新疆农业科学2012，Vol.49Issue(6)：990-998,9.DOI:10.6048/j.issn.1001-4330.2012.06.002
新疆春播晚熟制种玉米超高产群体结构创建与生理指标的研究
Study on the Construction of Group Structure and Physiological Index of High -yield Hybrid Seed Production in Spring Maize
摘要
Abstract
[ Objective] The experiment aimed to provide scientific and theoretical basis and technical guidance for high - yield hybrid seed production in maize. [ Method ] Funong 22 was selected to study technical guidance for the high - yield seed production and physiological index, in which 7 densities and 3 levels of chemical regulator were used. [ Result]The results showed that the treating of 97.5 thousand plant/ hm2 and 675 mL/hm2 chlormequat chloride had the biggest production, which the production of living things is 31 102.5 kg/hm2,the grain weight is 185.03 g,economic coefficient is0.58, the total photosynthetic power is 5 355.1 thousand ( m2·d)/hm:, The average net photosynthetic rate was 6.31 g/(m2·d), the productivity of dry matter is 211.2 kg/ ( hm2·d). [ Conclusion ] Chemical control can decrease the height of the maize improve the productivity, direction and position of dry matter, increase the proportion of economic output and biological yield and transformation efficiency. Too sparse or too dense planting and too little or too much chemical control can both cause unfavorable effect on the construction of suitable group structure, thus reducing its economic output.关键词
玉米/密度/化控剂量/产量/农艺性状Key words
corn/density/chemical regulator/output/agronomical character分类
农业科技引用本文复制引用
郭斌,王友德,赵新成,吴志勇,欧阳伟,吴萍,柳延涛,桑志勤..新疆春播晚熟制种玉米超高产群体结构创建与生理指标的研究[J].新疆农业科学,2012,49(6):990-998,9.基金项目
新疆生产建设兵团"十一五"农业园区项目"玉米制种超高产机理及关键配套栽培技术研究"(2007GG03) （2007GG03）
