干旱地区农业研究2012，Vol.30Issue(6)：17-22,31,7.
白菜型冬油菜在北方寒旱区的适应性分析
Analysis of adaptility of Brassica rapa winter rape cultivars in cold and dry regions of North China
摘要
Abstract
The regional trials were conducted to compare the winter survival rate, the growth period and yield of Brassica rapa winter rape cultivars in order to analyse their adaptility. The results showed that Longyou 6 and Longyou 7 had the highest winter survival rates, being 86.40% and 85.53% respectively, which were significantly higher than CK ( Tianyou 2) , while the winter survival rates of Tianyou 5, Tianyou 7 and Tianyou 8 were all lower than CK. The growth period of the same winter rape cultivar varied much in different sites. For example, the growth period of Longyou 6 was 300 days in Qinwangchuan, but it was only 251 d in Khotan and was 49 d earlier than that in Qinwangchuan. The growth priods of different winter rape cultivars had large difference. For example, the growth periods of Longyou 6 and Longyou 7 were 300d in Qinwangchuan, while that of Longyou 8 was 285 d there. The others were 290 days, with 10d earlier than that of Longyou 6. The agronomic traits and average yield also varied greatly in different sites. In conclusion, the strain productivity and stability of Longyou 8, Longyou 7 and Longyou 6 were the best, followed by Longyou 9. The suitability of winter rape cultivars in different ecological regions was also different. Longyou 6 and longyou 7 were the most suitable cultivars in Beijing and its surrounding areas, west Xinjiang and north-central Gansu, Hexi corridor and Jingbian surrounding areas in Shaanxi. The Longyou 8 and Longyou 9 were the most suitable cultivars in south Xinjiang, and Tianyou 2, Tianyou 5 and Tianyou 8 were also suitable in this region.关键词
冬油菜/越冬率/生育期/丰产性/稳定性/北方寒旱区Key words
winter rape/ winter survival rate/ growth period/ productivity/ stability/ cold and dry regions of North China分类
农业科技引用本文复制引用
陈姣荣,孙万仓,方彦,曾秀存,武军艳,李学才,何丽,赵彩霞,史朋辉..白菜型冬油菜在北方寒旱区的适应性分析[J].干旱地区农业研究,2012,30(6):17-22,31,7.基金项目
农业部国家公益性行业(农业)科研专项经费项目(200903002-04) （农业）
国家高技术研究发展计划(863计划)项目"强优势油菜杂交种的创制与应用(2011AA10A104)" （863计划）
农业部现代农业产业技术体系建设专项资金(CARS-13) （CARS-13）
