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试验选用对TuMV具有不同抗性的8个大白菜高代自交系,配制了“抗×抗”和“抗×感”的4个合抱类型的杂交组合,采用单交法和系谱定向选择,结合苗期人工接种鉴定和田间自然诱发鉴定的抗性筛选技术,筛选出26份合抱类高抗TuMV新材料 【英文摘要】 Four combinations of heading Chinese cabbage inbred lines resistant or susceptible to TuMV were made to screen resistance to TuMV and typical ovate head type which has leaf tip closing on the top,but not overlapping. By pedigree method,induiduals from each segregation generation were identified for resistance and head type. After four generations,26 inbred lines with resistance and ideal headtype were obtained. 相似文献
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自1996年起,我们于早春季节利用中拱棚进行春结球白菜栽培试验。试验设在本中心试验地和济南市历城区唐王镇太平村。3年试验表明,利用中拱棚生产春结球白菜,一般6667m2可产净菜4000kg左右,高者达5000kg。上市时间比露地栽培提前30~40天... 相似文献
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