拉萨市引种白菜型冬油菜筛选试验

Screening Experiment of Introducing Brassica rapa Winter Rape in Lhasa

通过对引种白菜型冬油菜在拉萨市的越冬率、生育期及产量进行比较,筛选出适宜本地种植抗寒性强的白菜型冬油菜品种(系)。结果显示,15QX60和天油178越冬率80.51%、80.33%,生育期293、289 d,产量200.01、180.69 kg/667m2,抗寒性好,农艺性状表现优异,可以在拉萨市种植。其余品种(系)越冬率低于75%,产量低于165 kg/667m2,农艺性状表现一般,考虑淘汰。

By comparing the overwintering rate,growth period and yield of the introduced Brassica rapa winter rape in Lhasa,the varieties(lines)of Brassica rapa winter rape suitable for local cultivation were selected.The results showed that the overwintering rates were 80.51%and 80.33%,the growth period was 293 and 289 days,the yield was 200.01,180.69 kg/667m2of 15QX60 and Tianyou 178,the cold resistance and agronomic performance were excellent,and they can be planted in Lhasa.The remaining varieties(lines)of the overwintering rate was less than 75%,and the yield was less than 165 kg/667 m2.The agronomic traits were average which were considered to be eliminated.