| Improving a method for evaluating alfalfa cultivar resistance to thrips | |
| Alternative Title | Improving a method for evaluating alfalfa cultivar resistance to thrips |
| Tu Xiongbing1; Fan Yaoli1; Ji Mingshan2; Liu Zhongkuan3; Xie Nan3; Liu Zhenyu3; Zhang Zehua1 | |
| 2016 | |
| Source Publication | JOURNAL OF INTEGRATIVE AGRICULTURE
 |
| ISSN | 2095-3119 |
| Volume | 15Issue:3Pages:600-607 |
| Abstract | 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. |
| Other Abstract | 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 ‘α’, corresponding to the natural enemy quantity ratio, to eliminate the effect of the natural enemy using “αTQR”. 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 αTQR 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. |
| Keyword | NATURAL ENEMIES HERBIVORES ATTRACTS PLANTS APHID thrips quantity ratio (TQR) model alfalfa cultivar resistance thrips natural enemy |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [China Agriculture Research System] |
| CSCD ID | CSCD:5673915 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/151768 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 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 |
| Recommended Citation 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. |
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