华北农学报Issue(z1)：125-130,6.
吉林省东部地区种植密度对玉米物质积累和灌浆特性的影响
Effects of Plant Density on Dry Matter Accumulation and Grain Filling in East Jilin Province
摘要
Abstract
Effects of plant density on dry matter accumulation and grain filling were studied in East Jilin Prov -ince.Maize cultivars Xianyu 335 and Nonghua 101 were used.Plant density significantly affected grain yield ,dry matter accumulation and grain filling characteristics ,but two cultivars showed different responses .Ears number and bare plant rate increased ,while the yield and dry matter per plant ,grain number per ear decreased significantly with the increase of plant density .Additionally ,population yield ,total dry weight and post-silking dry matter were differ-ent between cultivars .Grain yield of Nonghua 101 increased with the increase of plant density ,while total dry matter showed no reaction to plant density , and post-silking dry matter decreased firstly and then increased with the in-crease of plant density .On the contrary ,grain yield of Xianyu 335 decreased with the increase of plant density ,while total dry matter and post-silking dry matter increased .With the increase of plant density ,stem and leaf dry weight per plant reduced ,and the maximum leaf dry weight occurrence time delayed ,the amount of dry matter translocation was firstly increased and then decreased .Plant density had greater effect on 100-kernel weight by maximum filling rate,average filling rate and the beginning of linearity filling phase ,while effect on maximum filling period and grain filling duration was little .关键词
种植密度/干物质积累/籽粒灌浆Key words
Plant density/Dry matter accumulation/Grain filling分类
农业科技引用本文复制引用
陈鹏飞,陶洪斌,王存凯,孟祥盟,王璞..吉林省东部地区种植密度对玉米物质积累和灌浆特性的影响[J].华北农学报,2013,(z1):125-130,6.基金项目
国家玉米产业技术体系项目（CARS-02-26）；“十二五”粮食丰产科技工程项目 （）
