谷子育种问题的思考

Study on Soybean Ecology Double Comprehensive Effect of Light and Temperature and the Ecotypes of Soybean of Different Evolutionary Types of China

摘要:

玉米是黑龙江省支柱粮食作物,提高粮食总产量,关键还是依靠玉米单位面积产量的提高。本项研究从选择品种,适期播种,群体种植结构模式,施肥方式以及提高肥料利用率等方面,选择出获得玉米高额产量的高产高效技术指标,供生产参考利用。

Abstract:

According to the natural critical photoperiod and temperature of 2963 soybean accessions of different evolutionary types in their origination locations, and therules in which the double comprehensive effect occured, when the accessions grow underthe natural temperature in Gongzhuling and 13.5 hour daylength, we determined the ecotypes of soybean in China,and pointed out the natural critical photoperiod and temperatureof 74 counties and cities located at different latitude and height,discussed the relationshipbetween comprehensive effect of light and temperature where there is no wild soybean andthe formation of community and the importance of studing the theory of the comprehensiveeffect of light and temperature.