日本国立大学的化学家研制出一种能使小麦增产的生长素。它是一种无毒的透明液体,其主要成分是二氯丁烷。在播种前,将小麦种子放在这种生长素的稀释溶液里浸泡处理,小麦的发芽率能提高25％,根系发达,茎秆壮实不易倒伏,可 Chemists at Japan’s National University have developed a growth hormone that increases wheat yield. It is a non-toxic, transparent liquid whose main ingredient is dichlorobutane. Prior to sowing, the wheat seeds are soaked in a dilute solution of this auxin, the germination rate of wheat can be increased by 25%, the root system is developed, and the stalks are strong and hard to lodge