1选育方法与过程1992年配制高产抗病组合龙7439×克88-596,F0种子用1.0万γ射线处理田间播种的F1植株,并进行幼胚培养,1993年将组培苗移入温室,进行F2S0植株正常管理,适时收获,混合脱粒。1994年春将种子单粒点播于田间,获得F3S1植株,进行相关调查,并分别接种鉴定根腐病、赤霉病 1 Breeding methods and processes In 1992 the preparation of high yield and disease resistance combination Long 7439 × g 88-596, F0 seeds with 10,000 γ ray treatment of field sown F1 plants, and immature embryo culture, in 1993 the tissue culture seedlings into the greenhouse, F2S0 plants for normal management, timely harvest, mixed threshing. In the spring of 1994, single seed was sowed in the field to obtain F3S1 plants, relevant investigations were carried out, and inoculation identification of root rot, scab