SRIANI SUJIPRIHATI
Departemen Agronomi dan Hortikultura, Institut Pertanian Bogor, Jl. Meranti, Kampus IPB Darmaga, Bogor 16680

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Parametric Stability Analysis for Yield of Chili Pepper (Capsicum annuum L.) Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi; Kusumah, Darmawan Asta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 1 (2011): 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 (206.275 KB) | DOI: 10.24831/jai.v39i1.13185

Abstract

The objective of this study was to identify the stability of seven hybrid chili pepper genotypes that have been developed at Genetics and Plant Breeding Laboratory, Department of Agronomy and Horticulture IPB. The study used eight yield stability analyses and Additive Main Effect Multiplicative Interaction (AMMI) methods. The design was randomized complete block design with three replications as blocks using the genotypes of IPB CH1, IPB CH2, IPB CH3, IPB CH5, IPB CH25, IPB CH28, IPB CH50, and fi ve commercial varieties, i.e. Adipati, Biola, Gada, Hot Beauty and Imperial. These genotypes were planted at six different locations at Ciherang, Leuwikopo, Tajur, Subang, Rembang and Boyolali. IPB CH28, IPB CH25, IPB CH1 and IPB CH2 were more stable cultivars than IPB CH3, IPB CH5, IPB CH50, Adipati and Biola, which had 10, 9, 8, and 6 out of all 10 stability statistics used, respectively. IPB CH28 and IPB CH25 being the most stable cultivars. IPB CH3 was the best genotype compared to the checks based on pair wise GxE interaction test. Based on post predictive success, the AMMI2 model was able to explain 85.51% of the interaction-infl uenced variation. The stable genotypes in six locations were IPB CH1, IPB CH2, IPB CH25, IPB CH28, and IPB CH50. IPB CH3 genotype was locally adapted for Subang.
Pengaruh Perlakuan Ethyl Methane Sulfonate pada Tanaman Cabai (Capsicum annuum L.) dan Ketahanannya terhadap Chilli Veinal Mottle Virus (ChiVMV) Manzila, Ifa; Hidayat, Sri Hendrastuti; Mariska, Ika; Sujiprihati, Sriani
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (165.474 KB) | DOI: 10.24831/jai.v38i3.14250

Abstract

Ethyl Methane Sulfonate (EMS) may induce mutation leading to somaclonal variation if it is used at the appropriate combination of EMS concentration and exposure time. Variation in somaclonal might be valuable as a source of resistance to plant pathogens including plant viruses. This study was aimed 1) to determine the optimum EMS concentration and incubation time that may induce somaclonal variation in chilli pepper; and 2) to evaluate the resistance of the somaclone to ChiVMV infection. Shoot-tip explants of fi ve chilli pepper genotypes (Jatilaba, ICPN 12#4, PBC495, Helem, and Gelora) were treated with EMS at combination of different concentrations (0.25%, 0.5% 1.0% and control), and incubation time (15, 30, 60 min). Subsequently, each explant was grown in multiplication media (MS media + 5 mg L -1 BAP + 0.5 mg L-1 TDZ), rooting media (MS media + 1 mg L-1 NAA), and acclimatization media (mixture of soil : sand : compost 2:1:1 w/w). Our results showed that the higher EMS concentration and the longer incubation period the smaller the number of survive explants. The highest survival rate 20.4 % was achieved with 0.5% EMS in combination with 60 min incubation period. This treatment combination also showed induction of phenotypic variation. Two somaclonal plants derived from Gelora genotype, designated as somaclones K1 and K2, survived until fruit development and maturation. A total of 245 progenies of K1 and 243 progenies of K2, respectively were evaluated for their resistance to ChiVMV infection through mechanical inoculation using ChiVMV-Cikabayan isolate. Following the detection of ChiVMV using DAS-ELISA, it was confi rmed that 4.09% of the somaclonal progenies were resistance to ChiVMV. Keywords: Capsicum annuum L., ChiVMV, ethyl methane sulfonate, induce mutation, resistance
Combining Ability of Several Introduced and Local Chilli Pepper (Capsicum annuum L.) Genotypes and Heterosis of the Offsprings Sitaresmi, Trias; Sujiprihati, Sriani; Syukur, Muhamad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (152.689 KB) | DOI: 10.24831/jai.v38i3.14251

Abstract

The objective of the study was to identify the combining ability of several introduced and local chilli genotypes and heterosis effects of their offsprings, as a result of the hybridisation process. This information will be used for production of hybrid varieties. The study was conducted from November 2006 to May 2007 at Tajur experimental station, Bogor, West Java, Indonesia. The fi ve parents with their ten F1 hybrids were evaluated in a randomized complete block design (RCBD) with three replications. The results showed that hybrid IPB C15 x IPB C19 had the highest fruit weight per plant, and hybrid IPB C8 x IPB C19 had the highest heterosis for this character. Hybrid IPB C8 x IPB C15 has highest number of fruits per plant and showed heterosis effects. Crosses among introduced and local genotypes resulted a high heterosis values. Additive variance of weight and number of fruits per plant were greater than the dominant variance. IPB C19 had the best general combining ability for fruit weight per plant character. Keywords: capsicum, combining ability, heterobeltiosis, heterosis