ESTIMACIÓN DE PARÁMETROS GENÉTICOS EN DOS CICLOS DE CRECIMIENTO DE G/iricidia sepium (Jacq.) Walp.

Authors

  • Manuel Marín Quintero INIFAP CIR-Sureste. C.E. Chiná, Km. 16.5 carretera Campeche-Pocyaxum, C.P. 24000, Campeche
  • J. Jesús Vargas Hernández Especialidad Forestal. Instituto de Recursos Naturales. Colegio de Postgraduados. Montecillo, Edo. de México
  • Jesús Jasso Mata Especialidad Forestal. Instituto de Recursos Naturales. Colegio de Postgraduados. Montecillo, Edo. de México
  • Javier López Upton Especialidad Forestal. Instituto de Recursos Naturales. Colegio de Postgraduados. Montecillo, Edo. de México

Keywords:

Genetic correlations, stability, Gliricidia sepium, heredability, progeny test, growth selection

Abstract

In a Gliricidia sepium provenance and progeny essay established in the state of Veracruz, México, the genetic control (heredability) and phenotypic and genetic relationships between height, biomass production and plant architecture were assessed during two growth cycles in arder to determine the stability of genetic parameters between cycles. Seventy nine half-sib families from 9 seed sources were included in the field experiment. During the first growth cycle, individual-tree heredability for plant height (h = 0.35) was higher than for the other growth characteristics. Family heredability (h21) was higher than individual-tree heredability (h ) in ali characteristics. Both h 1 and h,  decreased significantly from the first to the second cycle, associated to variation between plants in sprouting capacity and rate. The genetic and phenotypic correlations between height, growth, diameter and plant biomass were positive in both cycles. In this case, selection of the best families, regardless of seed source, could give a right response to selection. 

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Published

2020-10-30

How to Cite

Marín Quintero, Manuel, J. Jesús Vargas Hernández, Jesús Jasso Mata, and Javier López Upton. 2020. “) Walp”. Revista Mexicana De Ciencias Forestales 24 (86). México, ME:21-35. https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/933.

Issue

Vol. 24 No. 86 (1999): Ciencia Forestal en México

Section

Scientific article

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