摘要
以绿豆种子为材料,研究了预吸胀种子脱水耐性的变化,以及Ca2+处理对种子脱水耐性的影响。结果表明:绿豆种子的脱水耐性随预吸胀时间的延长而下降;Ca2+预吸胀处理能提高种子的脱水耐性,适宜的Ca2+浓度为20mmol/L;Ca2+能修复预吸胀种子的脱水伤害,适宜的Ca2+浓度为2.5～5mmol/L。
Phaseolus radiatus seeds were used as experimental materials,and changes of desiccation tolerance of pre-imbibed seeds and effect of Ca^(2+) treatment on seed desiccation tolerance were studied in this paper.Results indicated that desiccation tolerance of P.radiatus seeds decreased with pre-imbibition,and that pre-imbibition treatment of Ca^(2+) could increase seed desiccation tolerance and optimal Ca^(2+) concentration was about 20 mmol/L,and that Ca^(2+) could repair dehydration damage of pre-imbibed seeds and optimal Ca^(2+) concentration was approximately 2.5~5 mmol/L.
出处
《西北植物学报》
CAS
CSCD
2004年第9期1599-1603,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
中国科学院知识创新工程重要方向性项目(KSCX2-SW-117)
中国科学院"百人计划"资助项目
广东省自然科学基金项目(001224)
国际植物遗传资源研究所资助项目(IPGRI
00/076)
关键词
绿豆种子
脱水耐性
修复
CA^2+
Phaseolus radiatus seed
desiccation tolerance
repair
calcium
