洋芋退化规律的初步探讨

• 机 构: 甘肃省农科院粮食所会川实验组,
• 出 处: 甘肃农业科技
• 发表日期: 1975年03期
• 关键词: 严重度 退化程度 卷叶 块茎 花叶 皱缩 四级 退化问题 会川 黑斑

目前,我省洋芋退化问题比较突出,对洋芋生产影响较大,必须尽快加以解决。我省洋芋退化的主要表现是:卷叶、皱缩花叶、黑斑、纤块茎、奥古巴花叶、束项、项卷、顶紫等,症状不一。不同的品种或同一品种在各地的退化程度和表现都有很大差异,轻者退化株率1—20％,严重度一至二级;重者退化株率可达70—100％,严重度三至四级。

At present, the problem of potato degradation in our province is quite prominent, which has a great impact on potato production and must be solved as soon as possible. The main manifestations of the degradation of potato in our province are: curly leaves, folds of mosaic, black spots, fiber tubers, flowers and leaves of the Cuban, bundle items, items volume, top purple, the symptoms vary. Different varieties or the same varieties in different parts of the degree of degradation and performance are very different, the light of the degradation rate of 1-20% of the plant, the severity of one to two; severe degenerated strains up to 70-100%, the severity of the three To four.