大豆生态研究──ⅩⅥ．光温综合作用基本原理及生长发育阶段划分的研究

根据野生大豆在原产地自然出苗后生长期间的光温动态规律，提出光温综合作用基本原理，划分生长发育阶段。野生大豆异地种植，根据异地生长期间的光温动态与材料的自然临界光温同时进行光温综合作用规律，提出复式光温综合作用原理，划分生长发育阶段。根据未展开叶生长速度与展开叶感光效应规律提出：气温＜２５．５℃为低温；２５．６～２７．９℃为适宜温度；＞２８℃为高温。根据不同光周期叶片生长速度提出：光照条件＜１３ｈ为短光；１３～１５．５ｈ为适宜光照，＞１５．５ｈ为典型长光。根据光温综合作用确定开花节位过程提出：由子叶感光效应确定的开花节位，即出苗到２复叶未展开叶露叶前为大豆感光阶段，由未展开叶和展开叶感光效应确定的开花节位，即２复叶未展开叶露叶到开花节位复叶发生始为大豆感温阶段。

Studies on Soybean Ecology XVI The Basic Principles of Comprehensive Effect of Light and Temperature and the Division of the Stages of Growth and Development

According to the trend of light and temperature of wild soybean during its growth period on its origination we put forward the basic principles of comprehensive effect of light and temperature, divided the stages of growth and development. According to the tempreature and the speed of growth and development, we point out that: Iow temperature is lower than 25. 5℃, 25. 6～27. 9℃ is suitable temperature, high temperature is higher than 28℃. According to the speed of trifoliate occurance under different photoperiod we put forward that: short light is shorter than 13h, 13～3. 5h is suitable light, long lihgt is longer than 15. 5h. We analyzed the relation between the beginning of development and light and temperature in different comprehensive effect of light and temperature. The stage of the sensitive effect to photoperiod of wild soybean is from the emergence of cytoleaden to the occurance of second trifoliate; The stage of the sensitive effect to temperature of wild soybean is from the occurance of second trifoliate to the occurance of the trifoliate of the flowering node.