Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900

doi:10.3969/j.issn.1006-8082.2014.02.002

›› 2014, Vol. 20 ›› Issue (2): 7-10.DOI: 10.3969/j.issn.1006-8082.2014.02.002

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Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900

Online:2014-03-20 Published:2014-03-20

超级杂交稻Y两优900攻关片14.82 t/hm²产量结构分析及优化栽培途径探讨

1 国家杂交水稻工程技术研究中心/杂交水稻国家重点实验室，长沙 410125；2 湖南省水稻研究所，长沙 410125；3 隆回县羊古坳乡农业技术推广站，湖南隆回 422206；4 湖南袁创超级稻技术有限公司，长沙 410100

通讯作者: 邓启云
基金资助:
“863”计划课题“超高产水稻分子育种与品种创制”（2012AA101103）

Abstract

Abstract: A record of average yield of 14.82 t/hm2 was created in an area of 6.75 hm2 in 2013 in Hunan for Y Liangyou 900, which is a new combination with potential yield of phase Ⅳ super hybrid rice. Y Liangyou 900 has stong root system, high lodging resistance, large panicles with plenty of spikelets, high seed setting rate, ideal plant type, suitable growth duration, wide adaptability, good grain quality and multiple resistance to biotic and abiotic stresses. The leaf age, plants and ears dynamics and yield components of Y Liangyou 900（2013） and Y Liangyou 2（2011） are analysed, optimizing cultivation approaches of Y Liangyou 900 are discussed in the paper.

Key words: super hybrid rice, Y Liangyou 900, high-yielding cultivation techniques, yield components

摘要： Y两优900是利用广适性光温敏不育系Y58S为母本，籼粳交强优恢复系R900为父本选育的第四期超级杂交稻苗头组合，2013年在湖南创造了较大面积单产14.82 t/hm2的世界纪录。该组合根系发达、耐肥抗倒，穗大粒多，结实率高，具有株叶形态理想、熟期适中、适应性广、高产稳产、优质多抗等特点。本文对Y两优900与Y两优2号的产量构成因素进行了比较，并分析了其叶龄及苗穗数动态，提出优化栽培的技术途径。

关键词: 超级杂交稻, Y两优900, 高产栽培技术, 产量构成

CLC Number:

S511.04

LI Jian-Wu-1, ZHANG Yu-Zhu-2, XIAO Li-Min-3, WU Jun-1, ZHUANG Wen-1, DENG Qi-Yun-1, 4* . Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900[J]. , 2014, 20(2): 7-10.

李建武1, 张玉烛2, 肖利民3, 吴俊1, 庄文1, 邓启云1, 4*. 超级杂交稻Y两优900攻关片14.82 t/hm²产量结构分析及优化栽培途径探讨[J]. 中国稻米, 2014, 20(2): 7-10.

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Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900

超级杂交稻Y两优900攻关片14.82 t/hm²产量结构分析及优化栽培途径探讨

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Analysis on the Yield Components and Optiming Cultivation Approachs of Super Hybrid Rice Y Liangyou 900

超级杂交稻Y两优900攻关片14.82 t/hm2产量结构分析及优化栽培途径探讨

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超级杂交稻Y两优900攻关片14.82 t/hm²产量结构分析及优化栽培途径探讨