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Title: | Genetic variability and inheritance of quantitative traits in cupressus lisitanica |
Authors: | Obiri, J.A.F |
Issue Date: | 2002 |
Publisher: | KEFRI |
Abstract: | Cupressus lusitanica Miller is an important softwood in Kenyan industrial forestry. Cummulative analysis of variance data was collected from two sites within Kenya (Muguga and Elburgon) and used to estimate genetic and environmental variance components for height, diameter, stemform and canker resistance in cypress. Heritability estimates suggests that height, diameter and hence volume may be improved by family (progeny) selection. However stemforms and canker resistance may be best enhanced by individual selection. Genetic and environmental correlation coefficient between the traits were obtained using covariance components from analysis of covariance. Estimates of genetic correlation coefficient are positively correlated for all the four traits. Thus selection for one trait m~y be improved by simultaneous selection of any other trait. However the genetic correlation coefficient found between diameter and stemforms limits the use of diameter as a selection parameter when selection is aimed at an overall increase in economic value |
URI: | http://10.10.20.22:8080//handle/123456789/486 |
Appears in Collections: | Articles |
Files in This Item:
File | Description | Size | Format | |
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GENETIC VARIABILITY AND INHERITANCE OF QUATITATIVE TRAITS IN CUPRESSUS LUSITANICA.pdf | 243.19 kB | Adobe PDF | View/Open |
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