不同预措处理对3种牧草种子萌发的影响

Effects of Different Pretreatments on the Seed Germination of Three Forage Grasses

通过对百脉根(Lotus corniculatus L.)、红三叶(Trifolium pratense)和草木樨(Melilotus suaveolens)等北方常见的3种牧草进行预措处理,以探讨最适于牧草种子萌发的预处理方法。结果表明:百脉根的最适处理方法为40℃热水浸泡处理,发芽率和发芽势分别为64.0%和63.3%,与对照相比差异显著;红三叶种子萌发的最佳方法为25~35℃变温处理,发芽率和发芽势都达最大,分别为72.0%和68.7%;草木樨的预措处理首选60℃干热处理和20~30℃变温处理。

The most suitable pretreatment methods for three common forage grasses in northern China:Lotus corniculatus,Trifolium pratense&Melilotus suaveolens were discussed.Result shows that the optimal treatment method for Lotus corniculatus is 40℃hot water soaking treatment;the optimal method for Trifolium pratense seed germination is 25-35℃variable temperature treatment;the pretreatment of Melilotus suaveolens should first be dry heat treatment&20-30℃variable temperature treatment.