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中国农学通报

中国农学通报 ›› 2022, Vol. 38 ›› Issue (30): 21-28.doi: 10.11924/j.issn.1000-6850.casb2022-0019

所属专题： 生物技术； 资源与环境； 园艺

• 农学·农业基础科学 • 上一篇    下一篇

24份甜高粱主要农艺性状与生物产量综合分析

罗巍1(), 周伟1, 王振国2, 李岩2, 宇闻昊1, 杨志强1, 余忠浩1, 李资文1, 周亚星1()   

  1. 1内蒙古民族大学农学院科尔沁沙地生态农业国家民委重点实验室,内蒙古通辽 028000
    2通辽市农牧科学研究所,内蒙古通辽 028000
  • 收稿日期:2022-01-06 修回日期:2022-05-02 出版日期:2022-10-25 发布日期:2022-10-27
  • 通讯作者: 周亚星
  • 作者简介:罗巍,女,1995年出生,内蒙古通辽人,在读硕士研究生,研究方向：作物遗传改良与种质创新。通信地址：028000 内蒙古自治区通辽市科尔沁区西拉木伦大街西996号,内蒙古民族大学农学院,Tel：17647556385,E-mail： 1915004531@qq.com。
  • 基金资助:
    内蒙古自治区高等学校青年科技英才项目(NJYT22052);内蒙古自治区科技计划项目“优质高粱种质资源创新及新品种选育”(2020GG0102);内蒙古自然科学基金项目“高丹草茎、叶含糖量性状的QTL定位分析”(2019MS03076);国家民委高等教育教学改革研究项目“新农科建设背景下农学专业创新人才培养教学体系研究”(21087);内蒙古民族大学科学研究项目“科技考古在西辽河流域农业发展史中的应用研究”(NMDYB18036);内蒙古民族大学博士科研启动基金项目“西辽河流域特色农作物品种演变研究”(BS621);2022年度自治区直属高校基本科研业务费项目“西辽河平原耐盐碱优质高粱种质鉴定研究”;内蒙古自治区饲用作物工程技术研究中心开放基金项目“高丹草新品种选育”(MDK2016023);科尔沁沙地生态农业国家民委重点实验室开放基金项目(MDK2022023)

Twenty-four Sweet Sorghum Materials: Comprehensive Analysis of Main Agronomic Traits and Biological Yield

LUO Wei1(), ZHOU Wei1, WANG Zhenguo2, LI Yan2, YU Wenhao1, YANG Zhiqiang1, YU Zhonghao1, LI Ziwen1, ZHOU Yaxing1()   

  1. 1Key Laboratory of the State Ethnic Affairs Commission of Keerqin Sandy Ecological Agriculture, College of Agronomy, Inner Mongolia Minzu University, Tongliao, Inner Mongolia 028000
    2Tongliao Academy of Agricultural Science, Tongliao, Inner Mongolia 028000
  • Received:2022-01-06 Revised:2022-05-02 Online:2022-10-25 Published:2022-10-27
  • Contact: ZHOU Yaxing

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摘要：

为了探究甜高粱主要农艺性状与生物产量的关系,筛选出综合表现优良的甜高粱材料,进而为今后甜高粱育种提供理论依据。以24份甜高粱杂交组合为试材,对其主要农艺性状及生物产量进行灰色关联度分析、相关性分析、通径分析以及主成分分析。结果表明：主穗长度和穗粒数的变异系数较大;灰色关联度结果表明糖锤度与生物产量关联度最大。相关分析表明株高与茎秆长度,主穗长度与千粒重达到极显著正相关;通径分析结果表明主穗长度、茎秆长度、千粒重、榨汁率、糖锤度本身的直接效应对甜高粱的生物产量有正向作用。主成分分析得出株高、茎秆长度、穗粒数、糖锤度、榨汁率、主穗长度、生物产量这7个性状相对品种的综合表现影响更大。因此,在选育甜高粱杂交种时,要注重对糖锤度、茎粗、茎秆长度的选择,同时兼顾对株高、穗粒数、主穗长度、榨汁率、千粒重的选择。

关键词: 甜高粱, 农艺性状, 灰色关联度分析, 通径分析, 主成分分析

Abstract:

The aims are to investigate the relationship between major agronomic traits and biological yield of sweet sorghum, select sweet sorghum materials with excellent overall performance, and provide a theoretical basis for sweet sorghum breeding in the future. The main agronomic traits and biological yield of 24 sweet sorghum cross combinations were subjected to grey correlation degree analysis, correlation analysis, path analysis and principal component analysis. The results showed that the variation coefficient of main spike length and grain number per spike was large; and the grey correlation degree results showed that the correlation degree between sugar brix and biological yield was the largest. Correlation analysis showed that plant height and stalk length, main spike length and 1000-grain weight had highly significantly positive correlations. The path analysis results showed that the direct effects of main panicle length, stem length, 1000-grain weight, juice extraction rate and sugar brix on the biological yield of sweet sorghum were positive. Principal component analysis showed that the seven traits of plant height, stalk length, grain number per spike, sugar brix, juice extraction rate, main spike length, and biological yield were more influential to the overall performance of the varieties. Therefore, in the selection of sweet sorghum hybrids, we should focus on sugar brix, stem thickness and stalk length, while take into account the height of the plant, number of grains per spike, length of the main spike, juice extraction rate, and 1000-grain weight.

Key words: sweet sorghum, agronomic traits, grey correlation degree analysis, path analysis, principal component analysis

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