磺胺对小麦种子萌发和幼苗生长的影响

初步探讨了磺胺对小麦种子萌发与幼苗生长的影响。研究表明，用低浓度（＜6.0mg/L)的磺胺溶液浸泡小麦种子，能显著增加幼苗的根重，根长和根冠比，提高根系活力和叶片叶绿素的含量，降低幼苗的苗高，苗重，但对发芽率影响不大。高浓度（＞10．0mg/L)和安则强烈抑制小麦幼苗根，芽的生长，并导致幼苗形态的不良变化。

Effect of sulphanilamide on seed germination and growth of wheat

The preliminany nesearch on the effects of sulphanilamide on seed germination and growth of wheat shows that soaking the wheat seeds with a thin sulphanilamide solution(<6 0mg/L) can remarkably increase the weight,length of the seedling roots and root top ratio,improve the vitality of roots and the chlorophyll content of the plants,but it has little effect on the germination peroentage.And thick sulphanilamide solution(>10 0mg/L) will strongly checkthegrowth of the rootsand sprouts of wheat seedlings and result in harmful patterns of the seedlings.