白菜型冬油菜在甘南高原适宜播期研究初报

Preliminary Study on Suitable Sowing Date of Cabbage TypeWinter Rape in Gannan Plateau

以陇油7号为参试品种,通过对5个不同播期下冬油菜的越冬率、生育特性特征表现、经济性状、产量表现等进行分析,得出8月1日—13日为甘南高原海拔2800 m地区适播期,8月1日和8月7日2个播期表现出良好的适应性和农艺性状,生育期314~328 d,产量1281~1961 kg/hm^(2)。

Taking Longyou No.7 as the test variety,through the analysis of the overwintering rate,growth characteristics,economic characters and yield performance of winter rape under five different sowing dates,it is considered that August 1 to August 13 is the suitable sowing date in the 2800 m altitude area of Gannan plateau,especially the two sowing dates of August 1 and August 7 showed good adaptability and agronomic characters.The growth period is 314~328 d,and the yield is 1281~1961 kg/hm^(2).