| 李强,顾元国,林萍,贾东海,王红波,张玉华,陈跃华.新疆冬油菜不同密度水平生育特性及经济性状比较研究[J].干旱地区农业研究,2011,29(2):59~64 |
| 新疆冬油菜不同密度水平生育特性及经济性状比较研究 |
| Comparision of growth and developmental characters and economic characters of winter rape in different density in Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2011.02.10 |
| 中文关键词: 冬油菜 密度 越冬率 生育特性 产量 经济性状 |
| 英文关键词:winter rape density winter survival rate growth and developmental characters yield economic char-
acters |
| 基金项目:国家科技支撑计划“西北旱寒区主要作物抗逆新品种筛选及栽培技术集成示范”项目(2007BAD52B08)；农业部公益性行业(农业)科研专项经费“北方旱寒区冬油菜北移集成技术研究与示范”项目(200903002-04) |
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| 中文摘要: |
| 结合新疆地区冬油菜生长情况,研究了不同密度条件下冬油菜越冬率及叶面积和叶面积指数、鲜重净增量、单位面积干物质积累量、经济性状及产量、含油量。结果表明,密度对冬油菜越冬率、叶面积和叶面积指数、鲜重净增量、单位面积干物质积累量及产量和经济性状、含油量有着显著影响。30、60、90、120、150万株/hm2五个密度处理,低密度处理30万株/hm2叶面积较高,高密度处理150万株/hm2(CK)叶面积指数相对较高,而越冬率、鲜重净增量、单位面积干物质积累量、产量、经济性状和含油量均以90万株/hm2处理最高。适宜的密度水平能提高冬油菜越冬率和最终的产量、含油量。试验结论:在新疆地区冬油菜适宜密度在6090万株/hm2。 |
| 英文摘要: |
| By observing winter rape growth in Xinjiang，a study was conducted on the effect of different density on
winter-survival rate， leaf area， leaf area index，net increase of fresh weight，unit area dry matter accumulation of winter rape，and yield, economic characters, oil content of winter rape in Xinjiang. The results presented that density had sig-nificant efet on these aspects. Among various kinds of density (30×104 plants/hm2，60×104 plants/hm2， 90×104plants/ hm2，120×104 plants/ hm2 and 150×104 plants/ hm2)，the treatment of 30×104 plants/ hm2 had relatively larger leaf area, and that of 150×104 plants/ hm2 had higher leaf area index, while the density of 90×104 plants/hm2 had the highest winter-survival rate，net increase of fresh weight，dry matter accumulation per unit area, yield, economic charac-ters and oil content in all the five treatments. Suitable density could increase the winter survival rate， the growth and de-velopmental characters, yield, economic characters and oil-content of winter rape. The results also indicated that the suitable density of winter rape was 60×104~90×104 plants/ hm2 in Xinjiang. |
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