Carrot Seed Technology Carrot Symposium 2017
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1 Carrot Seed Technology Carrot Symposium 2017 Bert Compaan Seed Pathology Research Lead
2 Seed Technology Research packing production testing coating priming & B-MOX sorting & upgrading disinfection
3 Carrot Seed Production
4 Carrot Seed Production seed maturation seed drying Production environment seed quality germination seed health
5 Seed Quality Control Seed health Research Seed analysis
6 Seed Quality Control Purity Germination Seed Count Seed Moisture Seed Health
7 Seed Technology Research packing production Quality testing Control coating priming & B-MOX sorting & upgrading disinfection
8 Naktuinbouw authorized (NAL) Protocols reviewed by NAKtuinbouw ISTA rules Proficiency Testing between companies and NAKtuinbouw Regular auditsby NAKtuinbouw
9 Germination testing
10 Abnormalities short or stuntedroots deformations in shoot development strong growth reductions necrotic spots discolorations
11 Moisture analysis Optimize storability Prevent microbial growth
12 Seed Health Tests Bio assays DNA test (PCR) Seed incubation test on agaror blotter Serological test Grow out test Dilution plating
13 Internation Seed Health Initiative MISSION Secure the delivery of healthyseedtocustomerson a worldwide basis. HOW Co-operation by exchanging information on economically important seed-borne pathogens of vegetable crops and developing detection methods for their control.
14 ISHI Health Test Protocols Accepted reference methods Facilitate seed trade Improve product quality Improverisk management Comply with national and international regulations Collaboration with ISTA for validation Co-operationwithnationaland internationalregulatoryand accreditation authorities.
15 Detection method characteristics specific selective sensitive reproducible/ reliable fast easy cheap
16 Xanthomonas hortorum pv. carotae bacterial blight foliar symptoms yellowing brown necrotic lesions disease symptoms in warm and humid conditions soilborne, plant debris, human, irrigation, insects, seedborne
17 Xanthomonas hortorum pv. carotae Detection Dilution plating sepcr
18 Alternaria dauci/ radicina leaf blight/ black rot brown black foliar lesions dry black lesions on the root disease symptoms humid environment soilborne, plant debris, wind, irrigation, seedborne
19 Alternaria dauci/ radicina freeze blotter sepcr seed incubation on agar
20 Seed disinfection Chemical Physical Hot water treatment Steam Vacuum Treatment Retest after treatment
21 Hot water treatment
22 Dose respons of disinfection Infection / Germination Treatment Time Germ Infection Contamination Vigour
23 Steam vacuum treatment
24 Priming & B-MOX Priming Basic priming technique Bmox Enhanced priming in combination with innovative seed coating
25 Benefits of priming Faster germination Improved Uniformity Improved Germination under Stress conditions Dormancy Breaking
26 Priming theory Water uptake during Germination Phase 1 Phase 2 Phase 3 Seed moisture imbibition Embryo development Germination
27 Priming theory Water uptake during Priming Phase 1 Phase 2 Phase 3 Seed moisture imbibition Embryo development Germination
28 Priming Pretreatment to improve seed germination rate and uniformity of seedling emergence
29 Treated Untreated
30 improved stress tolerance more energy, more vigour of the plant stimulates growth in early stage development of root system More smooth, uniform crop development Higher yield and pack out
31 Coating technology protection against fungi sowability dust reduction enhancement
32 Efficiency of fungicides in seed coating Seedlot A Treatment A.rad. A.dau. Germ. Naked 9.0 % 8.0 % 78 % Metalaxyl 3.5 % 3.8 % 76 % Iprodione& Metalaxyl 0.3 % 0.0 % 77 % Thiram, Iprodione& Metalaxyl 0.0 % 0.3 % 83 % Fludioxonil& Metalaxyl 0.0 % 0.0 % 83 % Seedlot B Treatment A.rad. A.dau. Germ. Naked 2.0 % 10.0 % 82 % Metalaxyl 0.5 % 3.3 % 87 % Iprodione& Metalaxyl 0.0 % 0.3 % 87 % Thiram, Iprodione& Metalaxyl 0.0 % 0.0 % 87 % Fludioxonil& Metalaxyl 0.0 % 0.0 % 87 %
33
34 Seed Technology Research
35 Exploring nature never stops
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