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Tecnología en Marcha
Article . 2020 . Peer-reviewed
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Tecnología en Marcha
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License: CC BY NC ND
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Estimación de Heterosis y Heterobeltiosis en Híbridos Interpoblacionales de Tomate de Cáscara (Physalis Ixocarpa Brot.)

Authors: Antonio Flores-Naveda; Valentín Robledo-Torres; Neymar Camposeco-Montejo;

Estimación de Heterosis y Heterobeltiosis en Híbridos Interpoblacionales de Tomate de Cáscara (Physalis Ixocarpa Brot.)

Abstract

El objetivo de la investigación fue evaluar los progenitores y sus cruzas, y estimar la heterosis y la heterobeltiosis en híbridos de tomate de cáscara (Physalis ixocarpa Brot). Los progenitores fueron UAN CC-S2 (1), un genotipo de Physalis angulata (2), UAN CP-S2 (3), Gran Esmeralda (4), UAN CJ-S2 (5), Rendidora (6) y UAN 133-05 (7). Los cruzamientos planta a planta fueron en invernadero, en otoño-invierno de 2012; la evaluación de cruzas y progenitores se realizó en el municipio de General Cepeda, Coahuila, México, en primavera-verano de 2013, bajo un diseño de bloques al azar con tres repeticiones. En cuanto a rendimiento, la cruza más rendidora fue 3*4, con rendimientos de 47.19 t.ha-1, heterosis de 35.93% y heterobeltiosis de 20.85%; sin embargo, la cruza 1*6 presentó valores mayores de heterosis y heterobeltiosis, 117.91 y 117.62% respectivamente. Para número de frutos por planta, la cruza 7*3 mostró los valores de heterosis y heterobeltiosis mayores, 109.19 y 89.96% respectivamente. En cuanto a peso promedio del fruto, diámetro ecuatorial del fruto y diámetro polar del fruto, la mejor cruza fue la 3*4, que presentó heterosis de 41.17, 11.40 y 12.56% y heterobeltiosis de 37.99, 9.26 y 12.03% respectivamente, si bien la cruza 1*5 mostró valores de 115.91% de heterosis y 107.83% de heterobeltiosis en peso promedio del fruto. Entre las poblaciones estudiadas existe divergencia genética, puesto que presentaron altos valores de heterosis; además, los efectos maternos influyeron de forma significativa en las variables en estudio, indicando la mejor dirección de la cruza.

Keywords

Technology, genetic improvement, Physalis ixocarpa Brot., interpopulation hybridation, T, physalis ixocarpa brot., hibridación interpoblacional, crosses, mejoramiento genético, genetic effects, efectos genéticos, cruzamientos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
Green
gold