| 葛家颖1，晋 晨2，朱庆洋2，查 霆2，刘 浩2，李佳诚2，杨 光2，冷锁虎2.垄作摆栽油菜适宜密度研究[J].广东农业科学,2015,42(18):32-36 |
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垄作摆栽油菜适宜密度研究 |
| Suitable density of rapeseed transplanted on ridge |
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| DOI： |
| 中文关键词: 油菜 垄作摆栽 密度 产量 |
| 英文关键词: oilseed rape transplanting on ridge density yield |
| 基金项目:：江苏高校优势学科建设工程项目
（PAPD）；江苏省农机三新工程项目（NJ2015-26、
NJ2014-28）；江苏省农业三新工程项目（SXGC［2014］
301，SXGC［2013］111） |
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| 摘要点击次数: 1267 |
| 全文下载次数: 551 |
| 中文摘要: |
| 以杂交油菜宁杂1818 为材料，设置垄作摆栽油菜不同密度处理，研究不同处理对植株农艺性状、
冠层结构、各时期干物质积累量和籽粒产量及其构成因素的影响。结果表明，密度为10.5 万株/hm2 时产量最
高，达4 196.9 kg/hm2。经统计分析，籽粒产量与密度间呈二次曲线关系，可求出最适密度为10.17 万株/hm2，
适宜密度范围为9.50 万～10.84 万株/hm2。在适宜密度条件下，油菜单株生长量适中，结角层结构合理，各产
量构成因素较协调，群体角果数虽略少于密度为12 万株/hm2 的处理但显著高于7.5 万株/hm2 和9 万株/hm2
的处理，而千粒重、群体总粒数和花后干物质积累量分别高于其他3 个处理。 |
| 英文摘要: |
| In this experiment，Taking Ningza 1818（Brassica napus L.）as materials， different densities of
transplanting on ridge were set up to study the effects of different densities on the agronomic characters of plant，
pod canopy structure，the amount of dry matter accumulation of each period，seed yield and its component factors.
The results showed that，the treatment of 105 thousand plants per hectare had the highest yield with 4 196.9 kg/hm2.
Through statistical analysis，there was a quadratic curve relationship between seed yield and density. According to the
regression equation，we figured out the suitable density，which was 101.7 thousand plants per hectare，and the most
suitable density range was 95-108.4 thousand plants per hectare. Under the suitable density，rapeseed had a suitable
amount of growth and a reasonable pod canopy structure，besides，the yield component factors coordinated. The
number of population pods in the suitable density was slightly less than that of 120 thousand plants per hectare，but
significantly more than that of 75 thousand plants and 90 thousand plants per hectare. 1000-seed weight，total seed
number，and the amount of dry matter accumulation after flowering under the suitable density were higher than those
of other treatments. |
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