Morphological Evaluation of Gerbera Genotypes in Different Environments under Western Himalayan Conditions

Le résumé fourni par la source

Gerbera is one of the most important cut flowers and present attempt was made to evaluate the mean performance and stability parameters of gerbera genotypes. Eight genotypes of gerbera were evaluated over four different environments in Western Himalayan during 2020 and 2021 by using a randomized complete block design. Data were recorded on flower diameter (cm), number of leaves per plant, number of flowers per plant, and stalk length (cm). Highly significant differences (p<0.05) were observed for floral and morphological traits among the genotypes. The pooled analysis of variance showed a significant difference (p<0.05) among genotypes, environments, and genotype-environment interaction for flower diameter. A significant G×E interaction was observed for yield-contributing trait like flower diameter, indicating the difference in genotype performance over the environments. Flower diameter is of economically important parameter in gerbera. The mean performance of genotypes revealed that genotype CSIR-IHBT-MS-12 had performed superior for flower diameter (cm). The genotype CSIR-IHBT-Gr-PS-03 produced a maximum number of leaves and flowers per plant. The genotype CSIR-IHBT-YS-20 was observed with higher stalk length. Significant GEI interaction for flower diameter allows stability analysis of genotypes. The Eberhart and Russell model of based stability analysis confirmed that the genotype CSIR-IHBT-MS-12 had shown stable performance over environments for trait flower diameter. Therefore, it was confirmed that the genotype CSIR-IHBT-MS-12 was ideal with higher mean performance and stability for flower diameter over the environments. Thus, this genotype can be used further in gerbera breeding and improvement programs

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