甘蓝型油菜新品系的抗裂角性筛选与相关性状分析  

Screening of pod shatter resistance and analysis of related traits in new lines of Brassica napus L.

作　　者：王转茸 万丽丽 杨光圣[2] 孙玉宏 辛强[2] 洪登峰[2] 高红霞 WANG Zhuan-rong;WAN Li-li;YANG Guang-sheng;SUN Yu-hong;XIN Qiang;HONG Deng-feng;GAO Hong-xia(Wuhan Academy of Agricultural Sciences,Wuhan 430065,China;National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]武汉市农业科学院,武汉430065 [2]华中农业大学国家作物遗传改良重点实验室,武汉430070

出　　处：《湖北农业科学》2019年第24期34-37,42,共5页Hubei Agricultural Sciences

基　　金：中国博士后科学基金面上资助项目（2019M652726）;武汉市农业科学院2019年开放课题项目（KFKT201914）;武汉市农业科学院2018年博士后项目（Bshxm201801）

摘　　要：甘蓝型油菜(Brassica napus L.)的裂角落粒严重影响油菜的产量和机械适收性。利用改进后的随机碰撞法对122份甘蓝型油菜的自交系和杂交组合进行抗裂角性评价,发现抗裂角指数(Shatter resistant index,SRI)大于0.60的品系占4.1%。分析抗裂角指数(SRI)与角果长、宽、果喙的相关性,发现抗裂角指数与角果长和果皮厚呈极显著正相关,且相关系数较高。结合种子的品质性状分析,共筛选了3份品质性状优良且抗裂角性强的甘蓝型油菜新品系早熟圣光168、E-7039和E-7089。The pod shatter of Brassica napus L. seriously affected the yield and mechanical adaptability of rapeseed. 122 hybrids and self-lines of Brassica napus L. were assessed for pod shatter resistance using improved random impact test method.The results showed that the lines which pod shatter resistant index(SRI) was more than 0.60 accounted for 4.1%. By analyzing the correlation between the SRI and the length, width and beak of the pod, it is found that the SRI is significantly positively correlated with the length and thickness of the pod, and the correlation coefficient is high. Combined with the quality analysis traits of the seed, three new varieties of rapeseeds with good quality traits and higher SRI were screened for Zaoshu shengguang 168, E-7039 and E-7089.

关 键 词：甘蓝型油菜(Brassica napus L.) 抗裂角 种子 品质性状 

分 类 号：S565.4[农业科学—作物学]