摘要
皖稻139系安徽省农科院水稻研究所育成的高产早籼新品种。对其产量及构成因素进行相关分析和通径分析表明,4个产量构成因素对产量贡献的大小依次为有效穗数、每穗总粒数、结实率和千粒重。产量7.50t/hm2以上的合理穗粒结构为:有效穗(330±10)万/hm2,每穗总粒数(95±5)粒,结实率80%,千粒重33.0g左右。高产栽培的主攻目标是在确保足够有效穗数的前提下促大穗,协调好有效穗数和每穗总粒数的关系,兼顾提高结实率。
A new early-maturing rice variety, Wandao 139, was characterized by high yield. The analysis of the yield components of Wandao 139 was done, and the results indicated that number of effective panicles was the most important factor to grain yield; the second was number of seedsetting. The suitable structure of yield （7.50 t/hm^2） was as fellow：3.3±0.1 million effective panicles per hm^2. 95±5 spikelets per panicle, seedsetting rate of 80 % and 1 000-grain weight of 33.0 g. And its high yield cultural techniques were present.
出处
《安徽农业科学》
CAS
北大核心
2005年第8期1359-1360,共2页
Journal of Anhui Agricultural Sciences
基金
农业部"948"项目-参与全球分子育种计划(2001-101)
安徽省优秀青年基金(04041041)资助。
