Journal of Integrative Agriculture ›› 2018, Vol. 17 ›› Issue (03): 621-630.DOI: 10.1016/S2095-3119(17)61802-1

所属专题: 线虫合辑Nematology

• 论文 • 上一篇    下一篇

Zhan Li-ping, Ding Zhong, Peng De-liang, Peng Huan, Kong Ling-an, Liu Shi-ming, Liu Ying, Li Zhong-cai, HUANG Wen-kun   

  • 收稿日期:2017-07-25 出版日期:2018-03-20 发布日期:2018-03-01

Evaluation of Chinese rice varieties resistant to the root-knot nematode Meloidogyne graminicola

Zhan Li-ping1, Ding Zhong2, Peng De-liang1, Peng Huan1, Kong Ling-an1, Liu Shi-ming1, Liu Ying1, Li Zhong-cai3, HUANG Wen-kun1     

  1. 1 State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
    2 College of Plant Protection, Hunan Agricultural University, Changsha 410128, P.R.China
    3 Agriculture Bureau of Hanshou County, Hunan Province, Changde 415900, P.R.China
  • Received:2017-07-25 Online:2018-03-20 Published:2018-03-01
  • Contact: Correspondence HUANG Wen-kun,Tel: +86-10-62813082,E-mail: wkhuang2002@163.com
  • About author:ZHAN Li-ping, E-mail: zhan_liping@163.com;
  • Supported by:

    This work was financially supported by the grants from the National Natural Science Foundation of China (31571986) and the National Basic Research Programme of China (2013CB127502).

Abstract: The root-knot nematode Meloidogyne graminicola, which is distributed worldwide, is considered a major constraint on rice production in Asia.  The present study used the root gall index and number of nematodes inside the roots to evaluate resistance/susceptibility to M. graminicola in different subpopulations of Oryza sativa (aus, hybrid aus, indica, hybrid indica, temperate japonica, tropical japonica).  Nematode development in highly resistant varieties was also evaluated.  Analyses of randomly selected 35 varieties showed the number of M. graminicola nematodes inside the roots correlated very strongly (r=0.87, P≤0.05) with the nematode gall index, and the results from pot and field experiments revealed similar rankings of the varieties for resistance/susceptibility.  Among the 136 tested varieties, temperate japonica displayed the highest gall index, followed by tropical japonica, indica, hybrid indica, aus, and hybrid aus. Zhonghua 11 (aus), Shenliangyou 1 (hybrid aus) and Cliangyou 4418 (hybrid indica) were highly resistant to M. graminicola under both pot and field conditions.  Further examination of nematode development suggested that compared to susceptible rice, M. graminicola penetrated less often into highly resistant varieties and more frequently failed to develop into females.  The promising varieties found in the present research might be useful for the breeding of hybrid rice in China and for the further development of practical nematode management measures.   

Key words: Meloidogyne graminicola ,  rice varieties ,  resistant ,  susceptible ,  resistance evaluation