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农学学报

农学学报 ›› 2020, Vol. 10 ›› Issue (2): 18-23.doi: 10.11923/j.issn.2095-4050.cjas18110001

所属专题： 生物技术

• 农艺科学 生理生化 • 上一篇    下一篇

喷施多效唑对谷子生长及生理特性的影响

聂萌恩1, 柳青山1(), 白文斌1, 郭平毅2, 范昕琦1, 王海燕1, 杨慧勇1   

  1. 1 山西省农业科学院高粱研究所/高粱遗传与种质创新山西省重点实验室,山西晋中 030600
    2 山西农业大学,山西太谷 030800
  • 收稿日期:2018-11-01 修回日期:2019-01-21 出版日期:2020-02-24 发布日期:2020-02-24
  • 通讯作者: 柳青山 E-mail:673673@126.com
  • 作者简介:聂萌恩,女,1988年出生,山西临猗人,助理研究员,硕士研究生,研究方向：作物栽培学与耕作学。通信地址：030600 山西省晋中市榆次区蕴华西街238号 高粱研究所,E-mail：15035686051@163.com。
  • 基金资助:
    晋中市重点科技创新平台“酿造高粱产业化关键技术重点科技创新平台”(P181002);国家青年基金“油菜素内酯缓解谷子阔世玛药害的光合生理机制研究”(31301269);高粱所所级课题“高异交结实谷子中晚熟高度雄性不育系的选育”(GLS2016-13)

Effects of Paclobutrazol on Growth and Physiological Properties of Foxtail Millet

Nie Meng'en1, Liu Qingshan1(), Bai Wenbin1, Guo Pingyi2, Fan Xinqi1, Wang Haiyan1, Yang Huiyong1   

  1. 1 Sorghum Research Institute, Shanxi Academy of Agricultural Sciences/ Shanxi Key Laboratory of Sorghum Genetics & Germplasm Enhancement, Jinzhong 030600, Shanxi, China;
    2 Shanxi Agricultural University, Taigu 030800, Shanxi, China
  • Received:2018-11-01 Revised:2019-01-21 Online:2020-02-24 Published:2020-02-24
  • Contact: Qingshan Liu E-mail:673673@126.com

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摘要：

为研究喷施多效唑对谷子生长发育及生理特性的影响,以‘晋谷21号’和‘张杂谷5号’为研究材料,采用随机区组设计,苗期叶面喷施150、300、600、1200 mg/L多效唑,清水作对照。结果表明,适宜浓度的多效唑处理可有效提高谷子叶片叶绿素、可溶性蛋白和可溶性糖含量,显著增强SOD、POD和NR活性,有效降低谷子株高和MDA含量。与对照组相比,8月21日,300 mg/L多效唑处理‘晋谷21号’和‘张杂谷5号’株高分别降低4.75%和11.75%,叶绿素含量分别提高41.8%和32.5%,SOD活性分别提高11.5%和13.9%,POD活性分别提高37.4%和25.9%,MDA含量分别降低21.8%和16.8%,NR活性分别提高13.56%和16.18%,可溶性蛋白含量分别提高3.97%和5.37%,可溶性糖含量分别提高30.8%和24.2%。多效唑比较适宜浓度为300 mg/L。

关键词: 谷子, 生长, 生理特性, 多效唑

Abstract:

Paclobutrazol with the concentrations 150, 300, 600, 1200 mg/L were applied on ‘Jingu 21’ and ‘Zhangza 5’ in the seedling stage to study the effects on development and physiological properties of foxtail millet, with distilled water as control. The randomized blocks design was adopted. The results showed that spraying leaves with paclobutrazol could significantly improve the content of chlorophyll, soluble protein and soluble sugar. The SOD activity, POD activity and NR activity were significantly enhanced, but the plant height and MDA content were reduced. Compared with the control, on August 21 st, spraying leaves with 300 mg/L, the plant height decreased by 4.75% and 11.75%, the chlorophyll content increased by 41.8% and 32.5%, the SOD activity increased by 11.5% and 13.9%, the POD activity increased by 37.4% and 25.9%, the MDA content decreased by 21.8% and 16.8%, the NR activity increased by 13.56% and 16.18%, the soluble protein content increased by 3.97% and 5.37%, the soluble sugar content increased by 30.8% and 24.2%, respectively. Therefore, the optimum paclobutrazol concentration for controlling the growth of foxtail millet is 300 mg/L.

Key words: Foxtail Millet, Growth, Physiological Property, Paclobutrazol

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