Morphological disparities in the epidermal and anatomical features of the leaf among wild Brassica juncea populations |
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| Authors: | CHAOHE HUANGFU XIAOLING SONG SHENG QIANG |
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| Institution: | Weed Research Laboratory, Nanjing Agricultural University, Nanjing and;Agro-Environmental Protection Institute of Ministry of Agriculture, Tianjin, China |
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| Abstract: | In the present article, we investigated the epidermal and anatomical features of 10 wild Brassica juncea populations with different susceptibilities to glyphosate in detail. The characteristics of the leaf surface and anatomy could affect the efficacy of glyphosate uptake in weeds through the influence of its adherence and penetration. Our results showed that herbicide-resistant wild populations generally had greater leaf thickness, adaxial cutin thickness, and trichome density in the upper epidermis, but lower spongy tissue thickness and vascular bundle numbers, as compared with the susceptible populations, suggesting that differences in morphological traits among populations might contribute to their variable response to glyphosate. The possible morphological involvement in the differential susceptibility of wild B. juncea populations to glyphosate also was discussed. |
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| Keywords: | Brassica juncea glyphosate herbicide susceptibility morphological parameters |
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