Lipid deposition during seed formation 40 1. Soluble carbohydrate 2. Starch 3. Weight of thousand seeds H20 1 4 Nitrogen material 5. Lipids 0101722 294045 天数/d
1. Soluble carbohydrate 2. Starch 3. Weight of thousand seeds 4. Nitrogen material 5. Lipids Lipid deposition during seed formation
1. Reserve deposition rovide energ synthesis 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin. Aba 原胚期分化期物质积累成熟期休止期 0.8 三只赵 115212530 开花后天数/d近
1.Reserve deposition 2. Increased respiration (to provide energy for reserve synthesis). 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin, ABA
1. Reserve deposition 2. Increased respiration (to provide energy for reserve synthesis) 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin, ABA I CeLL EXPANSION I MATURATION DRYING 400 100 180 米 75 染 H200 140滥 100 20 0 15/6 29/6 13/7 2777 10/8 24/8 CELLDIVIsIoI 粗LLEx Cytokinin(o)、GA(A)、IAA(囗) resh weight
Cytokinin（o）、GA(Δ)、IAA(□) ---- fresh weight 1.Reserve deposition 2. Increased respiration (to provide energy for reserve synthesis) 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin, ABA
Environmental conditions affect seed )Humidity: dry and hot wind decrease )Temperature: high temperature: protein low temperature: lipid unsaturated )Nutrition: nitrogen: high protein, low lipids potassium: lipids and starch phosphate: lipids
Environmental conditions affect seed development ➢Humidity: dry and hot wind decrease ➢Temperature: high temperature: protein low temperature: lipid, unsaturated ➢Nutrition: nitrogen: high protein, low lipids potassium: lipids and starch phosphate: lipids
Physiological changes during fruit development Pollination Sti >Respiration rate changes Style Pollen tube Conversion of organic compounds Ovary Integument Eg Fertilization Female ametopny
Physiological changes during fruit development ➢Respiration rate changes ➢Conversion of organic compounds