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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Venti Novita Sari
Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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Karakterisasi, Variabilitas Genetik dan Heritabilitas Genotipe Tapak Dara (Catharanthus roseus) Venti Novita Sari; Dwi Wahyuni Ganefianti; Merakati Handajaningsih
Indonesian Journal of Agronomy Vol. 49 No. 3 (2021): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (688.586 KB) | DOI: 10.24831/jai.v49i3.37742

Abstract

Characterization, genetic variability and heritability of periwinkle is crucial for breeders to carry out plant selection to increase the quality and quantity of periwinkle as ornamental plants. The objective of this study was to characterize and assess the genetic variability and heritability values of 13 genotypes of periwinkle. The research was conducted from October 2020 to February 2021 in a screen house located in Perumahan Rakyat, Bengkulu City. The experiment was arranged in a completely randomized design, single factor, consisting of 13 genotypes of C. roseus with three replications. The results showed a variation among 13 genotypes on leaf shape (oval and oblong); type of stem growth (hanging and upright); the main color of the corolla (pale pink, peach, white, pink fanta, apricot, pink taffy, lavender, magenta, rose pink, reddish-pink, pink, baby pink, orange); and the middle color of the corolla (pale pink, peach, white, fanta pink, red, french rose, baby pink, and orange). Genetic variance estimates among 13 genotypes of periwinkle were 0.01-32.15 (narrow), and the heritability estimates of the traits were low-medium (2-50%). The estimations of genetic gain which has high values are number of florets (23%) and number of branches (20%). Keywords: qualitative character, quantitative character and ornamental plant
Co-Authors Dwi Wahyuni Ganefianti Merakati Handajaningsih