中国农业科技导报 ›› 2022, Vol. 24 ›› Issue (7): 46-57.DOI: 10.13304/j.nykjdb.2021.1086

• 生物技术 生命科学 • 上一篇    下一篇

陆地棉花铃期抗旱指标筛选及评价

闫成川1(), 曾庆涛2(), 陈琴1(), 付锦程1, 王婷伟1, 陈全家1, 曲延英1()   

  1. 1.新疆农业大学农学院, 棉花教育部工程研究中心, 乌鲁木齐 830052
    2.新疆生产建设兵团第七师农业科学研究所, 新疆 奎屯 833200
  • 收稿日期:2021-12-22 接受日期:2022-04-12 出版日期:2022-07-15 发布日期:2022-08-15
  • 通讯作者: 陈琴,曲延英
  • 作者简介:闫成川 E-mail:863053820@qq.com
    曾庆涛 E-mail:147611116@qq.com第一联系人:闫成川和曾庆涛为共同第一作者。
  • 基金资助:
    新疆维吾尔自治区高校科研计划自然科学青年项目(XJEDU2021Y020);中国博士后科学基金面上项目(2021M693901);综优机采棉品种及量质协同技术创新团队项目(2021D14007)

Screening and Evaluation of Drought Resistance Indicators at Flowering and Boll Stage of Upland Cotton

Chengchuan YAN1(), Qingtao ZENG2(), Qin CHEN1(), Jincheng FU1, Tingwei WANG1, Quanjia CHEN1, Yanying QU1()   

  1. 1.Engineering Research Centre of Cotton,Ministry of Education; College of Agriculture,Xinjiang Agricultural University,Urumqi 830052,China
    2.The 7th Division of Agricultural Sciences Institute,Xinjiang Production and Construction Corps,Xinjiang Kuitun 833200,China
  • Received:2021-12-22 Accepted:2022-04-12 Online:2022-07-15 Published:2022-08-15
  • Contact: Qin CHEN,Yanying QU

摘要:

为分析棉花资源的抗旱性,以253份陆地棉资源为试验材料,于花铃期进行干旱胁迫处理,测定包括光合作用、农艺性状和产量性状相关的15个指标,通过主成分分析、相关性分析、抗旱隶属函数分析及聚类分析,对其进行抗旱性综合评价及抗旱指标筛选。以抗旱性度量值(D值)为参数,可将上述资源分为强抗旱、抗旱、耐旱、较敏感、敏旱5类。其中,强抗旱材料包括JK625、库车7946、肯尼亚2号等14份;敏旱材料包括HT-176、川R128、鄂棉18号等19份。有效铃数、气孔导度、蒸腾速率、叶绿素相对值、有效果枝数、皮棉重和株高较其他指标更为敏感,可作为花铃期抗旱性鉴定的关键指标;另外,叶绿素相对值、株高、气孔导度和蒸腾速率可作为花铃期抗旱的立测指标。

关键词: 棉花, 抗旱性, 花铃期, 抗旱指标

Abstract:

In order to analyze the drought resistance of cotton resources, 253 upland cotton resources were used as experimental materials for drought stress treatment at flowering and bolling stages. 15 indexes related to photosynthesis, agronomic traits and yield traits were determined. Through principal component analysis, correlation analysis, drought resistance membership function analysis and cluster analysis, the comprehensive evaluation of drought resistance and drought resistance index screening of 253 upland cotton resources were conducted. With drought resistance measurement value (D value) as the parameter, the above resources could be divided into 5 categories including strong drought resistance, drought resistance, drought resistance, relatively sensitive and sensitive drought. Among them, 14 materials with strong drought resistance included JK625, Kuche 7946 and Kenya 2, drought-sensitive materials included HT-176, Chuan R128, Emian 18, etc.. Effective boll number, stomatal conductance, transpiration rate, chlorophyll relative value, effective branch number, lint weight and plant height were more sensitive to dronght than other indexes, which could be used as key indexes for drought resistance identification at flowering and boll stage. In addition, the relative chlorophyll value, plant height, stomatal conductance and transpiration rate could be used as the vertical indexes for drought resistance at flowering and boll stage.

Key words: cotton, drought resistance, flowering and boll period, drought resistance index

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