Welcome to CHINESE JOURNAL OF OIL CROP SCIENCES,

CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2020, Vol. 42 ›› Issue (1): 109-.doi: 10.19802/j.issn.1007-9084.2019104​

Previous Articles     Next Articles

Evaluation of rapeseed tolerance on rice herbicides

  

  1. 1. Institute of Crops, Jiangxi Academy of Agricultural Sciences, Key Laboratory of Crop Ecophysiology and Farming System for the Middle and Lower Reaches of the Yangtze River, Ministry of Agriculture Agricultural and Rural Affairs, Nanchang 330200, China;  2. Oil Crops Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agricultural and Rural Affairs, Wuhan 430062, China
  • Online:2020-02-28 Published:2020-03-09

Abstract: Under rice-rapeseed rotation in the Yangzi River Basin, risk of rice herbicide residues on rapeseed production should be evaluate for selection of herbicide-tolerant rapeseed. Thus 19 rapeseed varieties were evaluat⁃ ed under pyrazosulfuron, pretilachlor, bentazone and cyhalofop herbicides stresses. Rapeseed traits were investigat⁃ ed on seed germination rate, plant height, maximum root length, fresh weight aboveground, fresh weight of roots, dry weight aboveground and root dry weight. Results showed that, under herbicide stresses, the tolerance coefficients of different genotype were significantly different. By cluster analysis, varieties were selected with relatively strong tol⁃ erance to different herbicides. It showed that comprehensive evaluation of herbicide tolerance was effective on rape⁃ seed by integration of principal component analysis, subordinative function value and clustering analysis, which could avoid bias and instability of single index analysis. It suggested a practical selecting method for rapeseed as succession crop after rice according to actual use of herbicides in rice plantation. 

Key words: color:#000000, font-family:", sans serif", ,tahoma,verdana,helvetica, font-size:12px, font-style:normal, font-weight:normal, line-height:1.5, text-decoration:none, ">color:#000000, font-family:", sans serif", ,tahoma,verdana,helvetica, font-size:12px, font-style:normal, font-weight:normal, line-height:1.5, text-decoration:none, ">Brassica napus L.;herbicide tolerance;comprehensive evaluation;pyrazosulfuron;propion? amide;bentazone;cyhalofoprin

CLC Number: