Improving a method for evaluating alfalfa cultivar resistance to thrips

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	Improving a method for evaluating alfalfa cultivar resistance to thrips
	Tu Xiongbing 1; Fan Yaoli 1; Ji Mingshan 2; Liu Zhongkuan 3; Xie Nan 3; Liu Zhenyu 3; Zhang Zehua 1
刊名	JOURNAL OF INTEGRATIVE AGRICULTURE
	2016
卷号	15 期号:3 页码:600-607
关键词	NATURAL ENEMIES HERBIVORES ATTRACTS PLANTS APHID thrips quantity ratio (TQR) model alfalfa cultivar resistance thrips natural enemy
ISSN号	2095-3119
其他题名	Improving a method for evaluating alfalfa cultivar resistance to thrips
英文摘要	The thrips quantity ratio (TQR) model is an important tool for evaluating crop resistance to thrips based on the correlation between thrips quantities and cultivars. Unfortunately, it is inaccurate, and the results appear significantly inconsistent when analysing the same cultivars in the same field study. To improve this model, we first studied the resistance of 28 alfalfa cultivars to thrips in Cangzhou, Hebei Province, north China. The results showed that the most suitable evaluation period was from May to June, as the thrips population was stable during this period. Second, we found that the natural enemy population was significantly positively correlated with the thrips population density (R=0.7275, P<0.0001), which might influence resistance estimation. Hence, we introduced a parameter 'alpha', corresponding to the natural enemy quantity ratio, to eliminate the effect of the natural enemy using "alpha TQR". Using the improved method, 28 cultivars were clustered into three classes: the resistant class, sensitive class, and median class. All numerical values were calculated for alpha TQR displayed as a Gaussian distribution. This information showed that all data should be divided into nine groups using a median value of 1 +/- 0.1 with an equal difference of 0.1. Based on the new standard cultivars, Gongnong 1, Alfaking, Cangzhou and Algonquin were classified as highly resistant cultivars; Zhongmu 3, Gongnong 2, Zhongmu 1 and Zhongmu 2 were classified in the resistant group; Queen was classified in the moderately resistant group; Derby, WL354HQ, KRIMA, Apex, 53HR, SARDI 5 and Farmers Treasure were classified in the median class; WL319HQ, WL343HQ and Sitel were classified as the low sensitive group; WL440HQ and SARDI 7 as the moderately sensitive group; WL168HQ and Sanditi as the sensitive group; and SARDI 10, WL363HQ, FD4, WL323 and SOCA as the highly sensitive group.
资助项目	[China Agriculture Research System]
语种	英语
CSCD记录号	CSCD:5673915
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/151767]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Agr Sci, Institute Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China Institute Plant Protect State Key Lab Biol Plant Dis & Insect Pests 2.中国科学院金属研究所 3.Hebei Acad Agr & Forestry Sci, Institute Agroresourse & Environm, Shijiazhuang 050051, Peoples R China
推荐引用方式 GB/T 7714	Tu Xiongbing,Fan Yaoli,Ji Mingshan,et al. Improving a method for evaluating alfalfa cultivar resistance to thrips[J]. JOURNAL OF INTEGRATIVE AGRICULTURE,2016,15(3):600-607.
APA	Tu Xiongbing.,Fan Yaoli.,Ji Mingshan.,Liu Zhongkuan.,Xie Nan.,...&Zhang Zehua.(2016).Improving a method for evaluating alfalfa cultivar resistance to thrips.JOURNAL OF INTEGRATIVE AGRICULTURE,15(3),600-607.
MLA	Tu Xiongbing,et al."Improving a method for evaluating alfalfa cultivar resistance to thrips".JOURNAL OF INTEGRATIVE AGRICULTURE 15.3(2016):600-607.