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以３个熟性７个玉米品种为材料，采用分期播种改变玉米生长发育的温度和日长环境，从而影响玉米植株的性状。结果表明，温度和日长的改变明显影响了玉米单株叶片数、单株最大叶面积、株高和穗位高。单株叶片数与播种至雄穗分化始期的日平均气温和平均日长之间，单株最大叶面积、株高和穗位高与播种至抽丝的日平均气温和平均日长之间均表现为二元线性回归关系，模型对实际结果的拟合程度达９８％（Ｒ￣２＞０．９８）以上。
Using three mature seven maize varieties as material, the temperature and the long-time environment of maize growth and development were changed by sowing in stages, which affected the characters of maize plants. The results showed that the change of temperature and the length of day obviously affected the number of leaves per plant, the maximum leaf area per plant, plant height and ear height. Between the number of leaves per plant and the average daily temperature and the average daily length at the beginning of tassel differentiation, the maximum leaf area per plant, plant height and ear height were significantly higher than those between sowing and spinning days The performance of the binary linear regression, the model to the actual results of the fitting degree of 98% (R ~ 2> 0.98) above.