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中国农学通报 ›› 2020, Vol. 36 ›› Issue (36): 106-112.doi: 10.11924/j.issn.1000-6850.casb20191201015

所属专题: 小麦

• 植物保护·农药 • 上一篇    下一篇

不同小麦品种对节节麦的化感作用

朱宝林(), 刘伟堂, 王立鹏, 王豪, 游录丹, 王金信()   

  1. 山东农业大学植物保护学院,山东泰安 271018
  • 收稿日期:2019-12-31 修回日期:2020-03-09 出版日期:2020-12-25 发布日期:2020-12-23
  • 通讯作者: 王金信
  • 作者简介:朱宝林,男,1994年出生,山西临汾人,硕士,研究方向:除草剂毒理与应用技术。通信地址:271018 山东省泰安市岱宗大街61号 山东农业大学植物保护学院,E-mail: 2311591132@qq.com
  • 基金资助:
    国家重点研发计划“粮食主产区主要病虫草害发生及其绿色防控关键技术”(2016YFD0300701);山东省“双一流”建设专项“农作物病虫害协同创新团队”(SYL2017XTTD11)

Allelopathy of Wheat Varieties Against Aegilops tauschii

Zhu Baolin(), Liu Weitang, Wang Lipeng, Wang Hao, You Ludan, Wang Jinxin()   

  1. College of Plant Protection, Shandong Agricultural University, Tai’an Shandong 271018
  • Received:2019-12-31 Revised:2020-03-09 Online:2020-12-25 Published:2020-12-23
  • Contact: Wang Jinxin

摘要:

本文采用培养皿琼脂共培法,通过研究不同小麦品种对节节麦根长、芽长、根干重、芽干重等生长指标的影响,评价不同小麦品种对节节麦的化感作用差异,以期筛选出对节节麦化感作用较强的小麦品种,为节节麦综合防治提供潜在可行途径。研究结果表明,在测定的46个小麦品种中,不同小麦品种对节节麦根长、芽长、根干重、芽干重的化感作用均存在显著差异;且小麦对节节麦根的化感作用大于对芽的化感作用。以RI值作为化感作用指标,并运用聚类分析,将46个小麦品种按化感能力的强弱分为强、中、弱3个类群,筛选出‘山农15’、‘济麦23’、‘泰科麦30’、‘FC009’、‘良星66’、‘众信7503’等6个品种对节节麦具有较强化感作用。

关键词: 节节麦, 小麦品种, 化感作用, RI

Abstract:

Aegilops tauschii is one of the main serious weeds in wheat field in China, it is tolerant to most herbicides due to its close relation to wheat, which brings great difficulties to the chemical control. This study investigated the allelopathic potentials of different wheat varieties against Aegilops tauschii by using equal compartment agar method (ECAM). The effects of different wheat varieties on the root length, shoot length, root dry weight, dry shoot weight of tested Aegilops tauschii were measured, expecting to screen out wheat varieties with stronger allelopathic effects on Aegilops tauschii, and provide feasible approaches for the integrated control of Aegilops tauschii. Results showed that different wheat varieties had significantly different allelopathic effects on root length, shoot length, root dry weight and shoot dry weight of Aegilops tauschii. The effect of the allelopathy activity on Aegilops tauschii root was greater than that on shoot. Using RI value as allelopathy index and combining with cluster analysis, 46 wheat varieties were divided into 3 categories according to their allelopathy ability, and six varieties with strong allelopathy were screened out including ‘Shainong 15’, ‘Jimai 23’, ‘Taikemai 30’, ‘FC009’, ‘Liangxing66’ and ‘Zhongxin7503’.

Key words: Aegilops tauschii, wheat varieties, allelopathy, RI value

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