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Effects of Waterlogging and Shading at Jointing Stage on Dry Matter Distribution and Yield of Winter Wheat

文献类型： 会议论文

第一作者： Yang Liu

作者： Yang Liu 1 ; Xiaoyu Liu 2 ; Jing Cao 1 ; Chunlin Shi 1 ; Shouli Xuan 1 ;

作者机构： 1.Institute of Agricultural Information/Key Laboratory of Agricultural Environment in Lower Reaches of the Yangtze River, MOA, Jiangsu Academy of Agricultural Sciences, Nanjing, China

2.Jiangsu Vocational College of Agriculture and Forestry, Jurong, China

关键词： Waterlogging;Shading;Jointing stage;Grain yield;Winter wheat

会议名称： IFIP WG International Conference on Computer and Computing Technologies in Agricultur

主办单位：

页码： 80-92

摘要： Continuous rain is the main meteorological constraint for winter wheat production in Jiangsu Province, accompanied by stresses of both waterlogging and shading. To evaluate the independent and combined effects on winter wheat at jointing stage, pot experiments were conducted using two cultivars, Ningmai 13 and Yangmai 13. Four treatments, CK (non-stressed), WA (waterlogging alone), SA (shading alone) and WS (both waterlogging and shading) were established with different durations. In the non-stressed environment, Yangmai 13 had higher production than Ningmai 13. However, Ningmai 13 had better production under stresses, indicating a better tolerance to waterlogging and shading. Comparing dry matter distribution and grain production showed that the negative effects of the stresses were in the order WA> WS> SA, demonstrating that shading had compensative effects on waterlogging at jointing stage. Results indicate that production loss of winter wheat due to continuous rain at jointing stage might be overestimated.

分类号： s126-532

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