摘要
本文从种子萌发力、水分变化、百粒重变化等方面对成熟度与种子质量的关系进行分析。结果表明,诺丹冰草种子随着成熟度的提高,生活力逐渐增加,种子含水量不断下降,百粒重不断增大。同时对种子进行加速老化处理,结果表明老化处理后在15d～30d内收获的种子发芽率明显降低,而35d～40d收获的种子变化不明显,表明此阶段种子的活力已达到较高的水平。诺丹冰草种子最佳采收期的种子含水率约在20%～25%之间。
The relationship between seed quality and maturity degree were analyzed in the aspects of seed germinability, moisture dynamic and hundred seed weight. Results showed that the seed viability and hundred seed weight increased, and the seed moisture decreased along with the increase of seed maturity degree. After the accelerated ageing treatment, the germination rates of the seed harvested during 15d～30d after peak anthesis were decreased obviously, and that of seeds harvested during 35d～40d after peak anthesis did not change clearly, which indicated that the seed quality was increased along with the maturity degree. The optimum harvest time was when the seed moisture was about 20%～25%.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2004年第3期29-32,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
中国科学院知识创新工程"优良牧草种子生产基地的建立"专题(KSCXI-08-03-07)
