Evaluation of indigenous and exotic fodder sorghum accessions for fodder-related traits and host resistance to zonate leaf spot disease

Plant Genetic Resources Pub Date : 2024-03-20 DOI:10.1017/s1479262124000078

Indu I., Maneet Rana, Mahesha H. S., Nilamani Dikshit, Rajesh Kumar Singhal, Bhargavi H. A., Keerthi M. C., Sultan Singh, Dinesh Joshi, Shahid Ahmed

{"title":"Evaluation of indigenous and exotic fodder sorghum accessions for fodder-related traits and host resistance to zonate leaf spot disease","authors":"Indu I., Maneet Rana, Mahesha H. S., Nilamani Dikshit, Rajesh Kumar Singhal, Bhargavi H. A., Keerthi M. C., Sultan Singh, Dinesh Joshi, Shahid Ahmed","doi":"10.1017/s1479262124000078","DOIUrl":null,"url":null,"abstract":"A total of 108 diverse sorghum (Sorghum bicolor) accessions were characterized for quantitative and qualitative fodder-related traits and zonate leaf spot (ZLS) (Gloeocercospora sorghi) disease during two successive wet seasons of 2019 and 2020 in augmented randomized block design. The Shannon's diversity index and analysis of variance showed the existence of significant variability among qualitative and quantitative traits. K-mean clustering showed strong relationship between green fodder yield (GFY) and other yield-contributing traits. The dendrogram constructed based on morphological traits classified accessions into four diverse groups and most of genotype fall under cluster II. The principal component analysis bi-plot analysis showed a total variation of 68.96%, where GFY, stem weight per plant, panicle length and dry matter yield (DMY) contributed significantly. From the experimental results, three sorghum genotypes viz., IG-03-424, IG-01-436 and IG-03-438 were identified as promising for higher GFY (808.66 g/plant) and DMY (238.0 g/plant), respectively. Further, based on disease reactions under natural condition, five genotypes viz., EC-512397, EC512393, EC512394, EC512399 and IG-02-437 were identified as potential donor for resistance to ZLS disease. These selected lines could be used as promising sources for high biomass and disease resistance in forage sorghum breeding programme.","PeriodicalId":20188,"journal":{"name":"Plant Genetic Resources","volume":"19 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plant Genetic Resources","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/s1479262124000078","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

A total of 108 diverse sorghum (Sorghum bicolor) accessions were characterized for quantitative and qualitative fodder-related traits and zonate leaf spot (ZLS) (Gloeocercospora sorghi) disease during two successive wet seasons of 2019 and 2020 in augmented randomized block design. The Shannon's diversity index and analysis of variance showed the existence of significant variability among qualitative and quantitative traits. K-mean clustering showed strong relationship between green fodder yield (GFY) and other yield-contributing traits. The dendrogram constructed based on morphological traits classified accessions into four diverse groups and most of genotype fall under cluster II. The principal component analysis bi-plot analysis showed a total variation of 68.96%, where GFY, stem weight per plant, panicle length and dry matter yield (DMY) contributed significantly. From the experimental results, three sorghum genotypes viz., IG-03-424, IG-01-436 and IG-03-438 were identified as promising for higher GFY (808.66 g/plant) and DMY (238.0 g/plant), respectively. Further, based on disease reactions under natural condition, five genotypes viz., EC-512397, EC512393, EC512394, EC512399 and IG-02-437 were identified as potential donor for resistance to ZLS disease. These selected lines could be used as promising sources for high biomass and disease resistance in forage sorghum breeding programme.

查看原文本刊更多论文

评估本地和外来饲料高粱品种的饲料相关性状以及宿主对带状叶斑病的抗性

在 2019 年和 2020 年连续两个雨季期间，采用扩增随机区组设计，对 108 个不同的高粱（Sorghum bicolor）品种进行了饲料相关性状和带状叶斑病（ZLS）（Gloeocercospora sorghi）的定量和定性分析。香农多样性指数和方差分析结果表明，定性和定量性状之间存在显著差异。K均值聚类显示青饲料产量（GFY）与其他产量贡献性状之间存在密切关系。根据形态性状构建的树枝图将品种分为四个不同的组，大多数基因型属于第 II 组。主成分分析双图分析表明，总变异率为 68.96%，其中 GFY、单株茎重、圆锥花序长度和干物质产量（DMY）贡献显著。实验结果表明，IG-03-424、IG-01-436 和 IG-03-438 这三个高粱基因型有望分别获得较高的 GFY（808.66 克/株）和 DMY（238.0 克/株）。此外，根据自然条件下的病害反应，确定了五个基因型，即 EC-512397、EC512393、EC512394、EC512399 和 IG-02-437 为抗 ZLS 病害的潜在供体。这些被选中的品系可作为饲料高粱育种计划中高生物量和抗病性的潜在来源。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Plant Genetic Resources

自引率

0.00%

发文量