| 节水灌溉下春小麦主要农艺性状与产量的相关及通径分析 |
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| 作者姓名： | 成雪峰 张凤云 柴守玺 |
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| 作者单位： | 菏泽学院资源与环境系 山东菏泽274000(成雪峰，张凤云)，甘肃农业大学农学院 甘肃兰州730070(柴守玺) |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了研究节水条件下春小麦产量与其它农艺性状之间的关系,选用15个春小麦品种(系)在节水灌溉下对其的主要农艺性状进行相关及通径分析,建立了回归方程。结果表明:农艺性状对产量的相关程度依次为:株高(0.48685),千粒重(0.45182),穗长(-0.31464),穗粒数(0.02924),单位面积穗数(0.01526)。对产量的直接影响重要性依次为:千粒重(0.71426),穗长(-0.56871),株高(0.46505),单位面积穗数(-0.17531),穗粒数(0.04272)。试验表明:河西绿洲灌区节水型(高WUE型)春小麦品种的选育应在适当单位面积穗数的前提下,朝高秆抗倒、大粒方向发展。
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| 关 键 词： | 春小麦 农艺性状 相关分析 通径分析 |
Correlation and Path Analysis on Main Agronomic Characters and Grain Yield of Spring Wheat under Water Saving Irrigation |
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| Authors: | Cheng Xuefeng Zhang Fengyun Chai Shouxi |
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| Institution: | 1,The Department of Resources and Environment Science, Heze University, Shandong, Heze 274000; 2,Agronomy college of Gansu Agricultural university, Gansu, Lanzhou 730070 |
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| Abstract: | Correlation and path analysis of main agronomic characters and gain yield of spring wheat under water saving irrigation were studied and regression equation was established with 15 cultivars of spring wheat under field experiment. The results indicated that correlation coefficient of yield and other 5 agronomic characters were decreased from plant height (0.48685), 1000-kernel weight (0.45182), spike length (-0.31464) and grain number per spike (0.02924) to spike number per unit (0.01526) in turn. The efficiencies of agronomic characters on yield were 1000-kernel weight (0.71426)> spike length (-0.56871)> plant height (0.46505)> spike number per unit (-0.17531)> grain number per spike (0.04272). The conclusion was given that varieties choosing and breeding of spring wheat should put emphasis on high plant, lodging resistance, Large Grain on the base of proper spike number per hectare. |
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| Keywords: | Spring wheat Agronomic character Correlation analysis Path Analysis |
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