Effects of Solanum nigrum L.under Different Densitieson Cotton Growth and Development

doi:10.6048/j.issn.1001-4330.2020.11.017

Xinjiang Agricultural Sciences ›› 2020, Vol. 57 ›› Issue (11): 2090-2098.DOI: 10.6048/j.issn.1001-4330.2020.11.017

• Chemical Fertilizer and Pesticide Application Reduction for Cotton • Previous Articles Next Articles

Effects of Solanum nigrum L.under Different Densitieson Cotton Growth and Development

CAI Xiaohu, ZHANG Yudong, HAN Rui, SHI Yahui, WU Na, WANG Jungang

College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China

Received:2020-03-15 Online:2020-11-20 Published:2020-10-23
Correspondence author: WANG Jungang (1970-), male, native place: Taian Gansu, Professor and master tutor of Shihezi University, research field: Cotton plant shape regulation, (E－mail) wangjungang98@163.com
Supported by:
Supported by Stress and Economic Loss Evaluation of Cotton Weeds in Machine-harvesting Cotton Fields (Major S & T Program of XPCC 2018AA06-02)

不同种群密度条件下龙葵对棉花生长及生理生化指标的影响

蔡晓虎, 张玉栋, 韩睿, 史亚辉, 吴娜, 王俊刚

石河子大学农学院,新疆石河子 832003

通讯作者: 王俊刚(1970-),男,甘肃泰安人,教授,硕士研究生导师,研究方向为棉花株型调控,(E－mail)wangjungang98@163.com
作者简介:蔡晓虎(1994-),男,新疆克拉玛依人,硕士研究生,研究方向为植物保护,(E－mail)3031460576@qq.com
基金资助:
兵团重大科技项目“机采棉田杂草对棉花的胁迫与经济损失评估”(2018AA06-02)

Abstract

Abstract: 【Objective】 To study the effects of Solanum nigrum L.with different densitieson cotton growth and development.【Method】 There were 6 density gradients of S Solanum nigrum L. in this experiment, and they were: 10-30, 30-50, 50-70, 70-90 and 90-110 strains/m². The plant height, main root length, chlorophyll content, soluble protein content, MDA activity, CAT activity, SOD activity and POD activity of cotton were determined at cotton seedling stage, bud stage and flowering-boll stage.【Result】 The plant height, root length and chlorophyll of cotton at cotton bud stage and flowering-boll stage decreased with the increase of population density of Solanum nigrum L. d uring cotton bud stage, Solanum nigrum L.had more greater effect on the activity of cotton MDA, CAT, SOD and POD. Among them, Solanum nigrum L. under 50-70 plants/m² had the greatest influence on the activity of cotton MDA, CAT, SOD and POD, which were 0.05 mg/g, 5.53 U/g, 10.96 U/g and 7,893.24 U/g, respectively.【Conclusion】 For reducing the harm of Solanum nigrum L., the population density should be controlled below 30 plants/m². at the cotton bud stage.

Key words: cotton; Solanum nigrum L.; density; growth and development

摘要： 【目的】 研究不同密度龙葵对棉花生长和生理生化指标的影响。【方法】 将龙葵设为0、10~30、30~50、50~70、70~90和 90~110株/m² 6个密度处理,分别在棉花苗期、蕾期和花铃期测定棉花株高、主根长及叶片的叶绿素含量、可溶性蛋白含量、MDA含量、CAT活性、SOD活性和POD活性。【结果】 在棉花蕾期和花铃期棉花株高、根长和叶绿素含量均随龙葵种群密度的增加而减少。在棉花蕾期时龙葵对棉花叶片MDA含量、CAT活性、SOD活性和POD活性影响最大。其中龙葵种群密度为50~70株/m²时对棉花MDA含量以及CAT、SOD和POD活性影响最大,分别为0.05 mg/g、5.53 U/g、10.96 U/g和7 893.24 U/g。龙葵种群密度为0、10~30和30~50株/m²时对棉花株数和单株结铃数影响不显著,且龙葵种群密度为0和10~30株/m²时,对棉花铃重影响不显著。【结论】 龙葵种群密度控制在30株/m ²以下。

关键词: 棉花, 龙葵, 密度, 生理生化指标

CLC Number:

S562
S45

CAI Xiaohu, ZHANG Yudong, HAN Rui, SHI Yahui, WU Na, WANG Jungang. Effects of Solanum nigrum L.under Different Densitieson Cotton Growth and Development[J]. Xinjiang Agricultural Sciences, 2020, 57(11): 2090-2098.

蔡晓虎, 张玉栋, 韩睿, 史亚辉, 吴娜, 王俊刚. 不同种群密度条件下龙葵对棉花生长及生理生化指标的影响[J]. 新疆农业科学, 2020, 57(11): 2090-2098.

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Effects of Solanum nigrum L.under Different Densitieson Cotton Growth and Development

不同种群密度条件下龙葵对棉花生长及生理生化指标的影响

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