不同品种不结球白菜高通量表型特征分析

High-throughput phenotypic analysis of different non-heading Chinese cabbage varieties

以5种不结球白菜品种为研究对象,利用德国Lemne Tec公司Scanalyzer 3D成像仪器获取植株不同时间和不同角度照片,通过测定植株的各表型指标,探究不同品种不结球白菜的光合能力。结果表明:播种后第24天时,‘新夏青5号’的开展面积及黄酮指数最大,分别为10 435 mm~2、0.51,‘海青2号’的紧密度、2—3级含水量、叶绿素指数最大,分别为0.72、99.54%、25.76,‘植润988’氮平衡指数最大,为63.34;在播种后第31天时,‘新夏青5号’的开展面积最大,为24 597 mm~2,‘海青2号’的紧密度、3—5级含水量、叶绿素指数、氮平衡指数最大,分别为0.76、99.88%、26.09、64.04,‘紫衣’类黄酮指数最大,为0.63;在播种后第38天时,‘紫衣’的开展面积最大,为47 134 mm~2,‘海青2号’的紧密度、2—3级含水量、叶绿素指数、氮平衡指数最大,分别为0.83、97.30%、29.75、67.01,‘新夏青5号’黄酮指数最大,为0.52。研究可为指导不结球白菜生产和育种实践提供精准的依据。

Taking five varieties of non-heading Chinese cabbage as the research object,pictures of plants at different times and different angles were obtained by using the Scanalyzer 3D imaging instrument of LemneTec Company in Germany.Photosynthetic capacity of different varieties of non-heading Chinese cabbage was explored by measuring various phenotypic indicators of plants.The results showed that on the 24 th day after sowing,the development area and flavonoid(Flav) index of’Xinxiaqing No.5’were the largest,which were 10 435 mm~2 and 0.51 respectively;the compactness,2—3 grade water content and chlorophyll(Chl) index of’Haiqing No.2’were the largest,which were 0.72,99.54% and 25.76 respectively;and the nitrogen balance index of’Zhirun 988’was the largest,which was 63.34;At the 31 st day,’Xinxiaqing No.5’had the largest development area of 24 597 mm~2,’Haiqing No.2’had the largest compactness,3—5 grade water content,chlorophyll index,nitrogen balance index,which were 0.76,99.88%,26.09,64.04 respectively,and’Ziyi’had the largest flavonoid(Flav)index,which was 0.63;At the 38 th day,the development area of’Purple Cloth’was the largest,47 134 mm~2,the compactness,2—3 water content,chlorophyll index and nitrogen balance index of ’Haiqing No.2’were the largest,0.83,97.30%,29.75 and 67.01 respectively,and the flavonoid index of’ Xinxiaqing No.5’ was the largest,0.52.The research can provide accurate basis for guiding the production and breeding practice of nonheading Chinese cabbage.