西藏自治区大白菜耐抽薹特性评价  

Characteristics Evaluation of Bolting Resistance of Chinese Cabbage(Brassica rapa ssp.pekinensis) in Tibet

作　　者：赵艳宁 高彪 ZHAO Yanning;GAO Biao(Institute of Vegetable,Tibet Academy of Agriculture and Animal Husbandry Sciences,Tibet Lhasa 850032,China)

机构地区：[1]西藏自治区农牧科学院蔬菜研究所,西藏拉萨850032

出　　处：《西藏农业科技》2022年第4期25-28,共4页Tibet Journal of Agricultural Sciences

基　　金：西藏自治区科技计划项目(XZ202201ZY0006N);西藏农牧科学院蔬菜所科研发展基金项目(KYFZJJ-2021-05)。

摘　　要：为探讨西藏自治区大白菜耐抽薹性状及选育优良耐抽薹白菜种质资源,将7份西藏自治区农牧科学院蔬菜研究所选育的大白菜品种(系)为材料,观察生育期内形态特征,统计不同品种(系)的刺毛、检测叶绿素含量、干物质积累情况及抽薹率等指标,对西藏大白菜的耐抽薹特性进行评价。结果表明,可将7份大白菜品种(系)被划分为3个等级,依次为耐抽薹(“藏育1号”ZY、344)、中间型(A12、211、E2和400)、不耐抽薹(SD3);耐抽薹品种(系)表现为匍匐生长,叶片刺毛较多且刺毛较硬,结球前期干物质积累较慢,叶绿素含量较高;中间型和不耐抽薹品种(系)则为半直立生长,结球前期干物质积累较快,叶绿素含量也较低。综合评价得出,SD3的耐抽薹性最差,藏育1号ZY和344的耐抽薹最强,这些材料可作为大白菜耐抽薹研究的重要种质资源。In order to exploring the bolting-resistant characteristics of Chinese cabbage(Brassica rapa ssp.pekinensis)in Tibet and breeding excellent bolting-resistant Chinese cabbage germplasm resources,7 Chinese cabbage varieties(lines),bred by institute of vegetable in Tibet academy of agriculture and animal husbandry sciences,were used as the materials.We observed its morphological characteristics during the growth period,gathered statistics the contents of spiny hairs,detected the chlorophyll content,dry matter accumulation and bolting rate and other indicators of different varieties(lines)to evaluate the bolting resistance of Chinese cabbage in Tibet.The results showed that the 7 Chinese cabbage varieties(lines)were divided into three grades,which were bolting-resistant(ZY and 344),intermediate type(A12,211,E2 and 400),and bolting-intolerant(SD3).The bolting-resistant varieties(lines)generally showed prostrate growth habit,with more hard leaf spiny hair,and slower dry matter accumulation and higher chlorophyll content.While the intermediate type and bolting-intolerant varieties(lines)were semi-erect growth and accumulated dry matter faster and lower chlorophyll content in the early stage of heading.The comprehensive evaluation showed that SD3 had the worst bolting resistance,Zangyu-1(ZY)and 344 had the strongest bolting resistance.These materials could be used as important germplasm resources for future research on bolting resistance of Chinese cabbage in Tibet.

关 键 词：大白菜 耐抽薹 西藏 刺毛 抽薹率 

分 类 号：S634.1[农业科学—蔬菜学]