花铃期干旱胁迫对不同棉花品种光合作用影响

doi:10.6048/j.issn.1001-4330.2017.12.005

新疆农业科学 ›› 2017, Vol. 54 ›› Issue (12): 2190-2197.DOI: 10.6048/j.issn.1001-4330.2017.12.005

花铃期干旱胁迫对不同棉花品种光合作用影响

郑巨云¹, 王俊铎¹, 龚照龙¹, 梁亚军¹, 艾先涛¹, 郭江平¹, 段静波², 莫明¹, 李雪源¹

1.新疆农业科学院经济作物研究所,乌鲁木齐 830091;
2.新疆农业大学科学技术学院,乌鲁木齐 830052

收稿日期:2017-09-11 出版日期:2017-12-25 发布日期:2018-01-29
通信作者: 李雪源(1964-),男,辽宁沈阳人,研究员,研究方向为陆地棉育种与高产栽培,(E-mail)xjmh2338@163.com
作者简介:郑巨云(1981-),男,河北怀安人,副研究员,博士研究生,研究方向为陆地棉遗传育种,(E-mail)zjypp8866@126.com
基金资助:
新疆维吾尔自治区公益性科研院所基本科研业务经费项目(KY2017078);转基因耐旱耐盐碱棉花新品种培育(2017ZX08005004-009)

Photosynthetic Characteristics of Different Cotton Varity under Drought Stress during Flowering and Boll-setting Stage

ZHENG Ju-yun¹, WANG Jun-duo¹, GONG Zhao-long¹, LIANG Ya-jun¹, AI Xian-tao¹, GUO Jiang-ping¹, DUAN Jin-bo², MO Ming¹, LI Xue-yuan¹

1.Research Institute of Economic Crops of Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
2.College of Science and Technology,Xinjiang Agricultural University Urumqi 830052,China

Received:2017-09-11 Online:2017-12-25 Published:2018-01-29
Correspondence author: LI Xue-yuan(1964-),male,native place: Liaoyang,Xinjiang. Professor, deputy director, research field: Cotton breeding and high yield cultivation.(E-mail)xjmh2338@163.com
Supported by:
Basic scientific research funds of public welfare scientific research institutes in Xinjiang Uygur Autonomous Region (KY2017078)and Cultivation of new transgenic cotton varieties with drought-resistance and salt-tolerance. (2017ZX08005004-009)

摘要/Abstract

摘要： 【目的】研究干旱胁迫条件及对照下不同棉花品种之间光合性状差异,明确干旱胁迫对棉花光合性状的影响,筛选抗旱能力强的品种,为抗旱育种提供理论支持。【方法】以16N2、16N3、16N4、16N5、源棉6号共5个自育品种系为试验材料,在干旱胁迫与正常灌水两个环境下对棉花花铃期净光合速率、蒸腾速率、气孔导度、光合水分利用率等光合性状指标进行测量,研究其差异性及相关性。【结果】与正常灌水条件下相比,5份材料在干旱胁迫下除光合水分利用率,其它光合生理指标均呈下降趋势,不同品种抗旱系数存在不同差异,其中16N2光合速率、气孔导度、蒸腾速率、水分利用率抗旱系数均较高,16N2具有较强耐旱性。【结论】干旱胁迫处理会降低蒸腾速率、气孔导度及光合速率等光合生理指标,但可以提高光合水分利用率。16N2花铃期光合性状抗旱系数最高,抗旱能力较强,可以作为抗旱育种的中间材料,为抗旱聚合育种奠定基础。

关键词: 棉花; 干旱胁迫; 光合作用; 抗旱系数

Abstract: 【Objective】 The aims of this study is to reveal the effects of drought stress on photosynthetic characteristics of cotton and provide theoretical support for drought resistant breeding of cotton by studying the differences of photosynthetic characteristics among different cotton cultivars under drought stress.【Method】16N2, 16N3, 16N4, 16N5 and Yuanmian 6, a total of 5 varieties were taken test materials to measure the photosynthetic traits of the net photosynthetic rate, transpiration rate, stomatal conductance and photosynthesis and water utilization rate and study the difference and correlation between them both under the drought stress and normal irrigation conditions.【Result】The result showed that the photosynthetic characteristics of 5 cultivars decreased compared with the irrigation conditions, the drought resistance coefficient of cultivars was different in different varieties, of which photosynthetic rate, stomatal conductance, transpiration rate and water use efficiency of 16N2 were higher than those of others.【Conclusion】Drought stress treatment could decrease photosynthetic physiological indexes such as transpiration rate, stomatal conductance and photosynthetic rate except photosynthetic water use efficiency. Through comparative analysis of the varieties, it has been found that the variety with the highest drought resistance coefficient and strong drought resistance was 16N2, which could be used as the intermediate material for drought resistance breeding. This research has also laid a foundation for drought resistant pyramiding breeding.

Key words: cotton; drought stress; photosynthesis; drought resistance coefficient

中图分类号:

S562

郑巨云, 王俊铎, 龚照龙, 梁亚军, 艾先涛, 郭江平, 段静波, 莫明, 李雪源. 花铃期干旱胁迫对不同棉花品种光合作用影响[J]. 新疆农业科学, 2017, 54(12): 2190-2197.

ZHENG Ju-yun, WANG Jun-duo, GONG Zhao-long, LIANG Ya-jun, AI Xian-tao, GUO Jiang-ping, DUAN Jin-bo, MO Ming, LI Xue-yuan. Photosynthetic Characteristics of Different Cotton Varity under Drought Stress during Flowering and Boll-setting Stage[J]. Xinjiang Agricultural Sciences, 2017, 54(12): 2190-2197.

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花铃期干旱胁迫对不同棉花品种光合作用影响

Photosynthetic Characteristics of Different Cotton Varity under Drought Stress during Flowering and Boll-setting Stage

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