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All Journal Plantropica: Journal of Agricultural Science Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Khairunissa, Asya Zhafira
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Agriculture, Biological Sciences & Forestry Engineering

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Similarity Test Among Several Accessions of Mutant (M4) Cayenne Pepper(Capsicum frutescens L.) Based on Fruit Qualitative Character Makhziah, Makhziah; Soedjarwo, Djarwatiningsih P; Khairunissa, Asya Zhafira
Plantropica: Journal of Agricultural Science Vol. 10 No. 1 (2025): Februari
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpt.2025.010.1.6

Abstract

Cayenne pepper (Capsicum frutescens L.) is one of Indonesia's leading horticultural commodities. The decline in cayenne pepper production does not match the increasing level of consumer demand. Gamma-ray irradiation-induced mutations are one of the methods used in plant breeding to increase genetic diversity and develop new superior varieties. Cayenne pepper plants exposed to gamma-ray irradiation undergo character changes, resulting in mutant accession populations with diverse characteristics. A similarity test of mutant accessions is conducted to determine the genetic distance between accessions and their parents. This study aims to identify accessions with the greatest genetic distance to obtain good candidate parents for crossing. The research was conducted at the Faculty of Agriculture, National Development University 'Veteran' East Java. The experimental design used was a Randomized Block Design (RBD) with five replications and one factor, namely, 10 mutant cayenne pepper (M4) accessions or lines resulting from gamma-ray irradiation-induced mutations. The results of the similarity test in the form of a dendrogram show that the 10 mutant accessions, along with their parents and comparisons, exhibited a similarity coefficient range of 56% to 92%. The lowest similarity coefficient is found in accessions AU4 and AU8, which is 56%. Accessions AU4 and AU8 have the furthest genetic distance from accession AU9, and these accessions have the potential as parental candidates in future crossings to produce offspring with enhanced traits and diversity.
Similarity Among 10 Cayenne Pepper (Capsicum frutescens L.) Mutant Accessions Resulted from Gamma-Ray Irradiation Khairunissa, Asya Zhafira; Makhziah, Makhziah; Soedjarwo, Djarwatiningsih Poengky
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1434-1440

Abstract

Cayenne pepper (Capsicum frutescens L.) is a horticultural crop which production is not comparable to the level of public consumption. Chili plants induced by gamma irradiation experienced character changes, which caused the population of mutant accessions to have a diversity of characters. The similarity test of mutant accessions was carried out to determine the relationship distance between accessions. The research was carried out at the Faculty of Agriculture, UPN "Veteran" East Java, Surabaya City, with a geographical location at 7⁰ 9' - 7⁰ 21' South Latitude and at 112⁰ 36' - 112⁰ 54' East Longitude. The experimental design used was a Completely Randomized Design, with 3 replications of each, also using one factor, namely mutant ( ) or genotype resulting from gamma ray irradiation mutations of cayenne pepper. Heritability tests were also carried out in this study. The results of the heritability test showed that the characteristics of plant height, fruit length, fruit diameter, fruit weight per plant, and number of fruit per plant had high heritability values, namely above 30%. The result of similarity test visualized by the dendogram shows that 10 mutant accessions and the parental have a similarity coefficient ranging at 21% to 78%. The lowest similarity coefficient is owned by M2 accession, specifically at 21%.
Co-Authors Soedjarwo, Djarwatiningsih P Soedjarwo, Djarwatiningsih Poengky