Genotype-year interaction in Eucalyptus tereticornis and its implications for early selection in the Northern Guinea savanna zone of Nigeria

Otegbeye G.O., . Genotype-year interaction in Eucalyptus tereticornis and its implications for early selection in the Northern Guinea savanna zone of Nigeria. pp. 93-98. ISSN 0302-2935

The growth rate and taper at three different ages namely three five and six years of nine Eucalyptus tereticornis provenances grown in Northern Guinea savanna zone of Nigeria were evaluated. There was a highly significant age effect on the total height dbh and taper of the provenances. There was also highly significant difference in the total height and dbh of the provenances while the differences in their taper were not significant. There was no significant genotype-year interaction in any of the three characteristics examined. The N. Laura Queensland provenance excelled the other provenances in growth rates while Mysore (India) and Papua New Guinea provenances exhibited the least growth rate. Early dominance was maintained in the population of Eucalyptus tereticornis examined. It is therefore possible to select among the various genotypes at the early stages of their growth.

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Abstract

The growth rate and taper at three different ages namely three five and six years of nine Eucalyptus tereticornis provenances grown in Northern Guinea savanna zone of Nigeria were evaluated. There was a highly significant age effect on the total height dbh and taper of the provenances. There was also highly significant difference in the total height and dbh of the provenances while the differences in their taper were not significant. There was no significant genotype-year interaction in any of the three characteristics examined. The N. Laura Queensland provenance excelled the other provenances in growth rates while Mysore (India) and Papua New Guinea provenances exhibited the least growth rate. Early dominance was maintained in the population of Eucalyptus tereticornis examined. It is therefore possible to select among the various genotypes at the early stages of their growth.

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Item Type:	Article
Additional Information:	2 tables; 8 ref. Summary (En)
AGROVOC Term:	EUCALYPTUS TERETICORNIS
AGROVOC Term:	TALLO
AGROVOC Term:	FORMA ARBORESCENTE
AGROVOC Term:	NIGERIA/ INDICE DE CRECIMIENTO
AGROVOC Term:	ALTURA
AGROVOC Term:	DIAMETRO
AGROVOC Term:	GENOTIPOS
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:55
URI:	http://webagris.upm.edu.my/id/eprint/20133

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