四川农业大学学报 ›› 2001, Vol. 19 ›› Issue (03): 211-213.doi: 10.16036/j.issn.1000-2650.2001.03.005

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杂交中稻Ⅱ优7号的高产生理基础与栽培技术的初步研究

朱永川, 况浩池, 徐富贤, 洪松, 郑家奎, 熊洪, 王贵雄   

  1. 四川省农业科学院 水稻高粱研究所, 四川 泸州 646100
  • 收稿日期:2000-12-11 出版日期:2001-09-30 发布日期:2017-03-06
  • 基金资助:
    国家农业科技跨越计划项目

Study on the High Yield Physiology Base and Cultural Techniques for Ⅱ-You 7 Hao, a New Hybrid Mid season Rice with High Yield and Good Quality

ZHU Yong-chuan, KUANG Hao-chi, XU Fu-xian, HUONG Song, ZHENG Jia-kui, XIONG Huong, WANG Gui-xiong   

  1. Rice and Sorghum Institute, Sichuan Academy of Agricultural Sciences, Luzhou 646100, Sichuan, China
  • Received:2000-12-11 Online:2001-09-30 Published:2017-03-06

摘要: 1998~2000年,研究了杂交中稻Ⅱ优7号的高产生理基础与栽培技术。结果表明:Ⅱ优7号高产的生理基础是库大源足,Ⅱ优7号产量为9000kg/hm2以上的库源特征为:齐穗期叶面积指数6.5~7.0,成熟期叶面积指数3.4~4.0,成熟期干物重18750kg/hm2左右,颖花37500万朵/hm2左右,齐穗期叶粒比1.7cm2/粒。Ⅱ优7号的主要高产农艺措施是:移栽叶龄3~4叶,栽24~27万穴/hm2,施纯N165~180kg/hm2

关键词: 杂交中稻, Ⅱ优7号, 高产生理, 栽培技术

Abstract: From 1998 to 2000, fifteen hybrid mid season rice combinations were used to study the high yield physiology and cultural techniques of Ⅱ-You 7 hao. Ⅱ-You 7 hao, with a yield of 9000kg per hectare or more, share the following sink-source characteristics:LAI 6.5~7.0 at full-heating and 3.0~4.0 at maturation; biomass yield 18750kg per hectare at maturation; spikelet number over 37500 per hectare, and the ratio of leaf area to grain about 1.7cm2 per grain. The high yield cultural techniques of Ⅱ-You 7 hao are as the following:planting date at 3~4 leaves for rice seedlings, planting density in 24×104~27×104 hills per hectare, the number application of N in 165~180kg per hectare.

Key words: HYBRID MID-SEASON, Ⅱ-YOU 7 HAO, HIGH YIELD PHYSIOLOGY, CULTURAL TECHNIQUES

中图分类号: 

  • S511.3+201