紫花苜蓿农艺性状与产草量偏的回归分析OA
Partial Regression Analysis of Agronomic Traits and Yield of Alfalfa with Purple Flowers
采用偏回归分析方法,以引进的加拿大育成品种阿尔冈金,国内主流品种佰苜202、佰苜371、甘农5号、陇东紫花苜蓿,非主流品种挑战者、阿迪娜、极光、冰驰、大银河、MF4020、劲能5010、拉迪诺、旱地等共14个品种紫花苜蓿为试验材料,明确产草量与农艺性状之间定量关系.结果显示:(1)偏回归模型中,R=0.960,R2=0.922,8个自变量构建的偏回归模型对产草量的解释达到了92.2%,回归模型是可靠的.(2)建立产草量与农艺性状之间的偏回归方程:Y=9.821-0.008 X1-0.271 X2+0.366 X3+0.039 X4+0.002 X5+0.090 X6-0.838 X7-1.185 X8.研究认为,影响苜蓿产草量的2个主要农艺性状是均节长度和茎节数.
By using partial regression analysis,14 varieties of alfalfa,including the introduced Canadian cultivar Algonquin,domestic mainstream varieties Baimu 202,Baimu 371,Gannong 5,Longdong purple alfalfa,and non-mainstream varieties Chal-lenger,Adina,Aurora,Ice Chaser,Big Galaxy,MF 4020,Jinneng 5010,Ladino,and Dryland,were used as experimental materials to clarify the quantitative relationship between forage yield and agronomic traits.The results showed that:(1)In the partial re-gression model,R=0.960,R2=0.922,and the partial regression model constructed with 8 independent variables explained 92.2%of the forage yield,indicating that the regression model was reliable.(2)The partial regression equation between forage yield and agronomic traits was established as:Y=9.821-0.008 X1-0.271 X2+0.366 X3+0.039 X4+0.002 X5+0.090 X6-0.838 X7-1.185 X8.The study concluded that the two main agronomic traits affecting alfalfa forage yield were internode length and stem node number.
李增录;苏涛龙;袁婧;贺建龙;张振华;赵凤妮;王朝阳
正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300正宁县动物疫病预防控制中心,甘肃正宁 745300
农业科技
紫花苜蓿偏回归分析法农艺性状产草量
alfalfapartial regression analysis methodagronomic traitsyield
《畜牧兽医杂志》 2026 (1)
21-26,6
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