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寒优湘晴4144(寒丰A/湘T302晴三—2377),是由上海县粳稻杂优课题组选配而成的粳型杂交水稻新组合(以下简称“寒优湘晴”)。“寒优湘晴”以高产优质在本市水稻生产中崭露头角,几年来在上海郊县水稻生产的试验示范中,我们对“寒优湘晴”高产稳产栽培技术进行了探索和实践,现特撰写本技术规程,供参考验证。一、产量结构及其群体生育指标“寒优湘晴”具有根系、分蘖、穗粒三大优势,尤以穗粒优势更为明显。根据几年来示范结果表明,亩产600kg的产量结构指标是:每亩有效穗19～20
Han Youyouqing 4144 (Hanfeng A / Xiang T302 Jingsan-2377) is a new japonica hybrid rice combination (hereinafter referred to as “Hangyouxiangqing”), which is made up of the Shanghai-Guizhou Japonica hybrid group. In the experiment and demonstration of paddy production in the suburbs of Shanghai in recent years, we have explored and practiced the high and stable cultivation techniques of “Han You Xiang Qing” Write this technical specification for reference verification. First, the yield structure and heritability indicators “Han Youyouqing” has roots, tillers, spike three major advantages, especially the spike advantage is more obvious. According to several years of demonstration results show that the yield per mu 600kg structural indicators are: effective panicle 19 to 20