春夏秋大豆共生固氮活性的综合等级指数评价  

EVALUATION ON NITROGEN FIXATION ACTIVITIES AMONG SPRING,SUMMER AND AUTUM SOYBEANS BY A OVERALL RANKING INDEX

作　　者：徐巧珍[1] 张学江[1] 李志玉[1] 江木兰[1] 

机构地区：[1]中国农业科学院油料作物研究所

出　　处：《中国油料》1994年第3期38-39,49,共3页

摘　　要：在田间自然条件下，对我国６３份春、夏、秋大豆种质材料共生固氮活性的综合等级指数进行了评价。大豆结瘤、固氮能力的顺序为夏＞秋、春．综合等级指数的变异范围为—１．５０—０．５５．筛选出了５份固氮比率６０．８％—８１．３％、综合等级指数大于０．４１的高固氮种质材料．Under field conditions,the overall ranking index of sixty-three soybean varieties including spring,summer and autum types for their symbiotic nitrogen-fixation was evaluated. The spring soybean germplasm lines had the best abilities of nodulation and nitrogen fixation followed by autum and summer types.The overall ranking indexes ranged from-1.50-0.55.Five genotypes with high N-fixation ability were identified.

关 键 词：大豆 共生固氮 综合等级指数 

分 类 号：S565.103.2[农业科学—作物学]