冀西北半干旱补灌春玉米超高产源库特征研究  

Yield Characteristics on Spring Maize with Super-high Yield in Irrigated Semiarid Zone

作　　者：吕爱枝[1] 曹熙敏[1] 章彦俊 丁成方[1] 王晓波[3] 王美云[3] 赵明[3] 

机构地区：[1]河北北方学院农业科学系,河北张家口075000 [2]张家口市下花园区农业技术推广站,河北张家口075300 [3]中国农业科学院作物与种质资源研究所,北京100081

出　　处：《玉米科学》2011年第4期80-83,共4页Journal of Maize Sciences

基　　金：国家"十一五"科技支撑计划"粮食丰产科技工程"项目(2006BAD02A13)

摘　　要：以郑单958和登海601为材料,研究冀西北半干旱补罐区超高产玉米的源库特征。结果表明,登海601玉米生育期长,叶面积和叶面积指数大,叶源和茎鞘的干物质积累量大,源生产能力高;郑单958表现相对登海601较差。登海601的产量达到18 474 kg/hm2,产量构成因子的表现突出,其单位穗数为91 800穗/hm2,穗粒数为528粒/穗,千粒重为384.75 g,粒叶比达到0.23 kg/m2,源库能协调发展。郑单958单位面积穗数高,穗粒数低,群体总粒数偏低,千粒重也低,产量未突破15 000 kg/hm2。Zhangdan958 and Denghai601 were used as materials in order to study source-sink characteristics of super-high yield maize. The result indicated that Denghai601 have the longer growing peroid. Its leaf area index is the largest. Its dry weight of leaf- source and stalk are heavier Zhangdan958. Yield of Denghai601 is 18 474 kg/ha. Number of ears per hectare is 91 800 ears/ha. Grain number per ear is 528 grains/ear. Thousand grains weight is 384.75 g. The grain-leaf ratio of Denghai601 is 0.23 kg/m^2. All of these characteristics are worse than Denghai601. Yield of Zhangdan958 is less than 15 000 kg/ha.

关 键 词：玉米 源库特征 超高产 

分 类 号：S513.01[农业科学—作物学]