| 隆玉2号玉米干物质积累、分配与转移规律研究 |
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| 引用本文： | 何雪银,文仁来,吴翠荣.隆玉2号玉米干物质积累、分配与转移规律研究[J].广西农业科学,2007,38(1):29-31. |
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| 作者姓名： | 何雪银 文仁来 吴翠荣 |
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| 作者单位： | 广西玉米研究所,南宁明阳,530227 |
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| 摘 要： | 在中等土壤肥力下,对隆玉2号玉米的干物质积累、分配与转移规律进行研究,试验结果表明:该玉米品种单株干物质积累与生育进程间的关系呈S形曲线变化,可用Log istic方程拟合,拟合方程为Y=369.23/(1 7061.5494-e 0.09288x)(r=-0.976,F0.05=7.71,F0.01=21.2,F=80.42**)。干物质在各器官中的分配随生长中心的转移而发生变化,15可见叶前干物质主要分配在叶片中,而后转为茎、叶;抽雄吐丝后,各器官干物质开始向籽粒转移,果穗成为光合产物的分配中心;各器官干物质的转移率为14.56%。
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| 关 键 词： | 玉米 隆玉2号 干物质积累 干物质分配 干物质转移 |
| 文章编号： | 1002-8160（2007）01-0029-03 |
| 收稿时间： | 2006-06-30 |
| 修稿时间： | 2006-06-30 |
Study on dry matter accumulation,distribution and translocation of corn Longyu 2 |
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| HE Xue-yin,WEN Ren-lai,WU Cui-rong.Study on dry matter accumulation,distribution and translocation of corn Longyu 2[J].Guangxi Agricultural Sciences,2007,38(1):29-31. |
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| Authors: | HE Xue-yin WEN Ren-lai WU Cui-rong |
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| Institution: | Guangxi Maize Research Institute, Mingyang, Nanning 530227, China |
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| Abstract: | Dry matter accumulation,distribution and translocation of corn Longyu 2 were studied by planting the crop in soil with medium fertility.The results were as follows: the variation of dry weight accumulation per plant was an "S" curve in corn growth,and it could be fitted by Logistic curve equation: Y=369.23/(1 7061.5494e~(-0.09288x))(r=-0.976,F_(0.05)=7.71,F_(0.01)=21.2,F=80.42~(**)).The dry matter distribution in all organs was changed as the growth center transferred.Dry matter was mainly distributed in leaves before growth of the 15th visible leaf,and then turned to the stems and leaves.The dry matter of each organ began to transfer to the grains after spinning stage and the ears became the distribution center of the photosynthetic products.The translocation rate of dry matter to the grains was 14.56%. |
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| Keywords: | corn Longyu 2 dry matter accumulation dry matter distribution dry matter translocation |
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