Improving the identification, handling and storage of âdifficultâ seeds ...

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Measuring seed moisture status ▪ Do community seed banks/farmers measure/estimate seed moisture status? ▪ Describe the method used. Storage containers What containers do community seed banks/farmers use to store seeds? Controlling pests and diseases Do community seed banks/farmers carry out any treatments to control insect pests or fungal infestation? Germination testing Do community seed banks/farmers carry out germination tests? ▪ What method is used? ▪ Please list any species that consistently demonstrate low germination (< 65%)? Constraints Please comment on priorities, needs and constraints to On-Farm seed management. Possible solutions to the constraints Briefly describe the solutions you would envisage to solve the problems, in terms of training, support in infrastructure or any other solutions.
7.3. List of “difficult to conserve” species, as identified by the workshop Family Genus Species Issues/germination results ACANTHACEAE Barleria acanthoides Low germination ALLIACEAE Allium cepa 92.5% germination after 13 years storage. Problem with handling. Conflicting results on viability. Inherently short lived, small embryo. AMARANTHACEAE Amaranthus sp Low viability. Some dormancy. Problems with handling. Maybe immaturity. Cleaning issues AMARANTHACEAE Beta sp Germination problems - difficulties in evaluation of seedlings infected with fungi AMARANTHACEAE Celosia schweinfurthiana Low germination ANACARDIACEAE Lannea alata Low germination ANACARDIACEAE Lannea triphylla Low germination ANACARDIACEAE Mangifera indica Problems in germination. Have to wait for fruits to mature, then remove pulp and wash seeds to avoid fungal infection (also use fungicide), then dry. Can conserve for 5 to 6 months, then regenerate after this time. Seeds may germinate during drying due to high relative humidity. ANACARDIACEAE Ozoroa obovata Low germination ANACARDIACEAE Sorindeia madagascariensis Low germination ANNONACEAE Annona senegalensis Low germination ANNONACEAE Xylopia tettensis Low germination APIACEAE Daucus carota Variation in seed maturity APOCYNACEAE Hoodia curorii ssp lurgadii High germination % at storage APOCYNACEAE Hoodia gordonii Problems in achieving germination rates above 50%. Improvement in germination % with pretreatment. APOCYNACEAE Hunteria zeylanica Low germination APOCYNACEAE Landolphia watsoniana Low germination APOCYNACEAE Orbeopsis sp Improvement in germination % with pretreatments APOCYNACEAE Stomatostemma monteiroae Improvement in germination % with pretreatments ARECACEAE Cocos nucifera Embryo rescue and storage as tissue culture possible. Storage in field genebanks. Recalcitrant. ARECACEAE Phoenix reclinata Improvement in germination % with pretreatments ARISTOLOCHIACEAE Aristolochia bracteolata Low germination ASCLEPIADACEAE Gomphocarpus stenophyllus Low germination BIGNONIACEAE Rhigozum brevispinosum High germination % at storage BORAGINACEAE Cordia sinensis Low germination
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Improving the identification, handl
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Improving the identification, handl
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1. Project background Supported by
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1.2. Workshop programme The worksho
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1.3. FAO presentation International
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Activity Areas on Institutions and
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Through the Seed and Plant Genetic
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GSPC /ITPGRFA). Purpose: improved i
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Orthodox but dormant Although less
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2. Country report summaries Support
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2.2. BOTSWANA presentation Botswana
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ecently released a biodiversity str
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follows: ▪ Selection of good seed
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- Low Constant temperature oven met
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▪ ▪ ▪ Blotting paper in Petri
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The second problem associated with
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inadequate seed numbers such as end
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2.7. LESOTHO presentation Lesotho N
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2.8. LIBYA presentation The Nationa
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2.9. MALAWI presentation Malawi Pla
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Species that demonstrate low levels
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2.10. MOZAMBIQUE presentation Agric
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Measuring seed moisture status ▪
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2.13. SEYCHELLES presentation Minis
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Crops to be considered for conserva
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Drying facilities/methods The proto
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2.14. SOUTH AFRICA presentation Sou
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Legume forages Grass forages back,
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which the viability seemed to be de
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amount of moisture in that sample.
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▪ Encourage and promote the conse
Page 63 and 64: efore the NPGRC acquired storage fa
Page 65 and 66: perennial wetland, as the field gen
Page 67 and 68: 3. Other stakeholders’ presentati
Page 69 and 70: IPGRI’s Vision People today and i
Page 71 and 72: ▪ ▪ ▪ Mali - Traditional seed
Page 73 and 74: ▪ Support services - development
Page 75 and 76: 3.3. SPGRC presentation Gene Bank M
Page 77 and 78: ▪ To fully operationalize SPGRC h
Page 79 and 80: ▪ have achieved the desk study an
Page 81 and 82: Mexican marigold and leaves of neem
Page 83 and 84: 4. RBG Kew species analysis Support
Page 85 and 86: Table 1. Families with greatest num
Page 87 and 88: Table 5. Completed tests and propor
Page 89 and 90: investigated were found to be recal
Page 91 and 92: 5.1. Format of group sessions Outpu
Page 93 and 94: 2. Most urgent training needs Main
Page 95 and 96: 5.3. GROUP 2 report Group members
Page 97 and 98: Top 5 equipment needs for group:
Page 99 and 100: esculentus Lycopersicon ▪ problem
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Page 103 and 104: ▪ ▪ ▪ ▪ Ethiopia - hygromet
Page 105 and 106: 6. Plenary Supported by Also suppor
Page 107 and 108: - South Africa - direct new project
Page 109 and 110: 7. Annexe Supported by Also support
Page 111 and 112: Mr. José de Menezes Ministry of Ag
Page 113: 7.2. Questionnaires (for reports) T
Page 117 and 118: EBENACEAE Euclea undulate Improveme
Page 119 and 120: POACEAE Sorghum bicolor Low viabili
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Improving the identification, handling and storage of âdifficultâ seeds ...