Abstract
Methods used by potato breeders to screen seedlings in early generations for agronomic characteristics are reviewed. Alternative strategies for maximizing response to selection are compared. Data are presented to demonstrate the effect of various selection methods and to aid in developing a selection philosophy. A moderate intensity of selection over several generations appears to best effect a balance between genetic advance and loss of valuable genotypes, while at the same time allowing for reasonably efficient operation.
Resumen
En este trabajo varios métodos usados por fitomejoradores de papa para seleccionar plántulas en generaciones tempranas en base a caracteristicas agronómicas se revisaron. Varias estrategias alternativas para maximizar la respuesta a la selección fueron comparadas. Son presentados datos para demostrar el efecto de varios métodos de selección y para ayudar en el desarrollo de una fisiología de selección. Una intensidad moderada de selección sobre varias generaciones parece influenciar un mejor balance entre el avance genético y la pérdida de genotipos valiosos permitiendo al mismo tiempo una razonable y eficiente operación.
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Invitational paper presented to Early Generation Selection Methods for Resistance and Horticultral Factors Symposium, PAA 65th Annual Meeting, August 4, 1981.
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Tai, G.C., Young, D.A. Early generation selection for important agronomic characteristics in a potato breeding population. American Potato Journal 61, 419–434 (1984). https://doi.org/10.1007/BF02852811
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DOI: https://doi.org/10.1007/BF02852811