I. The breeding of resistant varieties of potatoes
I. The breeding of resistant varieties of potatoes
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一、马铃薯抗性品种选育
DOI：
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发表时间：
1950
期刊：
影响因子：
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通讯作者：
M. Torka
中科院分区：
文献类型：
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作者：
W. Rudorf;P. Schaper;H. Ross;M. Baerecke;M. Torka
本文综述了1936-1945年（Müncheberg/ Mark）和1947-1948年（Voldagsen/Hann）对晚疫病抗性育种的专门化问题和抗性选择方法的研究结果。3.商业品种的分类应分为两类：（1）纯薯品种，除极少数品种具有一定程度的抗性外，其余品种均高度感病。(II)不同抗性的“杂交品种”，可作为鉴别品种进行专业化研究。4.根据对晚疫病的抗性，可将更多的野生种进行分类。讨论了它们的抗性遗传和杂交适宜性。本文报告了1947-1948年期间所选杂种无性系的试验结果。
Summary1.An introductory historical survey of the breeding for late blight resistance is given.2.The results of the investigation on specialization problems and on methods of selection for resistance for the interval of 1936–1945 (Müncheberg/ Mark) and 1947–1948 (Voldagsen/Hann.) are discussed.3.The assortment of commercial varieties must be divided into two groups: (I) Pure tuberosum varieties, which are highly susceptible with the exception of very few varieties with some degree of resistance. (II) “Hybrid varieties” with different degrees of resistance, which may be used as differential varieties in specialization researches.4.Some more wild species could be classified with regard to their behavior to late blight. Their genetics of resistance and their suitability for hybridization is discussed. A report is given concerning the results of the testing of selected hybrid clones for the interval 1947–1948.