新疆农业科学 ›› 2019, Vol. 56 ›› Issue (7): 1197-1206.DOI: 10.6048/j.issn.1001-4330.2019.07.003

• 作物遗传育种·种质资源·分子生物学 • 上一篇    下一篇

花铃期遮荫对棉花叶片生理特性的影响

阿布都克尤木·阿不都热孜克1, 王威1, 白玉亭1, 张龑1, 古丽米拉·艾克拜尔2   

  1. 1.新疆农业科学院农作物品种资源研究所,乌鲁木齐 830091;
    2 .新疆农业大学草业与环境科学学院,乌鲁木齐 830052
  • 收稿日期:2019-02-21 出版日期:2019-07-20 发布日期:2019-09-05
  • 通信作者: 古丽米拉·艾克拜尔(1986-),女,新疆伊宁人,实验师,研究方向为生态学,(E-mail)dagulimila@163.com张龑 (1981-),男,新疆石河子人,助理研究员,硕士研究生,研究方向为种质资源,(E-mail)52671248@qq.com
  • 作者简介:阿布都克尤木·阿不都热孜克(1984-),男,新疆泽普人,农艺师,硕士研究生,研究方向为作物栽培学与耕作学,(E-mail)abdkeyoumu@163.com
  • 基金资助:
    农业部畜牧业司项目“农业技术试验示范与服务支持项目”(131721301064072000);新疆农业科学院青年基金项目“遮荫弱光影响棉花生理特性的研究” (xjnkq-2016024)

Effects of Shading on the Physiological Characteristics of Cotton Leaves during Cotton Flower and Boll Formation Periods

Abudoukeyoumu Abudourezike1, WANG Wei1, BAI Yu-ting1, ZHANG Yan1, Gulimila Aikebaier2   

  1. 1 Institute of Crop Germplasm Resources, Xinjiang Academy of Agricultural Sciences, Urumqi 830000, China;
    2, College of Pratacultural and Environmental Sciences, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2019-02-21 Online:2019-07-20 Published:2019-09-05
  • Correspondence author: Gulimila Aikebaier(1986- ),female, native place; Yining, Xinjiang; experimentalist;research field: ecology,(E-mail) dagulimila@163.com
    Zhang Yan(1981- ),male, native place; Shihezi, Xinjiang; research assistant professor; research field: Collection and Innovation of Germplasm Resources,(E-mail) 52671248@qq.com
  • Supported by:
    Supported by the Project of the Animal Husbandry Department of the Ministry of Agriculture "Agricultural Technology Test Demonstration and Service Support Project of Ministry of Agriculture"(131721301064072000)and, Youth Foundation of Xinjiang Academy of Agricultural Sciences"Effects of Shading and Weak Light on the Physiological Characteristics of Cotton Leaves during Cotton Boll Formation Period" (xjnkq-2016024)

摘要: 【目的】研究棉花花铃期遮荫弱光对棉花叶片生理特性的影响。【方法】选择耐荫性不同的2个棉花(Gossypium hirsutum L.)品种中棉所 49 号和新陆中36 号为材料,于2016至2017年在乌鲁木齐市安宁区镇(87°28′E, 45°56′N)新疆农业科学院综合试验场进行不同程度遮荫大田试验。【结果】遮荫弱光造成棉花主茎功能叶SPAD值、净光合速率(Pn)、蒸腾速率(Tr) 和气孔导度(Gs)迅速降低,胞间CO2浓度(Ci)上升,棉铃对位叶可溶性糖和氨基酸含量上升。中棉所 49 号的相关指标变化幅度较新陆中36号小。不同生态型品种对遮荫弱光环境的适应性亦不同。【结论】遮荫弱光环境下棉花叶片光合性能下降,光合产物累积能力及输出能力受阻,导致棉铃对位叶可溶性糖和氨基酸含量降低,棉花单株铃数、铃重、籽棉产量亦随遮荫程度加深而显著减少(P<0.05)

关键词: 棉花; 花铃期; 遮荫弱光; 叶片; 光合代谢

Abstract: 【Objective】 To study the effects of shading and weak llight on the physiological characteristics of cotton leaves during flower and boll formation period. 【Method】Two varieties of cotton (Zhongmiansuo 49 and Xinluzhong 36) with different shade tolerance were selected. The varieties were tested in the comprehensive experimental site of Xinjiang Academy of Agricultural Sciences from 2016 to 2017 in Anning District (N43°58′ and E87°30′), Urumqi City. 【Result】 Under shading and weak light, the chlorophyll SPAD, net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (Gs) of the functional leaf on the main stems reduced, but the intercellular CO2 concentration (Ci) increased. The contents of soluble sugar and soluble amino acid in the subtending leaf of cotton boll increased. The variation ranges of related indices of Zhongmiansuo 49 were less than those of Xinluzhong 36, which showed that the adaptability of different ecotypes to shading and weak light environment was also different. Stress caused by low temperature and poor light occurred frequently, which affected cotton leaves enzyme activity, and reduced photosynthetic capacity, then inhibited the plant photosynthesis and decreased the carbohydrates supplementary capacity in the subtending leaf of cotton boll. 【Conclusion】Under shading and weak light environment, the photosynthetic performance of cotton leaves decreased, and the accumulation ability and output ability of photosynthetic products were blocked, which eventually resulted in the decrease of soluble sugar and amino acid content in cotton boll subtending leaves, the number of bolls per plant and boll weight. The yield of seed cotton also decreased significantly with the deepening of shading (P < 0.05)

Key words: cotton; boll period; temperature-light stress; cotton leaves; photosynthetic metabolism

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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