Xinjiang Agricultural Sciences ›› 2023, Vol. 60 ›› Issue (8): 2013-2021.DOI: 10.6048/j.issn.1001-4330.2023.08.023

• Plant Protection · Microbes • Previous Articles     Next Articles

Effect of pendimethalin on the main growth and development and physiological indicators of Solanum nigrum L.

WEI Yingfeng(), ZHANG Quancheng, ZHA Hui, WANG Xiaoli, WANG Jungang()   

  1. The Key laboratory of Oasis Eco-Agriculture of XPCC,College of Agronomy,Shihezi University, Shihezi Xinjiang 832003,China
  • Received:2022-11-29 Online:2023-08-20 Published:2023-08-14
  • Correspondence author: WANG Jungang (1970-), male, native place:Qinan Gansu, Professor and master tutor of Shihezi University, research field: Cotton plant shape regulation, (E-mail)wangjungang98@163.com
  • Supported by:
    Major S &T Program Project of XPCC "Stress and Economic Loss Evaluation of Cotton Weed in Machine-picked Cotton Fields"(2018AA06-02)

二甲戊灵对龙葵苗期主要生长发育和生理指标的影响

魏迎凤(), 张全成, 查慧, 王小丽, 王俊刚()   

  1. 石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子 832003
  • 通讯作者: 王俊刚(1970-),男,甘肃秦安人,教授,硕士生导师,研究方向为杂草学,(E-mail)wangjungang98@163.com
  • 作者简介:魏迎凤(1995-),女,新疆库尔勒人,硕士研究生,研究方向为杂草学,(E-mail)465694392@qq.com
  • 基金资助:
    新疆兵团重大科技项目“机采棉田杂草对棉花的胁迫与经济损失评估”(2018AA06-02)

Abstract:

【Objective】 To clarify the effect of spraying pendimethalin on the main growth and development and physiological indicators of Solanum nigrum L.【Methods】 Plant height, stem thickness, leaf area, fresh weight of above-ground parts, chlorophyll content, soluble sugar content and soluble protein content of Solanum nigrum L.were measured at spraying different concentrations of pendimethalin (0, 300, 600, 900, 1,200,1,500 g.a.i/hm2) at different times (5, 10, 15, 20, 25,30 d) after spraying pesticides using the greenhouse pot method.【Results】 The growth and physiological indicators of Solanum nigrum L.showed an overall decreasing trend with increasing dosage of pendimethalin, and the most serious effect was observed when the concentration was 1,500 g.a.i/hm2.Among them, on the 30th day of treatment, the plant height, leaf area, and fresh weight of the above-ground part of the Solanum nigrum L.were the smallest, which were significantly different from that of the control, which were 2.02 cm, 0.32 cm2, and 0.47 g, respectively.The stem thickness was significantly thicker compared to the control at 15 d before treatment, and with the later growth of Solanum nigrum L.the control stem thickness was significantly higher than those of the treatments.Compared with the control, the soluble sugar, soluble protein, and chlorophyll content reached the minimum 3.12, 0.06, and 0.62 mg/g at the 30th day, and decreased by 7.82, 0.05, 1.05 mg/g, respectively.【Conclusion】 Pendimethalin has a significant effect on the main growth and development and physiological indexes of Solanum nigrum L., and the overall physiological and biochemical indexes show a decreasing trend with increasing dosage of concentrations, and the most serious effect has been observed at high concentrations.

Key words: Solanum nigrum L.; pendimethalin; growth and development; physiological indicators

摘要:

【目的】研究喷施二甲戊灵对龙葵苗期主要生长发育及其生理指标的影响。【方法】采用温室盆栽法,喷施不同浓度(0、300、600、900、1 200、1 500 g.a.i/hm2)二甲戊灵,于施药后不同时间内(5、10、15、20、25、30 d)测定龙葵的株高、茎粗、叶面积、地上部分鲜重及叶绿素含量、可溶性糖含量、可溶性蛋白含量。【结果】龙葵的生长指标和生理指标随二甲戊灵剂量升高整体呈下降趋势,当浓度为1 500 g.a.i/hm2时对其影响最为严重。其中在处理第30 d时龙葵株高、叶面积、地上部分鲜重最小,相比对照存在显著差异,分别为2.02 cm、0.32 cm2、0.47 g。在处理前15 d时茎粗相比对照明显增粗,随着龙葵后期的生长对照茎粗明显高于各处理。与对照相比,可溶性糖、可溶性蛋白、叶绿素含量在第30 d时达到最小值3.12、0.06、0.62 mg/g,且分别减少了7.82、0.05、1.05 mg/g。【结论】二甲戊灵对龙葵苗期生长发育指标及生理指标具有显著影响,随药剂剂量浓度升高其各项指标整体呈现出下降趋势,且高浓度对其影响最为严重。

关键词: 龙葵, 二甲戊灵, 生长发育, 生理指标

CLC Number: