干旱地区农业研究2018，Vol.36Issue(3)：101-105,5.DOI:10.7606/j.issn.1000-7601.2018.03.15
种植方式对夏大豆鼓粒期叶片光合能力及籽粒灌浆特性的影响
Effect of planting patterns on photosynthetic capacity and grain filling characteristics of summer soybean at seed-filling stage
摘要
Abstract
Using summer soybean Heihe 45,a field experiment was conducted to study the effects of planting patterns on photosynthetic capacity and grain filling characteristics of summer soybean at seed-filling stage with plant population density of 5.5×105plant·hm-2of equal row spacing treatment in five planting patterns: 30 cm(A)、40 cm(B)、60 cm(C)and wide-narrow row treatment of "15 cm+30 cm"(D)and "15 cm+15 cm+60 cm"(E).The results suggested that transpiration rate(Tr)、stomatal conductance(Gs)、net photosynthetic rate(Pn)、leaf area index(LAI)、leaf area duration(LAD)of wide-narrow row spacing treatments were higher than those of e-qual row spacing treatments increased by 16.92％～72.22％,12.50％～69.23％,7.73％～34.80％,1.13％～33.88％,5.87％～47.70％.The average of grain phase accumulation、seed filling rate and seed filling duration of wide-narrow row spacing treatments were also higher than that of equal row spacing treatments.The yield of wide-narrow row spacing treatments were higher than that of equal row spacing treatments,the average yield of wide-narrow row spacing treatments was 24.51％higher than that of equal row spacing treatments.Therefore,the planting pattern of wide-narrow row spacing is one of the best cultivation patterns to improve yield increased for summer soybean.关键词
种植方式/夏大豆/宽窄行种值/光合特性/灌浆特性Key words
planting pattern/summer soybean/wide-narrow row spacing/photosynthetic characteristics/grain filling characteristics分类
农业科技引用本文复制引用
陈传信,唐江华,陈佳君,王娜,符小文,杜孝敬,徐文修..种植方式对夏大豆鼓粒期叶片光合能力及籽粒灌浆特性的影响[J].干旱地区农业研究,2018,36(3):101-105,5.基金项目
国家自然科学基金资助项目(31560372) （31560372）
