摘要
研究了麻疯树种子的形态和萌发能力的变化,温度和光照对种子萌发的影响以及种子脱水耐性的变化。结果表明:麻疯树种子在开花后58d达到生理成熟期,此时种子的萌发率达到最大值;生理成熟期种子的适宜萌发温度范围为25～30℃,对脱水不敏感,且光照对种子的萌发率无显著影响。因此麻疯树种子是一种光中性的正常性种子。
The developmental changes in morphology and genninability of Jatropha curcas seeds, effects of temperature and light on seed germination, and changes in desiccation tolerance of mature seeds were studied in this paper. The results indicated that J. curcas seeds reached a physiological maturation at 58 days after anthesis, and that seed germination percentage reached a peak at physiological maturation, and then decreased. The optimal germination temperature was 25 to 30℃. J. curcas seeds were insensitive to dehydration at physiological maturation. There was not a notable effect of light on seed germination. Therefore, J. curcas seed was a non-photoblastic and orthodox seeds.
出处
《云南植物研究》
CSCD
北大核心
2008年第3期355-359,共5页
Acta Botanica Yunnanica
基金
中国科学院知识创新工程重要方向性项目(KZCX2-YW-414)
关键词
脱水耐性
萌发能力
麻疯树种子
光照
正常性种子
温度
Desiccation tolerance
Germinability
Jatropha curcas seeds
Light
Orthodox seed
Temperature
