不同熟期玉米品种在不同生态区的干物质积累、转运与分配特征  

Characteristics of Dry Matter Accumulation,Transportation and Distribution of Maize Varieties Differing in Maturities in Different Ecological Zones

作　　者：钱春荣[1] 王荣焕[2] 于洋[1] 徐田军[2] 宫秀杰[1] 郝玉波[1] 姜宇博[1] 李梁[1] 吕国依[1] 杨忠良[3] 赵久然[2] QIAN Chun-rong;WANG Rong-huan;YU Yang;XU Tian-jun;GONG Xiu-jie;HAO Yu-bo;JIANG Yu-bo;LI Liang;LÜ Guo-yi;YANG Zhong-liang;ZHAO Jiu-ran(Institute of Crop Cultivation and Farming,Heilongjiang Academy of Agricultural Sciences/Scientific Observing and Experimental Station of Crop Cultivation in Northeast China,Ministry of Agriculture,Harbin 150028;Maize Research Center,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097;Institute of Biotechnology,Heilongjiang Academy of Agricultural Sciences,Harbin 150028,China)

机构地区：[1]黑龙江省农业科学院耕作栽培研究所/农业农村部东北地区作物栽培科学观测实验站,哈尔滨150028 [2]北京市农林科学院玉米研究中心,北京100097 [3]黑龙江省农业科学院生物技术研究所,哈尔滨150028

出　　处：《玉米科学》2021年第2期60-68,共9页Journal of Maize Sciences

基　　金：国家玉米产业技术体系项目(CARS-02-34);黑龙江省杰出青年基金项目(JC2017008);黑龙江省应用技术研究与开发计划重大项目(GA18B101)。

摘　　要：以不同熟期的9个玉米品种为试验材料,2014、2015年在哈尔滨和北京同步开展试验,研究不同熟期玉米品种在不同生态区的干物质积累、转运和分配特征。结果表明,不同熟期玉米品种的干物质积累量、花前、花后干物质积累率及产量在不同生态区之间、品种间存在显著或极显著差异,并存在生态区、品种、年际间的显著互作效应。玉米各器官的干物质转运在不同生态区间存在显著差异,在哈尔滨生态区,茎和鞘没有干物质转运输出,只有叶片干物质转运输出;北京生态区茎、鞘和叶片均有干物质转运输出。对比两个生态区叶片转运率,哈尔滨生态区比北京高6个百分点,叶片对子粒的贡献率哈尔滨比北京高1.8个百分点。Nine maize varieties differing in maturity were used as experimental materials,and experiments were conducted in Harbin and Beijing in 2014 and 2015 to study the dry matter accumulation,transport,and distri⁃bution characteristics.The results showed that the dry matter accumulation,the dry matter accumulation rate before and after silking and the yield of maize varieties had significant or extremely significant differences among different ecotypes and cultivars,and there were significant interaction effects among ecotypes,cultivars and years.The dry matter transport of maize organs was significantly different in different ecological intervals.In Harbin ecological ar⁃ea,there was no transfer and output of stem and sheath dry matter,and only leaf dry matter showed as transfer and output.The dry matter of stem,sheath and leaf in Beijing ecological area is transported and exported.Compared with the two ecological zones,the leaf dry matter transfer rate in Harbin ecological zone was 6 percentage points higher than that in Beijing,and the contribution rate of leaves to grains in Harbin was 1.8 percentage points higher than that in Beijing.

关 键 词：玉米 干物质 积累 转运 分配 

分 类 号：S513.01[农业科学—作物学]