Authors :
Zanzam, M.S; Jandong, A.E
Volume/Issue :
Volume 8 - 2023, Issue 6 - June
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://tinyurl.com/4ffs4kv3
DOI :
https://doi.org/10.5281/zenodo.8143114
Abstract :
Twelve potato genotypes comprising of
improved and local varieties were evaluated for genetic
potentials in agronomic, yield and internal qualities in
Nguroje area of the Mambila Plateau, Taraba State,
during the rainy season of 2022. The experiment was
arranged in a Randomized Complete Block Design,
which was replicated three times. Results of analysis of
variance showed significant difference among the
genotypes for all the traits except specific gravity,
indicating the existence of significant variation within
the genotypes. Phenotypic coefficient of variation was
generally higher than their corresponding genotypic
coefficient of variation revealing the influence of
environment on expression of the characters. Higher
phenotypic and genotypic coefficient of variation were
recorded for starch content (44.30, 41.55), number of
leaves per plant (35.34, 31.09), and leaf length (34.44,
26.44).Result of cluster analysis revealed that the
varieties were grouped into 3 main clusters.Genotypes
falling in cluster 1 and 3 showed highest mean values for
yield and internal quality traits, while genotype in
cluster 2 recorded highest for growth characters. The
diversity exhibited among the genotypes signifies its
potential for effective breeding.
Keywords :
Potato, Tuber, Yield, Genotypes, Phenotypic coefficient of variation, genotypic coefficient of variation
Twelve potato genotypes comprising of
improved and local varieties were evaluated for genetic
potentials in agronomic, yield and internal qualities in
Nguroje area of the Mambila Plateau, Taraba State,
during the rainy season of 2022. The experiment was
arranged in a Randomized Complete Block Design,
which was replicated three times. Results of analysis of
variance showed significant difference among the
genotypes for all the traits except specific gravity,
indicating the existence of significant variation within
the genotypes. Phenotypic coefficient of variation was
generally higher than their corresponding genotypic
coefficient of variation revealing the influence of
environment on expression of the characters. Higher
phenotypic and genotypic coefficient of variation were
recorded for starch content (44.30, 41.55), number of
leaves per plant (35.34, 31.09), and leaf length (34.44,
26.44).Result of cluster analysis revealed that the
varieties were grouped into 3 main clusters.Genotypes
falling in cluster 1 and 3 showed highest mean values for
yield and internal quality traits, while genotype in
cluster 2 recorded highest for growth characters. The
diversity exhibited among the genotypes signifies its
potential for effective breeding.
Keywords :
Potato, Tuber, Yield, Genotypes, Phenotypic coefficient of variation, genotypic coefficient of variation
