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随着耕作制度的改革,我省现有栽培的油菜品种,已远远不能满足生产发展的需要。当前在我省种植的三大类型油菜品种中:白菜型品种,虽早熟,对稻、油两熟茬口安排无影响,但产量低,不抗病;甘兰型品种,丰产、抗病,但晚熟,影响茬口安排;芥菜型品种,抗旱、耐瘠,但籽粒小,丰产性差,抗病力弱。为了尽快地选育出早熟、丰产、抗病、含油量高的油菜新品种。两年来,我们在油菜杂交育种工作中,除对雄性不育株,进行了鉴定和对杂种后代进行选育观察外,还配制了新的杂交组合。现分述如下:
With the reform of the tillage system, the cultivars of rape cultivated in our province are far from meeting the needs of production development. Currently in our province planted three types of varieties of rapeseed: cabbage-type varieties, although precocious, rice, oil two stubble arrangement has no effect, but low yield, no disease resistance; type of cabbage varieties, high yield, disease resistance, but Late maturity, affecting the arrangement of stubble; mustard-type varieties, drought, barren, but small grains, poor yield, disease resistance is weak. In order to bred early as soon as possible, high yield, disease resistance, high oil content of new rapeseed varieties. In the past two years, we conducted a crossbreeding program in rapeseed, in addition to the identification of male sterile plants and observation of breeding offspring hybrids, we also prepared a new hybrid combination. Now as follows: