Genotypic and phenotypic variance of Impatiens platypetala collected from java and Sulawesi.

Impatiens is a crucial landscaping plant. But, the lack of available cultivars has made the Indonesian Impatiens breeding initiative critical. Our study aimed to inventory and analyze the relationship of plant characters and genotypes of 33 Impatiens platypetala accessions collected from Java and Sulawesi. Our experiment began by planting the accession in a completely randomized block design. The agronomic characters, plant height (PH), canopy width (CW), leaf length (LL), leaf petiole length (LPL), and leaf diameter (LD), were measured. We also noted the adaxial site's morphological characteristics, such as flower type, secondary floral colour distribution, flower eye-zone size, and floral colour. All characters were analyzed using multivariate analysis of variance. The value of phenotypic variance (GCV), genotypic variance (PCV), estimation of broad-sense heritability (H2), and genetic progress (GAM) were then calculated. Besides, we run correlation analysis, PCA analysis, and degree of similarity between species pairs to understand the relationship between characters and genotypes. We discovered a high correlation between PH and CW. Our genotype clustering based on agronomic data suggested variances in genotype characteristics. PH, CW, and LL have high GCV, PCV, H2, and GAM. These characters can be used as breeding program criteria to expedite producing a specific variety of Impatiens, such as a bedding plant with a specific plant height and canopy size. Nevertheless, adding I. plattypetalla accessions with more observed agronomic and morphological characters is needed to provide further information for breeding programs or biological research in general. [ABSTRACT FROM AUTHOR]