Title
Genetic variation in the number of cuttings harvestable and rooted from Vochysia guatemalensis coppiced stumps
Date Issued
07 December 1998
Access level
metadata only access
Resource Type
journal article
Author(s)
Dick J.
Zúňiga G.
Watt A.
Tropical Agricultural Research and Higher Education Center
Abstract
A total of 3029 cuttings were harvested from coppiced stumps of 96 trees representing six provenances of Vochysia guatemalensis. There was significant variation in diameter between provenances with tree stumps from La Ceiba in Honduras being the largest with a mean of 13.4 cm compared with 10.5 cm for Siquirres in Costa Rica. Regression analysis was utilised to determine the influence of provenance and diameter on the numbers of coppice shoots produced by each tree and the subsequent rooting ability of cuttings taken from them. Significantly more shoots and cuttings were produced on trees with larger diameters. There was also a significant provenance influence on shoot and cutting production. The fitted regression model predicted a difference of 20 cuttings from stumps of the same diameter between provenances Florencia, Costa Rica and La Ceiba, Honduras. In contrast to the positive effect of large stump diameter on the number of cuttings produced, the rooting ability of cuttings was negatively influenced by the diameter of the stump. The average rooting percentage of cuttings from individual provenances varied between 30% and 70% with an overall rooting percentage of 64%. The implications of these results for commercial vegetative propagation programmes are discussed.
Start page
225
End page
230
Volume
111
Issue
March 2
Language
English
OCDE Knowledge area
Genética, Herencia
Scopus EID
2-s2.0-0345130108
Source
Forest Ecology and Management
ISSN of the container
03781127
Sponsor(s)
Funding text The authors wish to thank the United Kingdom Overseas Development Administration for financial support to the ITE/CATIE Link Project.
Sources of information: Directorio de Producción Científica Scopus