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Your search keyword '"Kirana, Rinda"' showing total 3 results
Start Over Author "Kirana, Rinda" Topic hot peppers
3 results on '"Kirana, Rinda"'

1. Enhancing traits in hot pepper through single cross-hybridization: A study of phenotypic and genotypic changes.

Author

Kirana, Rinda, Mulya, Karden, Lestari, Puji, Utami, Dwinita W., Nugroho, Kristianto, Rosliani, Rini, Deswina, Puspita, Gunaeni, Neni, Moekasan, Tonny K., Musaddad, Darkam, Terryana, Rerenstradika T., Satyawan, Dani, Syukur, Muhammad, Faizal, Ahmad, and Ahmadi, Noor R.

Subjects
*PHENOTYPIC plasticity, *HOT peppers, *BELL pepper, *GENOTYPES, *CLUSTER analysis (Statistics), *PEPPERS, *SECONDARY metabolism
Abstract

The availability of hot pepper (Capsicum frutescens L.) hybrid varieties is limited compared to those in chili, bell or sweet pepper hybrid. Heterosis, heterobeltiosis, and reciprocal are critical indicators in F1 hybrids, valuable for developing hybrid varieties. This research aimed to evaluate both phenotypic and genotypic changes in F1 hybrids from single cross-hybridization. The study observed 53 phenotypic characteristics encompassing morphological (plant, leaves, flowers, and fruits), four production-related (fruit weight, fruit number per plant, fruit weight per plant, and yield per hectare), and 10 chemical characteristics (proximate, simple sugar, and secondary metabolite). Genotypic changes were analyzed using ten SSR markers. Employing a randomized complete block design, the study included two parents, F1, and reciprocal F1 hybrids, across four treatments with two replicates each. Phenotypic changes were analyzed using ANOVA and comparison test, while genotypic changes were analyzed through cluster analysis. Result indicated heterosis in 12 characters, heterobeltiosis in eight characters, and reciprocal effects in eight characters. Significant improvements were noted in key characteristics such as plant height, fruit maturity, fruit weight per plant, yield per hectare and vitamin C. Genotypic evaluation revealed distinct genetic differences between F1 and its parents, including the reciprocal F1. These phenotypic and genotypic changes suggest that hot pepper could be more productive and of higher quality when developed as a hybrid variety, indicating promising avenue for future breeding programs. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Performance of introduced lines based on morphological markers for diversity enrichment of Indonesian chili pepper (Capsicum annuum L.) varieties.

Author

Kirana, Rinda, Hermanto, Catur, Reflinur, and Barchenger, Derek W.

Subjects
*PEPPERS, *GENETIC variation, *CULTIVARS, *GERMPLASM, *HOT peppers, *CAPSICUM annuum
Abstract

The success and sustainability of chili pepper breeding depends upon diversity in genetic diversity resources. The genetic diversity can be increased through the introduction of material from other countries. The present study aimed to measure the contribution of introduced lines to enrich diversity of IVEGRI's breeding program based on morphological characterization. The experiment was carried out at IVEGRI research station from July to December 2020, and arranged with two replications in a randomized block design. The treatments involved 60 genetic materials, 30 of which were derived from Indonesia and other 30 lines were introduced from World Vegetable Center. Morphological traits were measured following the guidelines for testing the distinctness, uniformity, and stability from Indonesian Plant Variety Protection Center, Ministry of Agriculture. Genetic diversity analysis was conducted using the Euclidean dissimilarity coefficient. The results showed an increase of 88.2% in genetic distance after introduction. The unique morphological characters, such as shortened internodes, hairiness of nodes, leaf shapes, secondary color of corolla, fruit color before maturity, fruit color at maturity, and fruit attitude, were observed from the introduced chili pepper lines reflecting that those could be beneficial for future improvement of chili pepper breeding program. [ABSTRACT FROM AUTHOR]

Published
2022
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3. Hybrid purity assessment in F1 hybrids segregating for phytophthora root rot resistance genes of chili pepper (Capsicum annuum L.).

Author

Fatimah, Reflinur, Prasetiyono, Joko, Wartono, Nugroho, Kristianto, Kirana, Rinda, Satyawan, Dani, Terryana, Rerenstradika Tizar, Polosoro, Aqwin, Lestari, Puji, and Tasma, I. Made

Subjects
ROOT rots, PEPPERS, HARVESTING time, PHYTOPHTHORA, PHYTOPHTHORA capsici, CAPSICUM annuum, HOT peppers
Abstract

Root rot caused by Phytophthora capsici is the most devastating disease in Indonesia causing up to 100% yield loss. Breeding resistant cultivars is the most effective strategy to reduce losses caused by this disease. This study aimed to (1) determine the parentage confirmation and genetic relatedness of the parents, (2) genotype two F1 populations using a subset of six markers, and (3) measure the horticultural characteristics of two F1 populations. Tanjung-2 and Ciko varieties were used as recurrent parent (RP) in a cross with donor parent (DP) CM334 having Phytophthora root rot resistance gene. Molecular analysis of the parents was done using 33 markers linked to the resistance genes of which 17 markers demonstrated clear polymorphism. The phylogenetic tree classified the parents into two groups, i.e. group 1 consisted of two RPs (Ciko and Tanjung-2) and group 2 consisted of CM334. Clustering analysis clearly revealed that genetic materials used in this study were not closely related. Genotyping using six polymorphic markers showed that the marker-hybrid purity index ranged from 47.17 to 100% for F1 Tanjung-2/CM334 and 80 to 100% for F1 Ciko/CM334. The selected F1 was self-hybridized to develop F2 population. Horticulture characterization showed that branch number per plant, fruit diameter, fruit weight, and total fruit weight per plant of F1 Ciko/CM334 were higher than F1 Tanjung- 2/CM334. Meanwhile, for plant height, canopy diameter, flowering time, and harvesting time the F1 Tanjung-2/CM334 demonstrated better performances than the F1 Ciko/CM334. The populations developed from this study can be used in genetic linkage mapping of genes conferring resistance to P. capsici. [ABSTRACT FROM AUTHOR]

Published
2022
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