郑单958产量的源库制约分析  

Analysis on Restriction of Source and Sink to Yield of Maize Hybrid Zhengdan 958

作　　者：姚国旗[1] 曹冰[1] 单娟[1] 邓广成 李翠兰[1] 韩志景[1] 汪黎明[1] 

机构地区：[1]山东省农业科学院玉米研究所/农业部黄淮海北部玉米生物学与遗传育种重点实验室,山东济南250100 [2]山东省六一农场,山东齐河251109

出　　处：《山东农业科学》2014年第2期36-40,共5页Shandong Agricultural Sciences

基　　金：国家转基因重大专项"抗逆转基因玉米新品种培育"(2011ZX08003);山东省自然科学基金项目(ZR2009DM007)

摘　　要：本研究从源库理论角度分析了郑单958在6.0、6.7、7.3万株/hm23个种植密度水平下的自身产量限制因子,指出黄淮海地区在6.75万株/hm2或者更高种植密度水平上进一步改良郑单958是有意义的;在本试验所设的密度水平上,郑单958自身产量限制因子均为源不足。The yield limiting factors of Zhengdan 958 were studied under 3 planting densities of 6 .0 ＆#215; 104 , 6.7 ＆#215;104 and 7.3 ＆#215;104 plants per hectare using source -sink theory.The results showed that it was pos-sible to further improve Zhengdan 958 under the density of 6.75 ＆#215;104 plants per hectare or more in Yellow and Huai River valley .The yield limiting factors of Zhengdan 958 under the studied planting densities were all deficiency of source .

关 键 词：玉米 郑单958 产量限制因子 源库 Zhengdan 958 

分 类 号：S513.03[农业科学—作物学]