| 氮肥处理对春小麦穗粒数形成阶段的影响 |
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| 引用本文： | 王晓楠,吴贳玉,付连双,李卓夫. 氮肥处理对春小麦穗粒数形成阶段的影响[J]. 东北农业大学学报, 2011, 42(4): 32-35 |
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| 作者姓名： | 王晓楠 吴贳玉 付连双 李卓夫 |
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| 作者单位： | 王晓楠,付连双,李卓夫,WANG Xiaonan,FU Lianshuang,LI Zhuofu(东北农业大学农学院,哈尔滨,150030);吴贳玉,WU Shiyu(黑龙江省讷河市气象局,黑龙江,讷河,161300) |
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| 基金项目： | 黑龙江省科技厅项目，黑龙江省教育厅新农村建设科技服务项目，农业科技成果转化资金项目 |
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| 摘 要： | 为研究氮肥对小麦穗粒数形成中不同发育阶段的影响,以穗粒数和结实率有差异的3个春小麦品种为材料,拔节期进行追肥,设置3个氮肥处理.结果表明,N1处理下3个品种的穗粒数均较其他两个氮肥处理下的穗粒数高.开花期增施氮肥能够延长小花分化的时间,增加小花分化的数量,减少受精成胚退化率,从而提高穗粒数.
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| 关 键 词： | 春小麦 穗粒数 氮肥 |
Effect of nitrogen fertilizer treatment on growth stage of spring wheat kernels per spike |
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| WANG Xiaonan,WU Shiyu,FU Lianshuang,LI Zhuofu. Effect of nitrogen fertilizer treatment on growth stage of spring wheat kernels per spike[J]. Journal of Northeast Agricultural University, 2011, 42(4): 32-35 |
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| Authors: | WANG Xiaonan WU Shiyu FU Lianshuang LI Zhuofu |
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| Abstract: | The application of the nitrogen fertilizer in three levels was conducted in the jointing stage with three spring wheat cultivars different in the kernels per spike and grain setting ratio for the study on the influence of the nitrogen fertilizer on the kernel formation in the divergent development stages.The results showed that the more kernels per spike of all three cultivars in the treatment 1 were found than that in other two treatments.The nitrogen fertilizer applied in the blooming stage was able to prolong the florets differentiation durition,increase the florets,reduce embryo degenerating ratio,and then enhance the kernels per spike. |
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| Keywords: | spring wheat kernels per spike nitrogen fertilizer |
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