| 不同播期大麦、小麦、小黑麦产量结构的变异 |
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| 引用本文： | 侯远玉,杨文钰.不同播期大麦、小麦、小黑麦产量结构的变异[J].四川农业大学学报,1987(4). |
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| 作者姓名： | 侯远玉 杨文钰 |
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| 作者单位： | 四川农业大学农学系，四川农业大学农学系 |
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| 摘 要： | 运用方差分析和相关、回归、通径分析的方法分析了不同播期大麦、小麦、小黑麦产量及其构成因素的特点,结果表明,在本试验条件下,播期对不同麦类和不同品种的产量及其构成因素有明显的影响.不同麦类间对产量直接效应最大的因素是亩穗数,不同品种间对产量直接效应最大的因素.早播是穗粒数;晚播是千粒重.在适宜播期范围内,产量高并有它相适宜的产量构成,从而提出不同麦类品种提高单位面积产量的主攻方向.
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| 关 键 词： | 大麦(45CJ 49FJ) 小麦(49FJ 60DA) 产量(83AB)小黑麦 播期 产量构成因素 |
THE EFFECTS OF SEEDING DATES ON YIELD AND ITS COMPONENTS OF BARLEY, WHEAT AND TRITICALE |
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| Hou Yuanyu, Yang Wenyu Sichuan Agricultural University,Ya''''an,Sichuan,China.THE EFFECTS OF SEEDING DATES ON YIELD AND ITS COMPONENTS OF BARLEY, WHEAT AND TRITICALE[J].Journal of Sichuan Agricultural University,1987(4). |
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| Authors: | Hou Yuanyu Yang Wenyu Sichuan Agricultural University Ya'an Sichuan China |
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| Abstract: | The effects of seeding dates on yield and its components of five cultivars which belong to barley, wheat and triticale respectively were studied by multivariate analysis, correlation analysis and path analysis. The results showed that the yield and its components were significantly influenced by seeding dates and their sensitivity to seeding dates apparently varied with cultivars. The path analysis indicated that the direct effect of number of grain per spike on yield in early-sown plots was maximal and that of 1000 - grain weight on yield in later-sown plots was maximal. The way of raising yield for different levels of yield was also discussed. |
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| Keywords: | BARLEY WHEAT YIELD TRITICALE SOWING DATE YIELD COMPONENTS |
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