%A XING Xiao-Ping,YUAN Hong-Xia,SUN Jun-Wei,ZHANG Jie,SUN Bing-Jian,LI Hong-Lian %T Resistance to Two Species of Cereal Cyst Nematode and Its Evaluation Methods in 47 Major Wheat Cultivars in Henan Province, China %0 Journal Article %D 2014 %J Acta Agronomica Sinica %R 10.3724/SP.J.1006.2014.00805 %P 805-815 %V 40 %N 05 %U {https://zwxb.chinacrops.org/CN/abstract/article_5612.shtml} %8 2014-05-12 %X
Resistance to cereal cyst nematode (CCN) is an important breeding target in wheat. In this study, we evaluated the resistance to CCN Xingyang population (Heterodera avenae) and Xuchang population (H. filipjevi) in 47 wheat cultivars from Henan Province, China through greenhouse and field tests. The CCN resistance was evaluated by the methods of average number of white female per plant, relative resistance index (RRI) and Pf /Pi ratio. All cultivars were susceptible to H. avenae and H. filipjevi evaluated by average number of white female per plant after artificial inoculation in greenhouse. However, Taikong 6, Xinmai 11, Zhongyu 6, and Xinmai 18 showed resistance to H. avenae based on RRI evaluation. In field test, when evaluated with average number of white female per plant, there were a few resistant cultivars, including Taikong 6 and Xinmai 18 with high resistance and 10 cultivars (such as Zhongyu 6 and Xinmai 11) with moderate resistance to H. avenae, and Zhongyu 6 and Taikong 6 with high resistance and three cultivars (Yanzhan 4110, Pumai 9, and Yunong 201) with moderate resistance to H. filipjevi. The result of RRI evaluation showed that Taikong 6 was highly resistant to H. avenae, and Xinmai 18, Zhongyu 6 and Xinmai 11 were resistant to H. avenae; Zhongyu 6 and Taikong 6 were highly resistant to H. filipjevi and 4 cultivars (Yanzhan 4110, Pumai 9, Yunong 201, and Yunong 949) were resistant to H. filipjevi. Using Pf /Piratio as the evaluation index, four cultivars (Taikong 6, Xinmai 11, Zhongyu 6, and Xinmai 18) were resistant to H. avenae, and four cultivars (Taikong 6, Zhongyu 6, Pumai 9, and Puyou 938) were resistant to H. filipjevi. The resistance evaluation based on RRI method was partially identical to that based on white female number per plant method, and RRI method has the advantage to reduce the great evaluation error among susceptible cultivars. This method can be considered in CCN resistance evaluation in wheat.