中国稻米Issue(3)：11-16,6.DOI:10.3969/j.issn.1006-8082.2014.03.003
迟播迟栽对不同类型粳稻品种机插产量及生育期的影响
Effect of Late Sowing and Late Transplanting on Yield and Period of Duration of Different Types of Mechanical Transplanting Rice
摘要
Abstract
A comparative study of the effects of late sowing and late transplanting on yield and formation of mechanical transplanting rice was conducted through setting five sowing dates based on the production conditions in the following three different regions: Taihu rice district in Changshu(Sunan), Lixiahe rice district in Xinghua(Suzhong), Huaibei rice district in Donghai(Subei), with hybrid rice and conventional rice as materials. The results showed that along with the delayed sowing date, the biomass yield, actual yield, harvest index, No. of panicles, No. of spikelets per panicle, total spikelets, seed-setting rate declined, and the whole period of growth and development shortened. Analysis revealed that sowing date showed greatest influence on No. of spikelets per panicle, then seed-setting rate, panicles and 1000-grain weight. The hybrid rice Yongyou 2638 exhibited higher yield advantage and potential through its large spike. But with the delay of sowing date and exaltation of latitude, the yield advantage of hybrid rice minified. Therefore, if there is no any production potential in the variety under the production mode of late sowing and late translating, a latest sowing date should be concluded, based on the variety characteristic and the phonological conditions, from the perspective of cultivating safe and stable yield. Some conclusions about the most late sowing date of the tested varieties was tentatively set in this paper, in order to provide a reference for the large scale production.关键词
水稻/迟播迟栽/机插/播栽期/产量/生育期Key words
rice/late sowing and late translating/mechanical transplanting/sowing and transplanting date/yield/period of duration分类
农业科技引用本文复制引用
邢志鹏,王文婷,李德剑,刘国林,刘国涛,朱佳炜,胡雅杰,张洪程,龚金龙,戴其根,霍中洋,许轲,魏海燕,张强..迟播迟栽对不同类型粳稻品种机插产量及生育期的影响[J].中国稻米,2014,(3):11-16,6.基金项目
国家粮食丰产科技工程资助项目（2011BAD16B03）；农业部专项“超级稻配套栽培技术开发与技术集成” （）
