| 直播晚粳稻栽培高产途径探讨 |
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| 引用本文： | 程旺大,赵国平,张国平,汤美玲. 直播晚粳稻栽培高产途径探讨[J]. 上海农业学报, 2001, 17(2): 49-52 |
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| 作者姓名： | 程旺大 赵国平 张国平 汤美玲 |
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| 作者单位： | 1. 浙江省嘉兴市农科院,
2. 浙江大学农学院农学系, |
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| 摘 要： | 根据浙北地区直播晚粳稻秀水63计66块田的调查数据，采用多元回归分析、通径分析和灰色关联分析，进行了多角度的计算机统计分析，探讨了直播晚粳稻栽培的高产途径。结果表明，直播晚粳稻产量性状对产量的效应大小依次为每穗总粒数＞有效穗数＞结实率＞粒重，其高产途径应是在确保高产所需的适宜穗数基础上，主攻大穗。
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| 关 键 词： | 直播晚粳稻 高产途径 统计分析 栽培 |
| 文章编号： | 1000-3924(2001)02-49-04 |
| 修稿时间： | 2000-09-18 |
APPROACH TO THE WAYS FOR HIGH YIELD OF DIRECT-SEEDED LATE Japonica RICE |
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| Cheng Wangda,Zhao Guoping,Zhang Guoping,Tang Meiling. APPROACH TO THE WAYS FOR HIGH YIELD OF DIRECT-SEEDED LATE Japonica RICE[J]. Acta Agriculturae Shanghai, 2001, 17(2): 49-52 |
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| Authors: | Cheng Wangda Zhao Guoping Zhang Guoping Tang Meiling |
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| Abstract: | Based on the survey data in 66 fields of direct-seeded late Japonica rice variety Xiushui63 in North Zhejiang statistically analyzed by means of multivariate regression analysis, path-coefficient analysis and grey relation grade analysis, the ways for high yield of direct-seeded late Japonica rice were studied. It was showed that the descending order of effects of yield traits on yield was total grain number per panicle>effective panicle number per hm2>fertility>1000-grain weight. For obtaining high yield of direct-seeded late Japonica rice , it is necessary to develop the total grain number per panicle on the basis of obtaining a suitable effective panicle number which will insure high yield. |
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