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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
引用本文:朱永川,况浩池,徐富贤,洪松,郑家奎,熊洪,王贵雄.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[J].四川农业大学学报,2001,19(3):211-213.
作者姓名:朱永川  况浩池  徐富贤  洪松  郑家奎  熊洪  王贵雄
作者单位:四川省农业科学院水稻高粱研究所
基金项目:国家农业科技跨越计划项目.
摘    要:1998~ 2 0 0 0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 90 0 0kg/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 1875 0kg/hm2 左右 ,颖花 375 0 0万朵 /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 2 4~ 2 7万穴 /hm2 ,施纯N 16 5~ 180kg/hm2 。

关 键 词:杂交中稻  Ⅱ优7号  高产生理  栽培技术
文章编号:1000-2650(2001)03-0211-03
修稿时间:2000年12月11

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.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[J].Journal of Sichuan Agricultural University,2001,19(3):211-213.
Authors:ZHU Yong chuan  KUANG Hao chi  XU Fu xian  HUONG Song  ZHENG Jia kui  XIONG Huong  WANG Gui xiong
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 7cm 2 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 24×10 4~27×10 4 hills per hectare,the number application of N in 165~180kg per hectare.
Keywords:HYBRID MID  SEASON    YOU 7 HAO  HIGH YIELD PHYSIOLOGY  CULTURAL TECHNIQUES  
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