酸碱对低活力苜蓿种子萌发及初期生长的影响

以H2SO4，HCl，HNO3及NaOH为激活荆，研究其对低活力苜蓿种子萌发及初期生长产生的影响。结果表明：不同酸碱处理及其时间不同，效果差异明显，但各处理在不同程度上均对苜蓿种子萌发和初期生长有促进作用；尤其是短时间HNO3处理，对激发苜蓿种子活力效果最佳。

Effects of acid and alkali on gemination and initial growth of alfalfa seed with low vigor

Now study on seed vigor is one of the hot spots in the field of seed science.Using H_2SO_4,HCl,HNO_3 and NaOH as activators,their effects on gemination and initial growth of alfalfa seed with low vigor were studied.The results showed that the effects with different acid-base treatment and different time were different clearly.But each treatment promoted seed germinationmd initial growth in varying degrees.Especially HNO_3 treatment with short time had better effect on stimdating aefaefa seed vigor.The objectives of the current research were to raise activity of alfalfa seed with low vigor through acid-base treatment,and to look for the best method according with productive practice.It should have especidly important significance.