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通过测试饲用玉米(Zea mays)不同株龄的株高、株干质量、叶片干质量、籽粒干质量、株鲜质量、穗位叶面积、株初水分含量、饲用系数、经济系数等主要数量性状,以株龄的旬龄为自变量,以测试数量性状为因变量,经数量转换,进行回归和相关分析。结果表明,株初水分含量频率的概率单位与株龄(旬龄)间呈极显著负相关,其他数量性状的频率或累积频率的概率单位与株龄(旬龄)间呈极显著正相关,并用回归方程预测了7个数量性状的主要增长期。
Through testing main plant height, plant dry weight, dry weight of leaves, dry weight of grain, fresh weight of plant, ear leaf area, initial moisture content, feed coefficient and economic coefficient of Zea mays Quantitative traits, with the age of ten years of age as an independent variable to test the quantitative traits as dependent variables, the number of conversion, regression and correlation analysis. The results showed that there was a significant negative correlation between the probability units of initial moisture content and plant age (ten instar), and the probability units of frequency or cumulative frequency of other quantitative traits showed extremely significant positive correlation with plant age (ten instar) The regression equation was used to predict the main growth period of seven quantitative traits.