新疆农业科学 ›› 2025, Vol. 62 ›› Issue (7): 1586-1594.DOI: 10.6048/j.issn.1001-4330.2025.07.003

• 粮食和经济作物专栏 • 上一篇    下一篇

春小麦种质资源耐热性筛选及鉴定

王昊博1,2(), 夏建强2, 张鹏鹏2, 金永伟1,2, 张跃强2(), 耿洪伟1()   

  1. 1.新疆农业大学农学院, 乌鲁木齐 830052
    2.新疆维吾尔自治区农业科学院作物研究所/农业农村部荒漠绿洲作物生理生态与耕作重点实验室/农业农村部西北绿洲节水农业重点实验室, 乌鲁木齐 830091
  • 收稿日期:2024-12-14 出版日期:2025-07-20 发布日期:2025-09-05
  • 通信作者: 张跃强(1976-),男,新疆人,硕士生导师,研究方向为小麦遗传育种,(E-mail)zhangyqyhm@163.com;
    耿洪伟(1978-),男,新疆人,教授,硕士生导师,研究方向为小麦遗传育种,(E-mail)hw-geng@163.com
  • 作者简介:王昊博(1998-),男,黑龙江人,硕士研究生,研究方向为小麦遗传育种,(E-mail)1257480371@qq.com
  • 基金资助:
    小麦灌浆期耐高温相关性状的全基因组关联分析(xjnkq-2023029);人工合成小麦及其衍生系抗旱耐热基因发掘与利用(32061143040);新疆维吾尔自治区小麦产业技术体系(AJAR-01-05)

Screening and identification of spring wheat germplasm resources for heat resistance

WANG Haobo1,2(), XIA Jianqiang2, ZHANG Pengpeng2, JIN Yongwei1,2, ZHANG Yueqiang2(), GENG Hongwei1()   

  1. 1. College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China
    2. Key Laboratory of Desert Oasis Crop Physiology, Ecology and Tillage, Ministry of Agriculture and Rural Areas/ Key Laboratory of Northwest Oasis Water-saving Agriculture, Ministry of Agriculture and Rural Affairs/Crop Research Institute, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Received:2024-12-14 Published:2025-07-20 Online:2025-09-05
  • Supported by:
    Genome-wide Association Analysis of Traits Related to Heat Tolerance in Wheat at Filling Stage(xjnkq-2023029);Discovery and Utilization of Synthetic Drought and Heat Tolerance Genes in Wheat and Its Derived Lines(32061143040);Wheat Industry Technology System of Xinjiang Uygur Autonomous Region(AJAR-01-05)

摘要:

【目的】研究小麦高温胁迫处理对其农艺性状及生理性状的影响,筛选优质耐热种质资源,为耐热小麦品种的选育提供科学依据。【方法】分析2022~2023年354份春小麦材料在正常及高温胁迫条件下的农艺性状,对多性状的耐热系数进行主成分分析并鉴定种质资源的耐热性。【结果】高温胁迫对小区产量、千粒重、容重、株高、穗长、总小穗数、SPADCTNDVI共9个性状均产生显著影响(P<0.05),其中小区产量的耐热系数与容重呈显著正相关,和株高显著负相关;总小穗数与株高和穗长均呈显著正相关;NDVICT呈显著正相关。通过隶属函数法计算出各品系的综合耐热指数H值并进行聚类分析,鉴定出16个耐热型材料(HT),127个中等耐热型材料(MHT),170个中等热敏感型材料(MHS)以及41个热敏感型材料(HS)。【结论】高温胁迫严重影响其生长、发育和产量,筛选出GCP-9643、宁春20号等耐热型材料10个,以及GCP-9670、sw153等热敏感型材料10个,可作为小麦耐热育种的优良遗传资源。

关键词: 小麦; 高温胁迫; 性状; 耐热系数; 耐热材料

Abstract:

【Objective】 The objective of this study is twofold: firstly, to examine the impact of elevated temperature stress treatments on the agronomic and physiological characteristics of wheat; and secondly, to identify high-quality, heat-tolerant germplasm resources. 【Methods】 In this study, we analyzed the agronomic traits of 354 spring wheat materials under normal and high temperature stress conditions in 2022 and 2023, performed principal component analysis of heat tolerance coefficients for multiple traits, and identified the heat tolerance of germplasm resources to provide a scientific basis for the selection and breeding of heat-tolerant wheat varieties. 【Results】 High-temperature stress significantly affected (P<0.05) nine characters, including plot yield, thousand grain weight, tolerance, plant height, spike length, total spikelets, SPAD, CT and NDVI, among which heat tolerance coefficients of plot yield were significantly positively correlated with tolerance and negatively correlated with plant height; total spikelets were significantly positively correlated with both plant height and spike length; and NDVI was significantly positively correlated with CT. The composite heat tolerance index H value of each line was calculated by the subordinate function method and analyzed by clustering, and 16 heat tolerant (HT), 127 moderately heat tolerant (MHT), 170 moderately heat sensitive (MHS) and 41 heat sensitive (HS) materials were identified. 【Conclusion】 High temperature stress seriously affects their growth, development and yield. Finally, 10 heat-tolerant materials, such as GCP-9643 and Ningchun 20, and 10 heat-sensitive materials, such as GCP-9670 and sw153, are screened out, which can be used as excellent genetic resources for heat-tolerant wheat breeding and provide the basic materials for creating new wheat varieties with excellent heat-tolerant characteristics.

Key words: wheat; heat stress; character; heat resistance coefficient; heat-resistant material

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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