摘要
在25℃恒温条件下,将花生、大豆、绿豆、水稻和玉米种子于硅胶中脱水干燥以探明种子内贮藏物和种胚着生部位对种子脱水速率的影响,结果表明:花生种子脱水速度最快,甜玉米和大豆种子次之,糯玉米、水稻和绿豆种子脱水最慢。比较不同种子内优势贮藏物发现,种子脱水速率与种子内脂肪含量存在明显的正相关。另外,花生种子的种胚脱水速率滞后于子叶的脱水速率,大豆和绿豆种子的种胚和子叶同步脱水,即种胚着生部位可能会对种子脱水产生一定影响。
Seeds were dried by sihca at 25° Loustaut temperature, the result showed that the speed of dehydra- ting of peanut seed was quickest than that of others seeds. Comparing with the prominent storage substances in different seeds, there was a positive correlation between the speed of dehydrating and the oil content of seeds. The speed of dehydrating of embryo was slower than of cotyledon of peanut seed, however, the speed of dehydrating of embryo and cotyledon was similar in soybean and mung bean seeds. It showed that there was a position effectivity of embryo, which influences the dehydrating speed of seeds.
出处
《种子》
CSCD
北大核心
2005年第9期6-8,共3页
Seed
基金
国家自然科学基金项目资助(30370155)
