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ANALYSIS OF THE GENOTYPE × ENVIRONMENT INTERACTION IN MUSA TRIALS

Published online by Cambridge University Press:  01 April 1998

I. DE CAUWER  and
R. ORTIZ
I. DE CAUWER
Affiliation:
Plantain and Banana Improvement Program, International Institute of Tropical Agriculture, High Rainfall Station, Onne, Rivers State, Nigeria
R. ORTIZ
Affiliation:
Plantain and Banana Improvement Program, International Institute of Tropical Agriculture, High Rainfall Station, Onne, Rivers State, Nigeria
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Abstract

Plantain hybrids and landraces, and banana cultivars (Musa spp. L.) were evaluated for three years in the plant and ratoon crops at three locations in the humid lowland forest (Mbalmayo and Onne) and derived savanna (Ibadan) agro-ecozones of sub-Saharan Africa. Additive main effects and multiplicative interaction (AMMI) models accounted for a significant percentage of the genotype × environment interaction (GE) affecting bunch weight (kg plant−1) and yield potential (t ha−1 a−1). Obino l'Ewai, a plantain landrace, showed little GE for bunch weight, whereas the exotic cooking banana cultivar Cardaba had the most stable yield potential as revealed by the biplots of the GE analysis (AMMI-2 biplots). Plantain hybrids achieved high yield potential due to their short growth cycle. The high yield potential of the cooking bananas was mainly the result of their fast sucker development.

Type
Research Article
Information
Experimental Agriculture , Volume 34 , Issue 2 , April 1998 , pp. 177 - 188
Copyright
© 1998 Cambridge University Press

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