| 不同生态条件下不同基因型小麦干物质和氮素积累与分配特征 |
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| 引用本文： | 荆奇,戴廷波,姜东,曹卫星,孙传范.不同生态条件下不同基因型小麦干物质和氮素积累与分配特征[J].南京农业大学学报,2004,27(1):1-5. |
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| 作者姓名： | 荆奇 戴廷波 姜东 曹卫星 孙传范 |
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| 作者单位： | 南京农业大学农业部作物生长调控重点开放实验室,江苏,南京,210095 |
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| 基金项目： | 国家自然科学基金资助项目 ( 3 0 2 0 0 166，3 0 170 5 44 )，江苏省自然科学基金项目 (BK2 0 0 2 2 0 5，BK2 0 0 10 63 ) |
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| 摘 要： | 以40个主栽小麦品种／品系为材料，研究了不同基因型小麦籽粒干物质与氮素的来源及累积转运过程，分析了氮素累积转运的基因型差异及其对生态环境的反应。结果表明，不同环境下小麦植株干物质与氮素的积累与转运差异明显，籽粒蛋白质含量不同的小麦基因型，植株氮素与干物质的积累与分配过程有显的差异。干物质与氮素的再分配是同步进行的，籽粒蛋白质含量与花后合成氮素的再分配量呈极显正相关(r=0．6375**)，而籽粒产量的提高有赖于花后植株氮素吸收合成能力及光合能力的增强。
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| 关 键 词： | 生态条件 基因型 小麦 干物质 氮素 积累 转运 分配 籽粒产量 |
| 文章编号： | 1000-2030(2004)01-0001-05 |
| 修稿时间： | 2003年3月3日 |
Characteristics of accumulation and translocation of dry matter and nitrogen in wheat genotypes under different environments |
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| JING Qi,DAI Ting bo,JIANG Dong,CAO Wei xing ,SUN Chuan fan.Characteristics of accumulation and translocation of dry matter and nitrogen in wheat genotypes under different environments[J].Journal of Nanjing Agricultural University,2004,27(1):1-5. |
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| Authors: | JING Qi DAI Ting bo JIANG Dong CAO Wei xing SUN Chuan fan |
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| Institution: | JING Qi,DAI Ting bo,JIANG Dong,CAO Wei xing *,SUN Chuan fan |
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| Abstract: | Forty wheat cultivars/lines were grown in two locations of eastern China to study the effects of genotype and environment on the accumulation and translocation of dry matter and nitrogen in plant.The results showed that the effects of environment and genotype on the translocations of dry matter and nitrogen were significant in wheat plant and co translocation of dry matter and nitrogen was found.There was significant positive correlation between grain protein content and nitrogen assimilation after anthesis.It seems that higher grain yield depends on improving plant nitrogen accumulation and photosynthetic capacity after anthesis. |
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| Keywords: | wheat dry matter nitrogen translocation environment |
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