生物学杂志

生物学杂志 ›› 2021, Vol. 38 ›› Issue (3): 83-.doi: 10.3969/j.issn.2095-1736.2021.03.083

• 研究报告 • 上一篇    下一篇

花铃期干旱胁迫对棉花陆海RIL群体光合的影响

  

  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
  • 出版日期:2021-06-18 发布日期:2021-06-21
  • 通讯作者: 陈全家，教授，博士生导师，研究方向为棉花遗传育种，E-mail: chqjia@126.com
  • 作者简介:姜梦辉，硕士研究生，研究方向为棉花遗传育种及抗旱研究，E-mail: 1079297911@qq.com
  • 基金资助:
    转基因生物新品种培育重大专项项目(编号：2016ZX08005-004-009)；新疆农业大学作物学重点学科发展基金项目(编号：XNCKY2018008)

Effects of drought stress on photosynthesis of upland-island RIL population at blossom and boll stage #br#

  1. Cotton Engineering Research Center of ministry of Education, College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China
  • Online:2021-06-18 Published:2021-06-21

摘要： 以陆地棉材料(中07)和海岛棉材料(新海20)构建的F2∶6陆海RIL群体为试验材料，在花铃期采用田间干旱胁迫方法对群体材料进行干旱胁迫处理，通过测定群体材料的光合性状，采用主成分分析、聚类分析和综合抗旱评价体系相结合的方式，对陆海RIL群体材料进行抗旱性鉴定及评价。结果表明：不同棉花材料在花铃期受到干旱胁迫后，各指标反应程度不同，其中A、E、WUE的变化较为明显。通过D值聚类分析，将棉花材料分为4个类群，第Ⅰ类群为强抗旱型，有21份材料；第Ⅱ类群为抗旱型，有7份材料；第Ⅲ类群为干旱敏感型，有26份材料；第Ⅳ类群为干旱极敏感型，有16份材料；并得到群体中比亲本中07抗旱性更强的材料和比亲本新海20抗旱性更敏感的材料。

关键词: 棉花, 陆海RIL群体, 花铃期, 光合特性, 抗旱性评价

Abstract: The F2∶6 upland-island RIL population of upland cotton (Zhong 07) and island cotton (Xinhai 20) was used as the materials, and was treated by a field drought-stress method at the blossom and boll stage. After the measurement of photosynthetic traits, the drought resistance of upland-island RIL population was evaluated through the methods of variance analysis, principal component analysis, cluster analysis and integrated drought assessment system. The results showed that the response degree of each indicator was different in different cotton materials under drought stress at blossom and boll stage, among which, the A, E and WUE showed significant changes. Through D value clustering analysis, the cotton materials were divided into four groups, 21 materials in group Ⅰ with strong drought resistance type, 7 materials in group Ⅱ with drought resistance type, 26 materials in group Ⅲ with drought sensitive type and 16 materials in group Ⅳ with extreme drought sensitive type. Through cluster analysis, the cotton materials of more drought-resistant lines than that of Zhong 07 and more drought-sensitive lines than that of Xinhai 20 were obtained.

Key words: cotton, upland-island RIL population, blossom and boll stage, photosynthetic characteristics, drought resistance evaluation

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