一、前言由水稻恶苗病病原真菌Gibberella fujikuroi(saw.)wr.所产生的一种化学物質——赤霉素,近年来引起了世界各国广泛的重視,到目前为止虽然赤霉素的研究还处于开始阶段,但現有的科学研究已經闡明赤霉素不仅对多种植物具有强大的刺激生长增加产量的作用。同时还具有象打破休眠、促使长日照植物在短日照条件下孕蕾开花以及代 I. Introduction The gibberellin, a chemical produced by Gibberella fujikuroi (saw.) Wr., A pathogenic fungus of rice plant, has attracted worldwide attention in recent years. Although gibberellin has been studied so far, It is still in its infancy, but existing scientific studies have demonstrated that gibberellin not only has the powerful effect of stimulating growth and increasing yield of various plants. At the same time also has like to break dormancy, prompting long-day plants under the condition of short sunshine bud blooming and generation