| 油菜生态特性研究——油菜的播期与产量的生态和生物差异 |
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| 引用本文： | 王国槐,官春云,陈社元.油菜生态特性研究——油菜的播期与产量的生态和生物差异[J].江西农业大学学报,2001,23(2):174-177. |
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| 作者姓名： | 王国槐 官春云 陈社元 |
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| 作者单位： | 湖南农业大学植物科技学院, |
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| 基金项目： | 湖南省教委科学研究资助项目 !(0 1- 95 1- 0 3 - 1) |
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| 摘 要： | 用甘蓝型油菜湘油13号在4个不同地点进行了4个播期的研究，结果表明，在9月至10月范围同一地点播种越早产量越高，在不同地点同一播期，产量与全生育期以及冬前主茎叶与总积温之间的相关是显正相关，冬前总积温和主茎叶对产量的贡献是不同的，在高纬度比低纬度的大，通过早播产量增加的生物学基础是促进了幼苗的生长，通过早播达到高产的关键栽培技术是培育壮苗。
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| 关 键 词： | 油菜 生态习性 播期 产量 生态差异 生物学差异 高产生物学基础 |
| 文章编号： | 1000－2286(2001)02－0174－04 |
| 修稿时间： | 2000年10月8日 |
Studies on Ecological Characters of Rape |
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| WANG Guo-huai,GUAN Chun-yun,CHEN She-yuan.Studies on Ecological Characters of Rape[J].Acta Agriculturae Universitis Jiangxiensis,2001,23(2):174-177. |
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| Authors: | WANG Guo-huai GUAN Chun-yun CHEN She-yuan |
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| Abstract: | Four seeding date studies of rapeseed (B.napus) cultivar Xiang you 13 were conducted at four locations. The results showed that the earlier seeding dates in September and October at the same location, the higher yields. The relationships between yield and whole growth period and between total cumulative temperature and the leaves on the main stem before winter were notable positive at different locations on the same seeding date. Total cumulative temperature and main stem leavies before winter were different in the contribution to the yield, which was larger at high latitudes than that at low latitude. Biological basis of yield increases through early seeding was its enhancement to seeding growth. The key cultural technique for high yield through early seeding was to develop robust seedings. |
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| Keywords: | B napus ecological habits seeding date |
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