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期刊名称: CHILEAN JOURNAL OF AGRICULTURAL RESEARCH
Volume:79    Issue:2        Page:181-189
ISSN:0718-5839,0718-5820

Stability and breeding potential of tomato hybrids期刊论文

作者: Hernandez-Leal E Lobato-Ortiz R Garcia-Zavala JJ Hernandez-Bautista A Reyes-Lopez D
DOI:10.4067/S0718-58392019000200181

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页码: 181-189
被引频次: 0
出版者: INST INVESTIGACIONES AGROPECUARIAS,Chilean Journal of Agricultural Research
期刊名称: CHILEAN JOURNAL OF AGRICULTURAL RESEARCH
ISSN: 0718-5839,0718-5820
卷期: Volume:79    Issue:2
语言: English
摘要: Commercial tomato (Solanum lycopersicum L.) hybrids can be a good germplasm for obtaining new tomato inbred lines. The present study was aimed to investigate the stability of commercial F-1 hybrids under climatic conditions of highlands, to estimate genetic parameters, and evaluate the breeding potential of F-1 hybrids based on the agronomic performance of its F-3 progeny. We employed a breeding scheme based on pedigree selection for the obtainment of 49 F-3 families. Significant differences were found in most of the traits evaluated in both F-1 and F-3 generations, while in the F-2 population only one variable showed significant differences. Heritability ranged from 0.07 to 0.29 for F-1, and from 0.16 to 0.45 for F-3. Most of the F-1 hybrids exhibited values of stability across seasons in at least one trait. However, 'Loreto' and 'Reserva' only exhibited a high stability for yield. Genetic gains ranged from -8.40 to 72.95. Yield per plant was the traits with the highest gain. Based on genetic gains obtained by the F-3 progeny, we concluded that 'Cid', 'Espartaco' and 'Loreto' have a high breeding potential for yield and other traits, which could be exploited by public tomato breeding programs.
相关主题: HETEROSIS, Genetic gain, AGRONOMY, Solanum lycopersicum, PERFORMANCE, AGRICULTURE, MULTIDISCIPLINARY, tomato breeding, SELECTION, stability, heritability, Hybrids, Parameter estimation, Stability, Breeding, Climatic conditions, Fruits, Progeny, Germplasm, Pedigree, Agricultural production, Agronomy, Breeding (reproduction), Population, Inbreeding, Yield, Agriculture, Heritability, Tomatoes, Cultivars,

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