| 麦茬机械水直播稻品种选择及高产栽培途径的探讨 |
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| 引用本文： | 郁文辉,周蕙新.麦茬机械水直播稻品种选择及高产栽培途径的探讨[J].扬州大学学报(农业与生命科学版),1996(3). |
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| 作者姓名： | 郁文辉 周蕙新 |
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| 作者单位： | 上海市长江农场农业公司 |
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| 摘 要： | １９９３～１９９５年对１０个水稻品种（系）机械水直播稻和小苗机插稻进行了对比研究。结果表明：（１）不同品种产量差异较大，８８１２２、８９１１两品系的产量较高，均超过７９５０ｋｇ／ｈｍ２；（２）产量与单位面积颖花量呈极显著线性正相关（ｒ＝０．８７５０＊＊）。每穗颖花数对单位面积颖花量的作用大于单位面积穗数；（３）每穗１次枝梗数与每穗颖花数呈极显著线性正相关，每穗退化１次枝梗数与每穗颖花数呈极显著线性负相关。
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| 关 键 词： | 水稻 品种 直播 产量 库容量 |
CULTURAL APPROACH TO HIGH YIELDING OF MECHANICAL DIRECT SEEDED FLOODED RICE |
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| Yu Wenhui,Zhou Huixing.CULTURAL APPROACH TO HIGH YIELDING OF MECHANICAL DIRECT SEEDED FLOODED RICE[J].Journal of Yangzhou University:Agricultural and Life Science Edition,1996(3). |
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| Authors: | Yu Wenhui Zhou Huixing |
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| Abstract: | rice varieties and lines were used in the comparation of mechanical direct seeded flooded rice with mechanical transplanting of young seedling. Results showed that, Varietal difference in the varieties was significant. High yields of 7 950kg/hm 2 or higher were obtained in lines 88122 and 8911. Yields of 88122 and Bin89 79 in the transplanted blocks were higher than those in direct seeded flooded blocks. Yields of 87 50, 8961 and Wuxiangjing in direct seeded flooded blocks were higher than those in transplanted blocks. Yield was positive linearly correlated with spikelets per unit area ( r =0.875 0 ** . Spikelets per panicle was more important in increasing spikelets per unit area than that of panicle number per unit area. Survived primary branch number per panicle was positive linearly correlated with spikelets per panicle. Retrograded primary branches per panicle was negative linearly correlated with spikelets per panicle. |
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| Keywords: | rice variety direct seeding yield sink capacity |
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