Revista Chapingo Serie Ciencias Forestales y del Ambiente
Universidad Autónoma Chapingo
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Revista Chapingo Serie Ciencias Forestales y del Ambiente
Volume VI, issue 2, July - December 2000
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SELECCIÓN FAMILIAL EN PLANTAS DE Gliricidia sepium (Jacq.) Kunth ex Walp. EN CONDICIONES DE VIVERO PARA TOLERANCIA A LA SALINIDAD DEL SUELO
FAMILY SELECTION FOR SALT TOLERANCE IN Gliricidia sepium (Jacq.) Kunth ex Walp. SEEDLINGS IN THE NURSERY

L. Mendoza-Caballero; J. Jesús Vargas-Hernández; C. Ramírez-Herrera

http://dx.doi.org/1111

Received: 2001-03-28

Accepted: 2001-05-07

Available online: / pages.131-136

 

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  • descriptionAbstract

    Seedlings of 47 families of Gliricidia sepium (Jacq.) Kunth ex Walp. were exposed to two levels of soil salinity (S0= 0 gL-1 and S1= 45 gL-1 of NaCl) with the objective of evaluating the response in seedling growth and to determine the degree of genetic control for seedling growth and biomass. Most growth traits were negatively affected by soil salinity. Seedling survival, foliage retention and biomass accumulation were the most affected traits. However, with the exception of stem diameter, a broad genetic variation was found in all growth and survival traits. Height growth showed the highest heritability both on individual and family basis (h2 i= 0.86 and h2 F= 0.88). All other traits had low individual-tree but relatively high family-mean heritability values; this implies that family selection would offer a good response to selection. Seedling survival under salinity conditions was positively associated to several growth traits (foliage retention, aerial and total biomass, and root length). In spite of this, families selected by their higher survival under salinity conditions were not always the best for all growth traits, except four families, which had at least four additional superior traits.

    Keyworks: genetic variation, heritability, early evaluation, adaptability.
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  • starCite article

    Mendoza-Caballero, L., Vargas-Hernández, J. J.,  &  Ramírez-Herrera, C. (2000).  FAMILY SELECTION FOR SALT TOLERANCE IN Gliricidia sepium (Jacq.) Kunth ex Walp. SEEDLINGS IN THE NURSERY. Revista Chapingo Serie Ciencias Forestales y del Ambiente, VI(2), 131-136. http://dx.doi.org/1111