关于一年生植物的阶段发育,现在已被研究得比较广泛而且深入细致,在理论和实践两方面不断地获得了相当的成就,尤其是在农业生产实践上,人们掌握了一年生作物的阶段发育规律性,就能够有定向的来改变作物的生长和发育,来满足人们的愿望。对于多年生的植物的阶段发育问题薛尔蓋耶夫在他的著作中“阶段发育的理论是植物生理学底规律”已有综合性的讨论。这个问题在我们国家内,一般地,尚未展开研究和商讨。有 The stage development of annual plants has been studied more extensively and intensively and considerable achievements have been made both in theory and practice. In particular, in the practice of agricultural production, people have mastered the stage developmental regularity of annual crops , We can have the orientation to change the growth and development of crops to meet people’s wishes. For the stage development of perennial plants, Hilgayev in his book “The theory of stage development is the fundamental law of plant physiology” has been discussed comprehensively. This issue has not yet been studied and discussed in our country. Have