نتایج جستجو برای: degeneration
تعداد نتایج: 62128 فیلتر نتایج به سال:
Journal:
:Proceedings of the Royal Society of Medicine
1935
Journal:
:Proceedings of the Royal Society of Medicine
1948
Journal:
:Agricultural Systems
2022
Studies in the Andes have demonstrated that seed degeneration of potato occurred experimental conditions, but was negligible farmers' conditions. There are two hypotheses for this difference: (1) farmers cultivate resistant varieties, or (2) they use on-farm practices can manage degeneration. Farmers may replace some saved from their fields with outside seed, it is an open question what level b...
Journal:
:Proceedings of the Royal Society of Medicine
1961
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