优良青贮玉米自交系T08选育与应用

Breeding and Application of Excellent Silage Maize Inbred Lines T08

为促进优良青贮玉米自交系的应用,本文简要介绍了T08的选育过程、主要特征特性及应用情况。T08是黑龙江省农业科学院草业研究所以美国杂交种PN78599为基础材料,利用60Co-γ辐照诱变技术与常规育种技术相结合选育的青贮玉米自交系。该自交系具有一般配合力高、生物产量高、抗逆性强、植株持绿性好等特点。以自交系T08为母本组配育成的优良青贮玉米新品种龙育15和龙育17通过了黑龙江省审定,并已在生产上大面积推广应用。此外,用T08改良系组配的青贮玉米新组合在参加的各级试验中表现比较突出。

In order to promote the application of excellent silage maize inbred lines,this article briefly introduced the breeding process,main characteristics and application of T08.Silage maize inbred line T08 was bred from the U.S.maize hybrid PN78599,which was bred through 60Co-γirradiation combined with conventional breeding techniques by Pratacultural Sciences Institute of Heilongjiang Academy of Agricultural Sciences.T08 had good characteristics of high general combining ability,high biomass yield,strong stress-resistance and well stay-green trait.Two silage maize hybrid varieties named Longyu 15 and Longyu 17 were bred by utilizing T08 as the fermale parent.These varieties had been widely applied in the production.Several new silage maize varieties combined by T08 improved line had good performance in different area tests.