| Evaluation on the allelopathic effect of the main wheat varieties in arid areas on Qinghai plateau |
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| DOI：10.7606/j.issn.1000-7601.2017.01.43 |
| Key Words: Qinghai plateau aridareas wheat varieties allelopathy evaluation |
| Author Name | Affiliation | | LI Wei | Qinghai Academy of Agriculture and Forestry Science, Xining, Qinghai 810016, China
State Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Xining, Qinghai 810016, China
Provincial Key Laboratory of Agricultural Integrated Pest Management in Qinghai, Xining, Qinghai 810016, China | | SHEN Shuo | Qinghai Academy of Agriculture and Forestry Science, Xining, Qinghai 810016, China | | GUO Qing-yun | Qinghai Academy of Agriculture and Forestry Science, Xining, Qinghai 810016, China
State Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, Xining, Qinghai 810016, China
Provincial Key Laboratory of Agricultural Integrated Pest Management in Qinghai, Xining, Qinghai 810016, China |
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| Abstract: |
| In order to develop ecologically weed control techniques based on ecological colonies with both of wheat and weeds surviving together, we evaluated the allelopathic effect of the main wheat varieties and lines in arid areas on Qinghai plateau. The allelopathic effect of the main was evaluated by the inhibition rate and values of response index (RI). The results showed that the inhibition rate of total plant numbers ranged from 23.67% to 45.85%, the inhibition rate of fresh weight ranged from 43.64% to 76.23%, and the inhibition rate of dry weight ranged from 34.19% to 76.24%. Most values of RI of 10 varieties of wheat on Brassica napus L. and Elsholtziadensa Benth. It means that all these 10 varieties have inhibitory effect on the dominant varieties of weed. Among them, the inhibitory effect of Gaoyuan 448 is the highest. Based on the furt
hest neighbor method, a cluster analysis was performed, showing that the inhibitory effect of Varieties Gaoyuan 448 and Abo was the highest, Gaoyuan 437, Qingchun 38, Lemai 5, Humai 14, Humai 15, and Tongmai 1 moderate, and Huzhuhong and 74 the lowest. |
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