湖北农业科学 ›› 2020, Vol. 59 ›› Issue (12): 82-84.doi: 10.14088/j.cnki.issn0439-8114.2020.12.018

• 植物保护 • 上一篇    下一篇

恩施烟区根结线虫田间发生动态与土壤环境的关系

向必坤, 施河丽, 陈红华, 左梅, 彭五星, 尹忠春, 孟贵星, 谭军   

  1. 湖北省烟草公司恩施州公司,湖北 恩施 445000
  • 收稿日期:2019-07-23 发布日期:2020-08-26
  • 通讯作者: 彭五星,(电子信箱)365850331@qq.com。
  • 作者简介:向必坤(1979-),男(土家族),湖北恩施人,农艺师,硕士,主要从事烟草栽培、烟草育苗技术研究工作,(电话)13277569122(电子信箱)809247633@qq.com

Relationship between dynamics of root-knot nematode and soil environment in Enshi tobacco growing areas

XIANG Bi-kun, SHI He-li, CHEN Hong-hua,ZUO Mei, PENG Wu-xing, YIN Zhong-chun, MENG Gui-xing, TAN Jun   

  1. Enshi Tobacco Company of Hubei Province, Enshi 445000, Hubei, China
  • Received:2019-07-23 Published:2020-08-26

摘要: 在恩施烟叶主产区,开展根结线虫田间发生动态及其与土壤环境的关系调查研究。结果表明,移栽后30 d烟株开始受到根结线虫为害,且发病率和病情指数逐步增加,直至烟叶采收结束。同时研究了根结线虫与土壤含水量、土壤pH和土壤温度的关系,烟株在大田生长发育期间,根结线虫发病率和病情指数与土壤含水量呈极显著负相关关系,相关系数分别为-0.728和-0.677;与土壤温度呈显著正相关关系,相关系数分别为0.593和0.536;与土壤pH无明显相关;而卵和二龄幼虫数量与土壤含水量、土壤pH和土壤温度无显著相关性。

关键词: 烟草, 根结线虫, 土壤含水量, 土壤温度, 土壤pH

Abstract: The occurrence dynamics of root-knot nematode and its relationship with soil environment were investigated in Enshi tobacco growing areas. The results showed that the tobacco plants began to be damaged by root-knot nematodes 30 d after transplanting, and the incidence and disease index gradually increased until the harvest of tobacco leaves were over. At the same time, the relationship between root-knot nematode and soil water content, soil pH and soil temperature were studied. During the growth and development of tobacco plants, the incidence and disease index of root-knot nematode showed a significant negative correlation with soil water content, and the correlation coefficients were -0.728 and -0.667,respectively; There was a significant positive correlation with soil temperature, the correlation coefficients were 0.593 and 0.536,respectively; There was no significant correlation with soil pH. However, the number of eggs and second instar larvae had no correlation with soil water content, soil pH and soil temperature.

Key words: tobacco, root knot nematode, soil water content, soil temperature, soil pH

中图分类号: