摘要
小麦早熟良种的选育,对于增加复种指数,防御灾害,实现高产稳产,有着很大的意义。山西忻县地处北方晚熟冬麦区北部边缘,为了适应改制和抗灾稳产的需要,应选育比推广品种早熟10天左右,并具备较强抗寒力和较好产量性状的特早热品种。
In order to adapt to the change of cropping system as well as resistance to disaster and keeping up stable yield in the northern margin zone of north late winter wheat area in China,we started out to breed an extra early variety of winter wheat in the middle of sixty,and carried out the research of the ideal model of extra early variety and its breeding ways.In the past ten odd years,we adopted the cross breeding of step type complementary of early mature character.Several extra early strains(maturing ten days earlier than the varieties now widely used in production)with good comprehensive characters have been obtained by three step cross.By the study of phasic development characters and bloom mature and late stage development speed of different type varieties,it has been comprehended that an extra early variety of winter wheat must be such a type that its ear emerges extra early and late stage developemnt is very fast.The relation of mature period with ability of resistance to frost and yield characters have been studied.The extra early variety have possessed characters of higher resistance to frost and good yield.We have preliminarily devised an ideal or more ideal model of early variety of winter wheat for northern margin zone of north late mature winter wheat area in China.
作者
杨亚凡
李丁元
曹顺喜
武晓琴
贾海瑜
Yang Ya-fan;Li Ding-yuan;Cao Shun-xi;Wu Xiao-gin;Jia Hai-yu(Research Institute of Corn of the Shanxi Academy of Agricultural Sciences)
出处
《中国农业科学》
1981年第1期21-28,共8页
Scientia Agricultura Sinica
