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油菜是湖南省主要油料作物,栽培历史悠久,近年来种植面积达600多万亩,但单产较低,常年仅亩产70—80斤,这除了栽培技术方面的原因之外,缺乏适宜湖南省自然气候条件和栽培制度的品种也是低产的原因之一。湖南省历史上以栽培白菜型油菜(Brassica chinensis)为主。白菜型油菜虽然早熟,但产量不高又不稳定。为了解决这一问题,我省先后育成或从省外引进了一些甘兰型油菜中熟或早中熟品种,如“湘油
Rapeseed is the main oilseed crop in Hunan Province and has a long history of cultivation. In recent years, the planting area has reached more than 6 million mu, but the yield is relatively low, only 70-80 kg per mu per year. Apart from cultivation techniques, rapeseed is not suitable for Hunan Province Varieties of natural climatic conditions and cultivation systems are also one of the reasons for low yields. Hunan province historically cultivated Brassica chinensis. Brassica napus although precocious, but the output is not high and unstable. In order to solve this problem, our province has bred or introduced some cabbage ripe or early maturing varieties from outside the province, such as "Hunan Oil