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本文采用不同冬春类型品种在我省南、中、北不同生态麦区的１５个县、市，１７个不同栽培条件试点上进行定位观察，获得１６个生态监测点，１１９个环境×品种的组合产量，明确了样点产量与产量结构的变异特点：穗数＞粒数＞粒重，表明穗数是最易受自然与栽培环境影响而变化的关键产量因素。试验在６０万穗之内，穗数与产量几乎呈线性关系，相关系数达０．８２。在对产量的作用力上，环境作用力占到９０％多，远大于品种对产量的作用，并相对表现为环境对穗数作用力较大，而品种对穗粒重作用力较大，试验年份由于越冬气温偏高，半冬性小麦在晋中忻州都安全越冬，春性小麦在霍县以南及太原小气候下亦安全越冬。
In this paper, different winter and spring types of cultivars in 15 counties, cities and 17 different cultivation conditions in the southern, central and northern ecotypes of our province were observed and located. Sixteen ecological monitoring sites, 119 environments × cultivars Combining the yields, the variation characteristics of yield and yield structure were clarified: the number of spikes> the number of grains> the weight of grains, which indicated that the number of spike was the key yield factor which was the most vulnerable to the changes of natural and cultivated environment. Within 600,000 spike experiments, the spike number was almost linear with the yield, with a correlation coefficient of 0.82. In the role of output on the role of environmental forces accounted for more than 90%, far greater than the variety of the role of yield, and the relative performance of the environment on the spike number greater force, while the variety of spike grain heavier force test Year As winter over high temperatures, semi-winter wheat Xinzheng in Jinzhong are safe and wintering, spring wheat in Huoxian and Taiyuan microclimate also safe wintering.