Stability Analysis of BC2 Abaca (Musa textilis Nee) Hybrids Across Different Locations in
the Philippines
Mark Anthony L. Parducho1*, Ramarie Ann B. Rama2 and Antonio G. Lalusin2
1Agricultural Systems Institute, College of Agriculture and Food Science (CAFS), University of the Philippines Los Baños (UPLB),
College, 4031, Laguna, Philippines 2Institute of Crop Science, CAFS, UPLB, College, 4031, Laguna, Philippines.
*Corresponding author, mlparducho@up.edu.ph
Abstract
Performances of the three abaca genotypes were evaluated in seven locations in the
Philippines. Yield stability was determined using both parametric and non-parametric method
and GGE biplot. BC2-7 had the best performance with regard to growth-related agronomic
characters. CTRL outperformed the hybrids in terms of prolificacy though this could be
attributed to sudden shift of growth from vegetative to reproductive stage due to stresses.
Moreover, CTRL had the best fiber yield and fiber recovery among the three due to high tensile
strength of pure abaca compared to the two hybrids. In addition, extreme values observed in
control in some environments affected the overall result for yield-related characters. Eberhart
and Russell’s stability measures identified BC2-2 as the more stable genotype and revealed
that hybrids could perform better than CTRL under less favorable environment. Kang, and
Nassar and Huehn’s stability measures identified BC2-7 as the most stable genotype. GGE
biplots provided potential mega-environments for each genotype and ranking of environment
showed the best growing location for abaca. Aside from these, biplots also showed that BC2-7
is the most stable genotype.
Keywords: abaca, GGE biplot, multilocation, non-parametric, stability analysis
Vol 45 - 3 December 2020