PERFORMANCE EVALUATION AND VARIABILITY ANALYSIS FOR MAJOR GROWTH AND FLOWERING TRAITS OF Lilium longiflorum THUNB. GENOTYPES

Rameshwar  Rai; Jong Hwa  Kim

doi:10.18006/2021.9(4).439.444

Authors

Rameshwar Rai College of Agriculture and Life Sciences, Department of Horticulture, Kangwon National University(KNU), Chuncheon 24341, Korea https://orcid.org/0000-0002-1172-558X
Jong Hwa Kim Oriental Bio-herb Research Institute, Kangwon National University, Chuncheon 24341, Korea https://orcid.org/0000-0002-9300-6465

DOI:

https://doi.org/10.18006/2021.9(4).439.444

Keywords:

L. longiflorum, Genotypic coefficient of variation, Phenotypic coefficient of variation, Heritability, Genetic advance

Abstract

The performance evaluation and variability estimation are some of the most important basic steps in any breeding scheme and are usually taken as a pre-breeding task. This experiment was carried out to evaluate the performance and estimate the variability for major growth and flowering traits of Sixteen Lilium longiflorum Thunb genotypes in a randomized complete block design (RCBD) with three replications. The estimated analysis of variance (ANOVA) demonstrated prevailing significant variability for studied ten growth and flowering traits of all 16 genotypes. The experiment was conducted to quantify the genetic variability, heritability, and genetic advance as a percentage of the mean (GAM), for understanding the breeding potentiality of L. longiflorum genotypes based on their performance for growth and flowering traits, so that pre-breeding scheme could be executed properly. The estimated genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) value, along with heritability estimate and GAM, revealed that almost all studied traits besides flower diameter were controlled by additive gene action. For these traits, improvement would be possible through the selection after cross-breeding among these genotypes. The choice of genotypes for the hybridization scheme could be made based on the mean performance of those genotypes for the particular traits of the breeding scheme.

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