| 促芽肥对杂交中稻再生力的作用与头季稻品种间着粒数的关系 |
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| 引用本文： | 徐富贤,熊洪,洪松,涂少权.促芽肥对杂交中稻再生力的作用与头季稻品种间着粒数的关系[J].西南农业大学学报,2000,22(4):310. |
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| 作者姓名： | 徐富贤 熊洪 洪松 涂少权 |
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| 作者单位： | 徐富贤（四川省农业科学院水稻高梁研究所，四川 泸州 646100）;熊洪（四川省农业科学院水稻高梁研究所，四川 泸州 646100）;洪松（四川省农业科学院水稻高梁研究所，四川 泸州 646100）;涂少权（四川省泸县立石镇农技站，四川 泸县 646103） |
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| 基金项目： | 四川省科委应用基础研究项目 |
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| 摘 要： | 以19个杂交中稻品种为材料，研究了促芽肥对杂交中稻再生力的作用与头季稻品种间着粒数的关系。结果表明头季稻品种间着粒数与其单位颖花的绿叶面积占有量呈极显著负相关关系，而头季稻品种着粒数越多，其光合产物满足头季稻高产的养分需要后剩余量越少；头季稻着粒数较高的品种蓄留再生稻，要求促芽肥施用时期提早，施用量也更高。
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| 关 键 词： | 杂交中稻 着粒数 再生力 促芽肥 |
| 文章编号： | 1000-2642(2000)04-0310-02 |
| 修稿时间： | 1999-12-26 |
EFFECTS OF N APPLICATION FOR BUD DEVELOPMENT ON THE RATOONING ABIIATY OF HYBRID MID-SEASON RICE AND ITS RELATIONSTHIP WITH |
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| XU Fu-xian
,XIONG Hong
,HONG Song
TU Shao-quan.EFFECTS OF N APPLICATION FOR BUD DEVELOPMENT ON THE RATOONING ABIIATY OF HYBRID MID-SEASON RICE AND ITS RELATIONSTHIP WITH[J].Journal of Southwest Agricultural University,2000,22(4):310. |
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| Authors: | XU Fu-xian XIONG Hong HONG Song
TU Shao-quan |
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| Institution: | XU Fu-xian
,XIONG Hong
,HONG Song
;(Rice and Sorghum Institute of Sichuan Academy of Agricultural Sciences, Luzhu, Sichuan 646100, China);TU Shao-quan
;(Lishi Agricultural Technique Spread Station, Luxian, Sichuan, Province Sichuan luxian, 646103,China) |
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| Abstract: | A field experiment was conducted to investigate the effects of N application for bud development {NABD) on ratooning ability of 19 mid-season rice hybrids. A highly significant negative correlation was found to exist between grain number per panicle and the leaf area for grain filling of the main crop. The more grains were set on the, panicle, the less photosynthetic matter remained in the basic stems for mtooning rice growth at harvest d the main crop. Thnerefore, when ratooning rice is to be cultivated with varieties having many grains per panicle of the main crop; more NABD will be needed and its application should be made at an earlier date. |
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| Keywords: | hybrid mid-season rice grains per panicle mtooning ability N application for bud development |
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