西藏栽培油菜单株粒重优良种质资源分析  

Analysis of Single Plant Seed Yield of Cultured Rapeseed Germplasms in Tibet

作　　者：昌西[1] 王建林[1] 何燕[1] 卓嘎[1] 

机构地区：[1]西藏大学农牧学院植物科学技术系,西藏林芝860000

出　　处：《西北农业学报》2008年第5期186-189,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家自然科学基金项目"西藏野生油菜种质资源多样性及其演化研究"(30360055);教育部"新世纪优秀人才支持计划"项目(NCHT-05-0826);教育部科学技术研究重点项目"西藏油菜种质资源评价;利用与数据库建立"(206141)联合资助

摘　　要：对西藏栽培油菜,特别是白菜型油菜和芥菜型油菜单株粒重种质资源进行了研究与鉴定。结果表明全区栽培油菜(白菜型和芥菜型油菜)随着单株粒重的增高,所占的比重随之降低;在白菜型和芥菜型的单株粒重种质资源的分布中,白菜型油菜单株粒重种质资源所占的比重随着单株粒重等级的增高而逐渐降低,芥菜型油菜单株粒重较高的种质资源占的比重较高。西藏栽培油菜单株粒重种质资源中,芥菜型油菜单株粒重高的优良种质资源比白菜型丰富。从全区油菜主要种植地来说,西藏日喀则和山南地区油菜的变异最为丰富。The collected rapeseed germplasms cultivated in Tibet,mainly Brassica campestric and Brassica juncea,were assessed based on their seed yield per plant.The results showed that the diversity of seed yield per plant was rich among these germplasms.Totally,percentage of germplasm was decrease when the yield increased.In Brassica campestric,the distribution of germplasm also tended to decrease when yield increase,while in Brassica juncea,the percentage of germplasms with higher seed yield per plant was much higher.Germplasm of higher yield in Brassica juncea was richer than in Brassica campestric.In the six main rapeseed-cultivated regions,Rikaze and Shannan had most rich and diverse rapeseed germplasms.

关 键 词：栽培油菜 单株粒重 种质资源 西藏 

分 类 号：S565.4[农业科学—作物学]