Growth Inhibitor Accumulates in the Nutrient Solution of Closed System Rose Cultivation
|
|
- Abel Long
- 5 years ago
- Views:
Transcription
1 Growth Inhibitor Accumulates in the Nutrient Solution of Closed System Rose Cultivation N. Sato Shizuoka Agricultural Experiment Station Japan Keywords: rose, soilless culture, rock wool, closed system, autotoxicity Abstract The circulating solution was collected and analyzed for its nutrient concentration. Three types of solutions were prepared for the bioassay. One was the circulating nutrients solution. Activated charcoal was added to second solution. The third solution was prepared to the analyzed formula of nutrients solution using distilled water. The rooted cuttings of rose were planted in each solution and incubated in the growth chamber. The rate of change of fresh weight before and after the incubation was biggest for the prepared solution, which does not include the circulating solution. The fresh weight growth rate was smallest for the circulating solution, and the results for the activated charcoal treatment was between them. Since the activated charcoal does not have a sterilization effect, it is possible that the growth inhibitors accumulated in the solution during the circulating cultivation of roses. INTRODUCTION The total area of cut rose production cultivating by rock wool in Japan was 267 ha in 1998, which is almost half area of the total rose production in Japan (Horiuchi 2000). Most of the hydroponic production of cut roses is accomplished in an open system, as it is difficult to maintain the stable production of cut roses in a closed system (Horiuchi 2000). Closed hydroponics offer options to reduce the polluting effects from greenhouses (Van Os 1991). However, Yu et al. (1993) indicated that the exudates from the plants to the nutrient solution might decrease the plant production, and this inhibition has been attributed to the autotoxicity from the root exudates. Asao et al. (1998) reported the fruit yield of cucumber plants decreased significantly in the late reproductive stage and the growth was recovered by the biweekly renewal of nutrients or supplementation of activated charcoal to the nutrient solution. Asao et al. (2002) also reported there are many autotoxic substances in many kinds of flowers. It is possible that root exudates might decrease the rose growth rate in a closed hydroponic system. We investigated the possibilities of the accumulation of the growth inhibitor in the circulating solution. MATERIALS AND METHODS To make the long term circulating nutrient solution, we cultivated the Rosa hybrida L. cv. Asami Red (Rote Rose) by the rock wool closed system, without change the circulating solution. Well-rooted single node cuttings of Rote Rose growing on rock wool blocks (10cm x 10cm x 10cm) were planted in the foamed polystyrene bed containing rock wool slabs (10.5cm x 22.5cm x 91cm). Six rock wool blocks were placed in a slab. Two beds were placed side by side on the greenhouse benches (0.7m x 7.4m x 0.5m), which were spaced at 1.6m on-center (Fig.1). The roses were managed by an arching cultivation technique (Ohkawa,K. and Suematsu, M. 1999). The total harvested cut flower numbers and chlorosis cut flowers numbers were recorded from September 1 st, 2003 to June 30 th, The experiment performed with 4 replications. Each block consisted 12 plants. The solution, which has an electrical conductivity (EC) of 0.7dS/m (Table 1), was drip-irrigated hourly from 6am to 15pm. The drainage was collected in a tank, and reused as a nutrient solution. When the nutrient solution was less than a certain level in the tank, the newly adjusted solution (Table 1) was filled into the tank. The volume of the nutrient solution tank was 65L for 192 plants or 0.3L/plant. The treatment began in August 17 th, The circulating solution was collected and analyzed for the nutrient concentration (NO 3 -, H 2 PO 4 -, K +, Ca 2+, Mg 2+, Cl -, and SO 4 - by atomic absorption spectrometer (SHIMAZU CORPORATION AA-6650) and ion meter (Dionex Corporation DX-120). Proc. IS on Soilless Cult. and Hydroponics Ed: M. Urrestarazu Gavilán Acta Hort. 697 ISHS
2 Three types of solutions were prepared for the bioassay (Fig. 2). One was the circulating nutrients solution, which was diluted by an equal volume of distilled water. Activated charcoal was used in the second solution for 24 hours to remove the organic substances, and this solution was also diluted by an equal amount of distilled water. Asao et al. (1998) used activated charcoal (4 g/l) to remove the root exudates in the nutrient solution of cucumber hydroponics. The activated charcoal we used (33g/L) was enough to remove the root exudates. The third solution was prepared to the specifications of an analyzed formula of nutrients solution in distilled water (Table 2). Micronutrients were added to each solution before the bioassay began because activated charcoal also absorbs the EDTA-Fe (Yu et al. 1993). The single nodes of cut roses were planted in a container containing 20L of nutrient solution (Table 1) on March 10 th, Eight rooted cuttings of rose were planted in one container (20cm x 25cm x 5cm), which contained 2L of each solution (Fig. 3, Table 2), and incubated in the growth chamber from May 11 th to 27 th. The temperature of the light period was 28 degrees centigrade and the dark period was 23 degrees centigrade. The light intensity was 18,000 lux. The fresh weights of the rose nodes were measured before and after the incubation. The chlorophyll meter value of every three leaves of the cuttings were measured with a SPAD-502 Chlorophyll Meter (KONICA MINOLTA HOLDINGS, INC.). The Chlorophyll meter values correlated with the chlorophyll contents of the leaves (Kariya et al., 1981). RESULTS During the cultivation in the closed system, the analysis shows that high level of Magnesium and EC were detected (Table 3). After 5 months of rose cultivation in a closed system, the rate of chlorosis in the rose shoot was over 40%. And the rate of chlorosis shoot in the shoot reached over 70% in May. No chlorosis in the shoot was found in the open system (Fig. 4). The yield and quality of cut flowers cultivated in the closed system was lower, compared to those cultivated in the open system after 5 months of treatment (Table 4). The yield of roses from the closed system was much lower than open system after April, 8 months after the treatment began (Fig. 4). In the bioassay test, the change in fresh weight before and after the incubation was greatest when the prepared solution used, this solution did not include the circulating solution (Table 4). The fresh weight growth rate of the roses was smallest when using the circulating solution, and the activated charcoal treatment results were between them. The chlorophyll meter value of the leaves showed similar results to the growth rate, the leaves grown in the prepared solution using the distilled water showed the highest value (Table 4). The chlorosis was investigated in the circulating solution and the activated charcoal treatment. But the symptom was slightly lighter in the activated charcoal treatment (Fig. 5). The roots were almost rotting in the circulating solution. The roots of the activated charcoal treatment were not rotten, but browned. DISCUSSION In closed hydroponic culture without renewal of the nutrient solution, fruit yield of cucumber plants decreased significantly in the late reproductive stage (Asao et al., 1998). Asao et. al. detected a number of growth inhibitors by the cucumber root exudates from the closed hydoroponic nutrient solution(asao et al., 1999). They also found that the 2,4,- dichlorobenzoic acid was the strongest inhibitor in cucumber. In the experiment using roses, the chlorosis of cut flower leaves occurred after 4 months in the closed hydoroponic treatment. The rose production cultivated in closed system decreased significantly after 8 months. The EC and Magnesium in the nutrient solution of the closed system is higher than the open system, but the value of EC2.0dS/m is at a normal level for rose hydro culture (Kajihara et al., 2005). In the bioassay test, the growth rate was biggest in the prepared solution, which does not include the circulating solution. The fresh growth rate was smallest for the circulating solution, and the activated charcoal treatment was between them. Since the activated charcoal does not have the sterilization effect, pathogenic organism might not suppress the growth. If there exists an autotoxic subustance in roses like cucumbers, the concentration of 512
3 the autotoxic substances in nutrient solution may be high, since we used a small volume of tank (0.3L/plant). Asao et al. (2002) also reported, there are many autotoxic substances in many kinds of flowers. It is possible there are autotoxic substances exudated by roses. Literature Cited Asao et al Decrease of yield of cucumber by non-renewal of the nutrient hydroponic solution and reversal by supplementation of activated charcoal. J.Jpn.Soc.Hort.Sci67,99-105(in Japanese with English summary). Asao et al Influences of phenolics isolated from the nutrient solution nourishing growing cucumber (Cucumis sativus L.) plants on fruit yield. J.Jpn.Soc.Hort.Sci: 68, (in Japanese with English summary). Asao et al Effects of non-renewal of the nutrient solution and addition of activated charcoal on the growth of flowers in hydroponics. J.Jpn.Soc.Hort.Sci: (extra)70-1,325 (in Japanese). Asao et al Mitigation of cucumber autotoxicity in hydroponic culture using microbial strain. Scientia Horticulturae: Horiuchi,M Problems of rose production in Japan on management bases. Agriculture and Horticulture: 75(7) (in Japanese). Kariya et al Estimation of the chlorophyll contents in rice leafs using by the green meter. Japan.J.Crop.Sci. 50: (1) 21-22(in Japanese). Ohkawa,K. and Suematsu, M Arching Cultivation Techniques for Growing Cut-roses. Acta Hort 482: Van Os, E.A., Ruijs, M.N.A. and van Weel, P.A Closed business systems for less polution from greenhouses. Acta Hort 294: Hort.Sci., 69, (2000). Yu, J.Q., Lee, K.S. and Matsui, Y Effects of the addition of activated charcoal to the nutrient solution on the growth of tomato grown in the hydroponic culture. Soil. Sci. Plant Nutr. 39,
4 Tables Table 1. Nutrient solutions 1 used for closed hydroponic system of roses. y Chemicals Amounts (mmol/l) 1 Ca(NO 3 ) 2 4H KNO MgSO 4 7H NH 4 H 2 P H 3 BO ZnSO 4 7H MnSO 4 5H CuSO 4 5H NaMoO 4 2H NaFe-EDTA Full strength. 2 Amounts of salts per 1L of water. Table 2. Nutrient solutions used for bioassay. y ph EC NO 3 -N P Ca Mg K Cl SO 4 ds/m mmol/l mmol/l mmol/l mmol/l mmol/l mmol/l mmol/l Circulating solution Circulating solution supplemented by activated charcoal Prepared from distilled water Table 3. Nutrient solution during the cultivation period. g p date ph EC NO 3 -N P Ca Mg K Fe ds/m mmol/l mmol/l mmol/l mmol/l mmol/l ppm 2003 Aug Jan Closed system 2004 Apr Jul Aug Open system 2004 Jan Apr Jul
5 Table 4. Rose production and quality in a closed and an open system of hydroponics. Table 4 Rose production and quality in a closed and an open system of hydroponics Harvest period September,2003 to January,2004 February to Jun,2004 hydoroponic system No. of shoots Shoot length Fresh weight Cumulative shoot fresh weight (No./plant) (cm) (g) (g/plant) closed system open system t-test 1 NS NS NS NS closed system open system t-test * * NS * Data were taken from September 1, 2003 to June 30, NS,* Insignificant at P-0.05,significant at P=0.05, respectively. Table 5. Effect of activated charcoals treatment of the circulating solution to the rooted cut rose growth during 16 days 1. g g y Total weight (g) Chlorophyll meter value before (a) aftere (b) rate (b/a) % after treatment 2 Circulating solution b 30.3 b Circulating solution supplemented by activated charcoal a 35.1 ab Prepared from distilled water a 42.4 a NS 3 NS 1 Different letters within a column indicate significance at the 5% level by the Tukey test 2 SPAD-Chlorophyll value (KONICA MINOLTA HOLDINGS, INC.) 3 Not significant by the Tukey test. Figures Sampling Analyze the nutrition Activated Chacoal 33g/L 24h Nutrient elements were added to the distilled wate The solution was diluted by the same volume of distilld water,and added the micronutrients, then used for the bioassay Fig. 1. The cross section of arching technique. Fig. 2. Test procedure. 515
6 Fig. 3 Bioassay in growth chamber. Number of cut flowers Closed system chlorosis Sampling Open system chlorosis Sep Oct Nov Dec Jan Feb Mar Apr May Jun Fig. 4. Yield and chlorosis rate of rose shoots cultivated by closed system and open system Chlorosis shoots % Fig. 5. Rose cuttings after 16 days of treatment. 516
Evaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency:
Evaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency: Tissue nutrient contents, whole plant biomass and quality Raúl I. Cabrera Texas
More informationRecirculating Nutrient Solution in Strawberry
Recirculating Nutrient Solution in Strawberry A. Peralbo, F. Flores and J. López-Medina Dpto. Ciencias agroforestales. Universidad de Huelva Spain Keywords: Soilless, closed system, cork composted, compost,
More informationEffect of Nitrogen and Potassium on Growth and Development of Curcuma alismatifolia Gagnep.
Effect of Nitrogen and Potassium on Growth and Development of Curcuma alismatifolia Gagnep. S. Ruamrungsri, C. Suwanthada N. Ohtake, K. Sueyoshi and T. Ohyama and P. Apavatjrut Department of Applied Biological
More informationGrowth and Quality of Oriental Lilies at Different Fertilization Levels
Growth and Quality of Oriental Lilies at Different Fertilization Levels J. Treder Research Institute of Pomology and Floriculture ul. Pomologiczna 18 96-100 Skierniewice Poland Keywords: lily forcing,,
More informationEvaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency:
Evaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency: Leachate chemical quality and cumulative biomass and flower yields Raúl I. Cabrera
More informationFlowering Behaviour of Helichrysum obconicum DC.
Flowering Behaviour of Helichrysum obconicum DC. M.J.Oliveira Dragovic Direcção Regional de Agricultura, Centro de Floricultura, Lugar de Baixo, 936-119 Ponta do Sol, Madeira Portugal Keywords: Madeira,
More informationSHADING AND PERIODIC REPLACEMENT OF NUTRIENT SOLUTION IMPROVE PRODUCTION OF HYDROPONICALLY-GROWN WATERCRESS
SHADING AND PERIODIC REPLACEMENT OF NUTRIENT SOLUTION IMPROVE PRODUCTION OF HYDROPONICALLY-GROWN WATERCRESS B.A. Kratky, G.T. Maehira and R.J. Cupples University of Hawaii, 461 W. Lanikaula St. Hilo, HI
More informationEffects of Planting Date and Density on Tuber Production in Sandersonia aurantiaca
Effects of Planting Date and Density on Tuber Production in Sandersonia aurantiaca Glenn E. Clark Garry K. Burge New Zealand Institute for Crop & Food New Zealand Institute for Crop & Food Research Ltd
More informationMaximizing Vine Crop production with Proper Environmental Control
Maximizing Vine Crop production with Proper Environmental Control Richard McAvoy Department of Plant Science & Landscape Architecture University of Connecticut richard.mcavoy@uconn.edu 860-486-2925 Environmental
More informationWhat s in Your Media? Analysis of media components for micronutrient content
What s in Your Media? Analysis of media components for micronutrient content Internal Report for Young Plant Research Center Partners. Not for publication in part or full without permission of authors.
More informationGrowth and nutrient absorption of grapes as affected by soil aeration. I. With non-bearing Delaware grapes A. KOBAYASHI, K. IWASAKI and Y.
Growth and nutrient absorption of grapes as affected by soil aeration. I. With non-bearing Delaware grapes A. KOBAYASHI, K. IWASAKI and Y. SATO (College of Agriculture, Kyoto University) It is well known
More informationSEASONAL CROP COEFFICIENT OF GERBERA SOILLESS CULTURE
SEASONAL CROP COEFFICIENT OF GERBERA SOILLESS CULTURE A. Papadopoulosl. E. Maloupa^. F. Papadopoulos^ 1. National Agricultural Research Foundation, Soil Science Institute, 541 10 Thessaloniki, Greece.
More informationSalinity stress effects changed during Aloe vera L. vegetative growth
Journal of Stress Physiology & Biochemistry, Vol. 8 No. 2 2012, pp. 152-158 ISSN 1997-0838 Original Text Copyright 2012 by Olfati, Moqbeli, Fathollahi and Estaji ORIGINAL ARTICLE stress effects changed
More informationIrrigation and Fertilization. Mary M. Peet North Carolina State University
Irrigation and Fertilization Mary M. Peet North Carolina State University Topics Irrigation Fertilization Transplanting Pruning & Training Pollination Harvest Containers Packing lines Irrigation and Fertilization
More informationEffects of Reduced Nutrient and Water Availability on Plant Growth and Post-Production Quality of Hibiscus rosa-sinensis
Effects of Reduced Nutrient and Water Availability on Plant Growth and Post-Production Quality of Hibiscus rosa-sinensis C.W. Hansen 1 *, K.K. Petersen 1 and A.K. Larsen 2 1 Department of Horticulture,
More informationHow Important Are Bacteria for the Vase Life of Cut Gerbera Flowers?
How Important Are Bacteria for the Vase Life of Cut Gerbera Flowers? U. van Meeteren and R. Schouten Wageningen University Horticultural Supply Chains Group PO Box 630, 6700 AP Wageningen The Netherlands
More informationNitrogen Concentration in Nutrient Solution, Post Harvest Life and Flowers Commercial Quality in Hydroponic Gerbera
Nitroen Concentration in Nutrient Solution, Post Harvest Life and Flowers Coercial Quality in Hydroponic Gerbera L. Mascarini and G. Lorenzo Cátedra de Floricultura Facultad de Aronomía Universidad de
More informationIntroduction. Institute of Food and Agricultural Sciences North Florida Research and Education Center Suwannee Valley
Institute of Food and Agricultural Sciences North Florida Research and Education Center Suwannee Valley Comparison of Bare-Root and Plug Strawberry Transplants in Soilless Culture in North Florida 98-04
More informationStrawberry Establishment Period: More drip, less sprinkler. Oleg Daugovish, Ben Faber, Mike Cahn, Husein Ajwa, Steve Koike and Surendra Dara (UC ANR)
Strawberry Establishment Period: More drip, less sprinkler Oleg Daugovish, Ben Faber, Mike Cahn, Husein Ajwa, Steve Koike and Surendra Dara (UC ANR) Lack of water but plenty of soil pathogens Macrophomina
More informationFloricultura b.v.
Cymbidium cut flower large- and small-flowered Production procedures Substrate Cymbidium cut flower production commonly uses synthetic substrates such as rockwool or mineral wool in flakes, pellets or
More informationPotential of Adapted Mushroom Compost as a Growing Medium in Horticulture
Potential of Adapted Mushroom Compost as a Growing Medium in Horticulture G. Wever and A.M.M. van der Burg Wageningen UR, Applied Plant Research Glasshouse horticulture PO-box 8, NL 2670 AA Naaldwijk The
More informationInfluence of Different Protected Conditions on Growth and Yield of Parthenocarpic Cucumber (Cucumis sativus) Hybrids
International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 7 Number 05 (2018) Journal homepage: http://www.ijcmas.com Original Research Article https://doi.org/10.20546/ijcmas.2018.705.191
More informationComparison Blackberry Production Under High Tunnels and Field Conditions. High Tunnels
Comparison Blackberry Production Under High Tunnels and Field Conditions Dr. Elena Garcia Professor Dept. of Horticulture University of Arkansas High Tunnels What are high tunnels? High tunnels are passively
More informationPrimocane-fruiting Blackberry Cane Management
Primocane-fruiting Blackberry Cane Management Dr. Bernadine Strik, Professor of Horticulture Oregon State 2004 1 Un-tipped Tipped at 3 ft. Petiole Soft tip-site (3 ft) Removing 2 to 4 inches Leaf Petiole
More informationPOUR THRU TESTING OF CONTAINER MEDIA
Safety, Health & Environmental Management for Cornell Greenhouses Fall 2008 Workshop Nutrient Management POUR THRU TESTING OF CONTAINER MEDIA We will use meters to test properties of container media: ph
More informationTransplant Growth and Stand Establishment of Bell Pepper (Capsicum annuum L.) Plants as Affected by Compost-Amended Substrate
Transplant Growth and Stand Establishment of Bell Pepper (Capsicum annuum L.) Plants as Affected by Compost-Amended Substrate Juan Carlos Diaz-Perez 1, Darbie M. Granberry 1 and Peter Germishuizen 2 1
More informationDifferences in Organic Fertilizer Response
Differences in Organic Fertilizer Response Ohio State University Department of Horticulture, C. Pasian, Ph.D. 2010 Report by Jon Sammons, Ph.D. Geraniums at 65 Days After Planting Suståne 8 4 4 at 0.93
More information1 Introduction. Keywords: Aeroponics, nutrient concentration, minituber, rapid multiplication, Ethiopia. , 252 g KNO 3 PO 4.
Open Agriculture. 2017; 2: 155 159 Research Article Open Access Lemma Tessema* Abebe Chindi Gebremedhin W/Giorgis Atsede Solomon Egata Shunka Ebrahim Seid Determination of Nutrient Solutions for Potato
More informationPlantlet Regeneration via Somatic Embryogenesis in Four Species of Crocus
Plantlet Regeneration via Somatic Embryogenesis in Four Species of Crocus Roya Karamian Department of Biology, Faculty of Science Bu-Ali Sina University Hamadan Iran Keywords: meristems, micropropagation,
More informationOptimisation of the nutritional composition for the cultivation of
1 Optimisation of the nutritional composition for the cultivation of Eustoma grandiflorium in hydroponics De Rijck G. 1, Van Labeke M.C. 2 and Schrevens E. 1 1 Katholieke Universiteit Leuven Faculty of
More informationIrrigating Olives. Janet Caprile UCCE Farm Advisor Alameda & Contra Costa Counties
Irrigating Olives Janet Caprile UCCE Farm Advisor Alameda & Contra Costa Counties Olive Production Basics: Introduction to Irrigation Management Sunday, July 21, 1 3:30 pm, Livermore Why do olives need
More informationManaging Avocado Fertilization and Irrigation Practices for Improved Yields and Fruit Quality
Managing Avocado Fertilization and Irrigation Practices for Improved Yields and Fruit Quality David Crowley, Mary Lu Arpaia, Ariel Dinar, Julie Escalera Dept of Environmental Sciences, University of California,
More informationMonitoring Nutrition for Crops
Monitoring Nutrition for Crops Electrical conductivity ph Alkalinity Cation exchange and Anion exchange capacities Krishna Nemali, Ph.D. Why should you monitor nutrients for plants? $$ Nutrient deficiencies
More informationEFFECT OF FOLIAR SILICIC ACID ON GROWTH AND YIELD ATTRIBUTES OF ROSE CUT FLOWERS (ROSA HYBRID)
Plant Archives Vol. 15 No. 2, 2015 pp.931-937 ISSN 0972-5210 EFFECT OF FOLIAR SILICIC ACID ON GROWTH AND YIELD ATTRIBUTES OF ROSE CUT FLOWERS (ROSA HYBRID) Shrinivas Chikkur, N. B. Prakash, A. S. Parmeshwar
More informationTHE EFFECTS OF HUMATE AND ORGANIC FERTILIZER ON ESTABLISHMENT AND NUTRITION OF CREEPING BENT PUTTING GREENS
International Turfgrass Society Research Journal Volume 8, 1997. 437 THE EFFECTS OF HUMATE AND ORGANIC FERTILIZER ON ESTABLISHMENT AND NUTRITION OF CREEPING BENT PUTTING GREENS Stephen P. Dorer and Charles
More informationEffects of Long-Day Treatment Using Fluorescent Lamps and Supplemental Lighting Using White LEDs on the Yield of Cut Rose Flowers
JARQ 48 (4), 443-448 (04) http://www.jircas.affrc.go.jp Effects of Long-Day Treatment Using Fluorescent Lamps and Supplemental Lighting Using White LEDs on the Yield of Cut Rose Flowers Taro HARADA * and
More informationThe Effect of ph from Simulated Acid Rain on Multi- Element Contents of Leaves, Stems and Roots of the Crops
The Effect of ph from Simulated Acid Rain on Multi- Element Contents of Leaves, Stems and Roots of the Crops Osamu Fujino *, Masahiko Maekawa *, Tatsuo Kawahigashi *, Takeshi Minami **, Yuzuru Nakaguchi
More informationUsing Liquid Sources of Potassium Fertilizer in Highbush Blueberry. David Bryla USDA-ARS Horticultural Crops Research Unit Corvallis, OR
Using Liquid Sources of Potassium Fertilizer in Highbush Blueberry David Bryla USDA-ARS Horticultural Crops Research Unit Corvallis, OR Consumer demand Health benefits Availability year-round New global
More informationEvaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency:
Evaluating rootzone stresses and the role of the root system on rose crop productivity and fertilizer-water use efficiency: Setting-up the experiment Raúl I. Cabrera Texas A&M University Research and Extension
More informationIn vitro regeneration capacity of the ornamental varieties related to the cultural media
In vitro regeneration capacity of the ornamental varieties related to the cultural media Elena Alina Rovină 1 *, Mirela Călinescu 1, Catiţa Plopa, 1 Valentina Isac 1 1 Research Institute for Fruit Growing
More informationGreenhouse Plant Nutrition
Greenhouse Plant Nutrition 1. Start with water quality analysis Rosa E. Raudales, Ph.D. Assistant Professor and Extension Specialist rosa@uconn.edu Phone: (860) 486-6043 www.greenhouse.uconn.edu Se habla
More informationHYDROPONIC CULTURE OF TOMATO AND GERBERA AT DIFFERENT SUBSTRATES
HYDROPONIC CULTURE OF TOMATO AND GERBERA AT DIFFERENT SUBSTRATES Manios V.I. Abstract Papadimitriou M.D. Kefakis M.D. In our Institute several experimental hydroponic cultures were carried out in different
More informationAvocado Tree Pruning in Chile
Avocado Tree Pruning in Chile The Basics, Part I Claudio Hernandez A. Ing. Agr.. Technical Division chernandez@propal.cl Population: 17.400.000 (2012 estimated) Cap: Santiago de Chile GDP: US$15.000.-
More informationHigh Tunnel Pepper Variety Trial, 2011
High Tunnel Pepper Variety Trial, 2011 Judson Reid, Kathryn Klotzbach and Nelson Hoover Cornell Vegetable Program Introduction Peppers offer a viable option to tomatoes for commercial production in high
More informationSimulation for Year-Round Nutrient Uptake of Greenhouse Roses over Flowering Cycles
Simulation for Year-Round Nutrient Uptake of Greenhouse Roses over Flowering Cycles Wan-Soon Kim Mi-Young Roh J.H. Lieth and N.S. Mattson Research Development Bureau, RDA Suwon 441-77 Korea Protected Horticulture
More informationProlonging the Vase Life of Cut Carnation L. cv. Reina by Using Different Preservative Solutions
Bulletin UASVM Horticulture, 67(1)/2010 Print ISSN 1843-5254; Electronic ISSN 1843-5394 Prolonging the Vase Life of Cut Carnation L. cv. Reina by Using Different Preservative Solutions Orsolya FEIGEL-TEREK
More informationEffects of Seedling Container Size and Nursing Period on the Growth, Flowering, and Yield of Cut Flowers in Snapdragons (Antirrhinum majus L.
Original Paper Environ. Control Biol., 44 (1), 51-58, 2006 Effects of Seedling Container Size and Nursing Period on the Growth, Flowering, and Yield of Cut Flowers in Snapdragons (Antirrhinum majus L.)
More informationGrowth Dynamics and Decorative Value of Easy Pot Potted Freesia Depending on the Growing Conditions
Growth Dynamics and Decorative Value Easy Pot Potted Freesia Depending on the Growing Conditions Ludmila Startek Agricultural University Department Ornamental Plants Szczecin Poland Tel: 0048-91-4220851**354
More informationSUMMARY AND CONCLUSION
SUMMARY AND CONCLUSION Laboratory studies were conducted on clay, clay loam and sandy loam soils to study the effect of irrigation water qualities on hydraulic, dispersion and swelling properties. Twenty-seven
More informationCOMPORTAREA UNOR SOIURI DE CAIS ÎN FAZA DE MULTIPLICARE IN VITRO BEHAVIOUR OF SOME APRICOT CULTIVARS DURING IN VITRO MULTIPLICATION PHASE
COMPORTAREA UNOR SOIURI DE CAIS ÎN FAZA DE MULTIPLICARE IN VITRO BEHAVIOUR OF SOME APRICOT CULTIVARS DURING IN VITRO MULTIPLICATION PHASE Mirela Călinescu 1, Maria Isac 1, Andi Ciobanu 2 1 Research Institute
More informationEffect of Lactic Acid Fermentation Bacteria on Plant Growth and Soil Humus Formation T. Higa and S. Kinjo University of The Ryukyus, Okinawa, Japan
Effect of Lactic Acid Fermentation Bacteria on Plant Growth and Soil Humus Formation T. Higa and S. Kinjo University of The Ryukyus, Okinawa, Japan Abstract A study was conducted to determine if lactic
More informationGROWTH AND PERFORMANCE OF OWN-ROOTED CHANDLER AND VINA COMPARED TO PARADOX ROOTED TREES
GROWTH AND PERFORMANCE OF OWN-ROOTED CHANDLER AND VINA COMPARED TO PARADOX ROOTED TREES Janine Hasey, Bruce Lampinen, Joe Grant, Samuel Metcalf ABSTRACT Two studies comparing own-rooted Chandler to nursery
More informationEffect of Two Greenhouse Covers on Growth, Dry Matter Content and Tomato Fruit Quality
Effect of Two Greenhouse Covers on Growth, Dry Matter Content and Tomato Fruit Quality L. Jarquin-Enriquez, E. Mercado-Silva and E. Castaño-Tostado Departamento de Investigación y Posgrado en Alimentos
More informationRMUTP Research Journal Special Issue
Qualification of Expanded Clay Used as Substrate Culture Sunti Changjeraja 1 * Kitichai Ramingwong 1 Rungnapa Changjeraja 1 Chiti Sritontip 1 & Yuttana Kaosumain 1 1 Assistant Professor, Agricultural Technology
More informationForcing Containerized Roses in a Retractable Roof Greenhouse and Outdoors in a Semi-Arid Climate
Forcing Containerized Roses in a Retractable Roof Greenhouse and Outdoors in a Semi-Arid Climate Ursula K. Schuch Plant Sciences Department University of Arizona, Tucson, AZ 85721 Abstract Sales of containerized
More informationWorkgroup. UCD Alfalfa. Utilizing Plant Tissue Testing & Application Methods to Maximize Fertilizer Efficiency
Utilizing Plant Tissue Testing & Application Methods to Maximize Fertilizer Efficiency Steve Orloff, Dan Putnam, and Rob Wilson UC Cooperative Extension Support from DANR Laboratory and International Plant
More informationProject Leaders Curt R. Rom University of Arkansas Dept of Horticulture 316 PTSC, Fayetteville AR
Interim - Annual Report, Year 1 of a 2 Year Study (2008) Title: Pruning Management for Primocane-fruiting Blackberry Production in High tunnels in Arkansas. Project Number: SRSFC 2008-21 Funding Period:
More informationThe Effects of Precooling Temperatures and Durations on Forcing of Lilium longiflorum, Nellie White
The Effects of Precooling Temperatures and Durations on Forcing of Lilium longiflorum, Nellie White Frankie L. Fanelli 1 Department of Horticultural Science North Carolina State University Raleigh, NC
More informationEFFECT OF N, P, K CONCENTRATIONS ON YIELD AND FRUIT QUALITY OF TOMATO (SOLANUM LYCOPERSICUM L.) IN TUFF CULTURE
ORIGINAL PAPER EFFECT OF N, P, K CONCENTRATIONS ON YIELD AND FRUIT QUALITY OF TOMATO (SOLANUM LYCOPERSICUM L.) IN TUFF CULTURE Majid FANDI*, Jalal MUHTASEB**, and Munir HUSSEIN* *The National Center for
More informationNUTRITION FOR GREENHOUSE TOMATOES
dlinnesota Flower Growers Bulletin - July, 99 Volume, Number NUTRITION FOR GREENHOUSE TOMATOES Richard J. McAvoy Extension Specklist - Greenhouse Crops University of Connecticut Reprinted from the Connecticut
More informationPASTURE AND HAY FIELDS: SOIL FUNDAMENTALS. Sanders County April 8, Clain Jones
PASTURE AND HAY FIELDS: SOIL FUNDAMENTALS Sanders County April 8, 2015 Clain Jones clainj@montana.edu 994-6076 Objectives Present soil properties and how they interact with plant nutrients Illustrate the
More informationEffect of Storage Duration in the Quality of Vermicompost
Research article erd Effect of Storage Duration in the Quality of Vermicompost NATTIRA KLEAWKLAHARN Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand CHULEEMAS BOONTHAI IWAI* Faculty of
More informationIdentifying the SIX Critical Control Points in High Tunnel Production
Identifying the SIX Critical Control Points in High Tunnel Production Terrance T. Nennich, Extension Professor Emeritus Vegetable and Small Fruit Production University of Minnesota Extension nenni001@umn.edu
More informationAsparagus Response to Water and Nitrogen
Asparagus Response to Water and Nitrogen Item Type text; Article Authors Roth, Robert L.; Gardner, Byrant R. Publisher College of Agriculture, University of Arizona (Tucson, AZ) Journal Vegetable Report
More informationEffects of Preplant Phosphoric Acid Treatment on P Retention of Tuffs of the Canary Islands
Effects of Preplant Phosphoric Acid Treatment on P Retention of Tuffs of the Canary Islands C.D. Hernández, A.R. Socorro and M.C. Cid Instituto Canario de Investigaciones Agrarias Apartado 0. 3200 La Laguna,
More informationEffects of Gibberellic Acid on the Vase Life of Cut Patumma (Curcuma alismatifolia Gagnep.) Chaing Mai Flowers
Effects of Gibberellic Acid on the Vase Life of Cut Patumma (Curcuma alismatifolia Gagnep.) Chaing Mai Flowers T. Kjonboon and S. Kanlayanarat Division of Postharvest Technology King Mongkut s University
More informationArnold Schumann, Kevin Hostler, Laura Waldo, Wije Bandaranayake (UF/IFAS, CREC) 2015 Fluid Forum February 17, 2015 Scottsdale, AZ
Advanced Production Systems for Florida Citrus and Blueberry Crops Arnold Schumann, Kevin Hostler, Laura Waldo, Wije Bandaranayake (UF/IFAS, CREC) 2015 Fluid Forum February 17, 2015 Scottsdale, AZ Introduction
More informationSUBSTRATES EFFECTS ON GROWTH, YIELD AND QUALITY OF ROSA HYBRIDA L.
Pak. J. Bot., 44(1): 177-185, 2012. SUBSTRATES EFFECTS ON GROWTH, YIELD AND QUALITY OF ROSA HYBRIDA L. IFTIKHAR AHMAD 1,*, M. ASLAM KHAN 1, M. QASIM 1, M. SHAHZAD ZAFAR 1 AND RASHID AHMAD 2 1 Institute
More informationManagement strategies for fertigation of sweet cherry
Management strategies for fertigation of sweet cherry Denise Neilsen and Gerry Neilsen Summerland Research and Development Centre, Summerland, BC, Canada V0H 1Z0 MCAREC Sweet Cherry Symposium, Feb. 4 th,
More informationA New Hydroponic Substrate GREENHOUSE TOMATO CULTIVATION ON GROWSTONES GROW BAGS
A New Hydroponic Substrate GREENHOUSE TOMATO CULTIVATION ON GROWSTONES GROW BAGS A comparison between cultivation on Growstones and Rockwool Written by Paula Costa, Ph.D Director of Research & Development
More informationMATERIALS AND METHODS
393 Evaluation of an Alternative Method of Rooting Hormone Application in Cutting Propagation 1 Eugene K. Blythe, Jeff L. Sibley, and Ken M. Tilt Auburn University, Department of Horticulture, Auburn,
More informationEffect of different salinity levels on In vitro and Ex vitro growth of potato. Students: Ahmed Abu-Madi, Ali Nawsreh, Mutaz Arfat andmusab Bani Oedhe
Effect of different salinity levels on In vitro and Ex vitro growth of potato Students: Ahmed Abu-Madi, Ali Nawsreh, Mutaz Arfat andmusab Bani Oedhe Project Supervisor Dr. Hassan Abu-Qaoud Potato is a
More informationRole of Plant Hormones on Vegetative Growth of Tomato (Lycopersicon esculentum Mill.)
International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 6 Number 9 (2017) pp. 3319-3323 Journal homepage: http://www.ijcmas.com Original Research Article https://doi.org/10.20546/ijcmas.2017.609.410
More informationGRAFTING OF VEGETABLES TO IMPROVE GREENHOUSE PRODUCTION
GRAFTING OF VEGETABLES TO IMPROVE GREENHOUSE PRODUCTION Masayuki Oda College of Agriculture, Osaka Prefecture University, Sakai Osaka 5998531, Japan ABSTRACT In vegetable production in greenhouses, most
More informationHigh Tunnel Primocane Fruiting Blackberry Production in Cold Region of Midwest*
High Tunnel Primocane Fruiting Blackberry Production in Cold Region of Midwest* Shengrui Yao, Department of Horticulture, North Central Research and Outreach Center, University of Minnesota, Grand Rapids,
More informationBiosolids Dewatering, Monitoring, and Disposal Programs
Water and Waste Department Environmental Standards Division Biosolids Dewatering, Monitoring, and Disposal Programs Environment Act Licence #1089E RR 2016 Water and Waste Department Service des eaux et
More informationof six fertilizers on vegetative growth and flowering of phalaenopsis orchids
ELSVIER Scientia Horticuhurae 65 ( 1996) I9 I - 197 SCIENTIA HORllCULTuM Effects of six fertilizers on vegetative growth and flowering of phalaenopsis orchids Yin-Tug Wang Department of Horticultural Sciences,
More informationSunlight. Chlorophyll
Plant Nutrition & Soil Fertility Richard Smith Vegetable Crop and Weed Science Farm Advisor University of California Cooperative Extension Monterey, Santa Cruz and San Benito Counties Plant Nutrition 1.
More informationTHE USE OF A SMALL HYDROPONIC SYSTEM FOR PRODUCING MARIGOLDS
THE USE OF A SMALL HYDROPONIC SYSTEM FOR PRODUCING MARIGOLDS M.A. Wilson', D. Rogers', VA. Khan 2, and C. Stevens' 'Department of Agriculture, Southeast Missouri State University, Cape Girardeau, MO 63701.
More informationTechnology Transfer of Greenhouse Aeroponic Lettuce Production Information to Alberta Growers,
Technology Transfer of Greenhouse Aeroponic Lettuce Production Information to Alberta Growers, Nabeel Mohammed Greenhouse Research & Production Complex ( GRPC) Lacombe - AB January 18, 2017 Introduction:
More informationKeeping greenhouse soils fertile: nutrients, compost and salt. Rupert Jannasch, Ironwood Farm ACORN Greenhouse Workshop Feb 28, 2012
Keeping greenhouse soils fertile: nutrients, compost and salt Rupert Jannasch, Ironwood Farm ACORN Greenhouse Workshop Feb 28, 2012 Greenhouse soils are unlike field soils! Higher nutrient levels Less
More informationArtificial Light Source Using Light-emitting Diodes (LEDs) in the Efficient Micropropagation of Spathiphyllum Plantlets
Artificial Light Source Using Light-emitting Diodes (LEDs) in the Efficient Micropropagation of Spathiphyllum lets Duong Tan Nhut 1,2, T. Takamura 1, H. Watanabe 3 and M. Tanaka 1 1 Faculty of Agriculture,
More informationSabri BRAHA, Petrit RAMA
Interaction ORIGINAL SCIENTIFIC between the PAPER time when taking hard wood cuttings and Indol Butyric Acid and Naphthalene Interaction between the time when taking hard wood cuttings and Indol Butyric
More informationGROWTH, YIELD AND QUALITY OF Rosa hybrida L. AS INFLUENCED BY VARIOUS MICRONUTRIENTS
Pak. J. Agri. Sci., Vol. 47(1), 5-12; 2010 ISSN (Print) 0552-9034, ISSN (Online) 2076-0906 http://www.pakjas.com.pk GROWTH, YIELD AND QUALITY OF Rosa hybrida L. AS INFLUENCED BY VARIOUS MICRONUTRIENTS
More informationPerformance Analysis of Water-Water Heat Pump System of 100 kw Scale for Cooling Agricultural Facilities
Original Article J. of Biosystems Eng. 39(1):34-38. (2014. 3) http://dx.doi.org/10.5307/jbe.2014.39.1.034 Journal of Biosystems Engineering eissn : 2234-1862 pissn : 1738-1266 Performance Analysis of Water-Water
More informationTitle: Development of Micropropagation and Acclimation Protocols for the Commercialization of a New Bonsai Ornamaental Tree for the California Market.
Title: Development of Micropropagation and Acclimation Protocols for the Commercialization of a New Bonsai Ornamaental Tree for the California Market. Authors: Dan E. Parfitt 1, Helen M. Chan 2, and Ali
More informationThe quest for acid-tolerant lucerne
The quest for acid-tolerant lucerne Graham Centre Sheep Forum Richard Hayes, Research Scientist Why do we want Acid-tolerant (AT) lucerne? Soils of SNSW are generally acidic 74% of ~ 4700 soils in SW NSW
More informationGrowing Media Including Palm Waste in Soilless Culture of Cucumber
International Journal of Vegetable Science, 18:1 9, 2012 Copyright Taylor & Francis Group, LLC ISSN: 1931-5260 print / 1931-5279 online DOI: 10.1080/19315260.2011.568599 Growing Media Including Palm Waste
More informationOPTIMIZING FERTIGATION FREQUENCY FOR ROSA HYBRIDA L.
Pak. J. Bot., 4(2): 533-545, 28. OPTIMIZING FERTIGATION FREQUENCY FOR ROSA HYBRIDA L. M. QASIM, IFTIKHAR AHMAD AND TANVEER AHMAD Institute of Horticultural Sciences, University of Agriculture-384, Faisalabad,
More informationPRODUCTION OF HIGH QUALITY BULBOUS FLOWERS IN POTHWAR
Proceedings: International Symposium on Prospects of Horticultural Industry in Pakistan 28 th to 30 th March, 2007 Institute of Horticultural Sciences, University of Agriculture, Faisalabad PRODUCTION
More informationPHYTOPHTHORA ROOT AND RUNNER ROT OF CRANBERRY IN WISCONSIN- THE CURRENT SITUATION
23 PHYTOPHTHORA ROOT AND RUNNER ROT OF CRANBERRY IN WISCONSIN- THE CURRENT SITUATION Michael J. Drilias and Steven N. Jeffers Department of Plant Pathology University of Wisconsin-Madison Root and runner
More informationWater and Nutrient Use Efficiency of a Tomato Crop as Affected by Two Refrigeration Methods: External Mobile Shading and Fog System
Water and Nutrient Use Efficiency of a Tomato Crop as Affected by Two Refrigeration Methods: External Mobile Shading and Fog System E. Medrano, P. Lorenzo, M.C. Sánchez-Guerrero, M.L. García, I. parrós,
More informationFIRST YEAR RECOVERY FOLLOWING A SIMULATED DROUGHT IN WALNUT. D. A. Goldhamer, R. Beede, S. Sibbett, D. Ramos, D. Katayama, S. Fusi, and R.
FIRST YEAR RECOVERY FOLLOWING A SIMULATED DROUGHT IN WALNUT D. A. Goldhamer, R. Beede, S. Sibbett, D. Ramos, D. Katayama, S. Fusi, and R. Jones ABSTRACT A one year drought was simulated in on mature conventionally
More informationGetting the Most Plant Response for Your Fertilizer $
Getting the Most Plant Response for Your Fertilizer $ Ted Bilderback Nursery Extension Specialist Department of Horticulture Science North Carolina State University Ted_Bilderback@ncsu.edu http://www.ces.ncsu.edu/depts/hort/nursery/
More informationResponse of Cymbidium Pine Clash Moon Venus to major nutrient at vegetative growth stage
Journal of Ornamental Horticulture, 13 S.K. (3) Naik, :182-188, D. Barman 2010 and R.P. Medhi Response of Cymbidium Pine Clash Moon Venus to major nutrient at vegetative growth stage S.K. NAIK, D. BARMAN
More informationEffect of Two Irrigation Frequencies on Rose Flower Production and Quality
Effect of Two Irrigation Frequencies on Rose Flower Production and Quality C. Kittas, G. Dimokas, Ch. Lykas and N. Katsoulas University of Thessaly, School of Agricultural Sciences, Department of Agriculture,
More information1. Which is a light-weight inorganic mica mineral capable of absorbing a large amount of water in growing media? A. B. C. D.
Student Name: Teacher: Date: Test: 9_12 Agriculture AP41 - Horticulture I Test 2 Description: Soils, Nutrients, Fertilizers District: Wake County Form: 501 1. Which is a light-weight inorganic mica mineral
More informationUsing super oxygenated water in high tunnel tomato and strawberry production
Using super oxygenated water in high tunnel tomato and strawberry production Terrance T. Nennich, Extension Professor Vegetable and Small Fruit Production University of Minnesota Extension nenni001@umn.edu
More informationThe Effects of The Pursanova Water Treatment System on the Cultivation of Romaine Lettuce
The Effects of The Pursanova Water Treatment System on the Cultivation of Romaine Lettuce Tamagawa University Agriculture Department 3rd Year Class 1 #108 Agriculture Class Agricultural Production Management
More informationTransformation Protocol for Tobacco Abbreviated
Transformation Protocol for Tobacco Abbreviated Streak out bacteria onto YM 2-3 days 28 C Co cultivation on RMOP 3-11 days in dark Selection on RMOP-TCH Subculture every 2 weeks Plantlets onto MST-TCH
More information