摘要
本文探讨了用PEG预处理提高长豇豆种子活力的可能性,认为在种子处理前宜先了解其活力状况。在15℃下用25%PEG6000水溶液预处理低活力种子1～2天、高活力种子2～3天均有促进萌发、提高活力的作用。高活力种子具有较强的抵抗低温高湿的能力,因此早春播种要选用高活力种子或经PEG预处理将其活力水平提高后的种子。
The possibility of improving seed vigor of Asparagus by PEG-6000 pretreatment was discussed. It suggested that the seed vigor state be made clear before pretreatment. In order to raise seed vigor level effectively, different methods must be adopted among the seeds of different seed vigor level. Under 15℃, the seed vigor level can be raised in 25% PEG-6000 water solution when seeds with lower vigor were treated 1-2 days or seeds with relative higher vigor 2-3 days. Seeds with high vigor can endure stress prevailing in spring sowing time. So at that time only the seeds with high vigor or the seeds which vigor was raised by pre-sowing treatment can be chosen. It also discussed the partial reason that PEG treatment can raise seed vigor and the problem of seed utilization.
出处
《种子》
CSCD
北大核心
1991年第1期32-35,共4页
Seed
