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All Journal Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Zuriat AGRIVITA, Journal of Agricultural Science
Rahmi Yunianti
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Agriculture, Biological Sciences & Forestry Education

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NONPARAMETRIC STABILITY ANALYSIS OF YIELD FOR NINE CHILI PEPPER (Capsicum annuum L.) GENOTYPES IN EIGHT ENVIRONMENTS Rahadi, Vitria Puspitasari; Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi
AGRIVITA, Journal of Agricultural Science Vol 35, No 2 (2013)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

 The objectives of this study were to compare nonparametric stability measures, and to identify promising high yield and stability of chili pepper (Capsicum annuum L.) genotypes in eight environments. In every environment, a Randomized Complete Block Design was used with three replications. The method of Nassar and Huehn, Kang, Fox, and Thennarasu was used to analyze the stability and high yield. Spearman’s correlation and Principal Component analysis distinguishes the methods based on two different concepts of stability: the static (biological) and dynamic (agronomic) concepts. The top method was found to be the dynamic stability. Meanwhile, the methods of Si1, Si2, Si3, Si6, Npi1, NPi2, NPi3 and NPi4 were found to be the static stability. Based on the ranking frequency stability of the nonparametric method, the genotypes with the highest frequency of static stability ranking were genotypes IPB002003, IPB002046, IPB009019 and Tit Super, whereas IPB009002 and Tombak were categorized as those of dynamic stability. Genotype IPB120005 and IPB019015 were less adaptable in the multiple environments tested. It shows that the genotypes were specific in certain environments. IPB120005 had high yield and specific location in Boyolali in dry season and IPB019015 genotype was specific in Bogor in wet season. Keywords: chili pepper, nonparametric stability, high yield, dynamic stablility
Karakterisasi Morfologi Bunga, Buah, dan Kualitas Buah Tiga Genotipe Pepaya Hibrida Shalati Febjislami; Ketty Suketi; Rahmi Yunianti
Buletin Agrohorti Vol. 6 No. 1 (2018): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (312.736 KB) | DOI: 10.29244/agrob.v6i1.17488

Abstract

Percobaan dilaksanakan pada bulan Januari-Juni 2012 di Teaching Farm Tajur dan Laboratorium Pasca Panen Baranang Siang, PKHT-IPB -Bogor. Tujuan penelitian adalah mengetahui karakter morfologi bunga, buah dan kualitas buah tiga genotipe pepaya hibrida, yaitu IPB H91, IPB H93 dan IPB H39. Parameter yang diamati yaitu karakter kualitatif dan kuantitatif bunga serta buah, uji kualitas fisik dan kimia buah, serta uji organoleptik. Hasil percobaan menunjukkan ketiga genotipe pepaya hibrida memiliki keunggulan karakter yang berbeda-beda. IPB H91 memiliki keunggulan tangkai bunga yang panjang serta jumlah bunga per buku dan buah yang banyak, bobot daging buah, persentase bagian yang dapat dimakan dan ketebalan daging buah yang besar, daging buah yang keras dan asam tertitrasi total yang rendah. IPB H93 memiliki keunggulan jumlah bunga yang banyak, jumlah biji per buah yang sedikit dan nilai padatan terlarut total yang tinggi. IPB H39 memiliki keunggulan jarak antar ruas bunga yang pendek, kulit buah yang keras dan kandungan vitamin C yang tinggi. Hasil uji organoleptik juga menunjukkan genotipe IPB H39 memiliki bentuk dan rasa yang lebih disukai oleh panelis. Genotipe IPB H91 dapat dijadikan alternatif untuk memperoleh pepaya hibrida karena memiliki banyak karakter unggul pada fase generatifnya daripada kedua genotipe lainnya.
Pemanfaatan Sumber Daya Genetik Lokal dalam Perakitan Varietas Unggul Cabai (Capsicum annuum) Tahan Terhadap Penyakit Antraknosa yang Disebabkan oleh Colletotrichum sp Muhamad Syukur; Rahmi Yunianti; . Rustam; . Widodo
Jurnal Ilmu Pertanian Indonesia Vol. 18 No. 2 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The use of resistant varieties based on local resources is one way to solve the problem of anthracnose disease. This study aims to identify the species of anthracnose isolates (Colletotricum accutatum, C. gloeosporioides, and C. capsici) from the various centers of chili production through the characterization of conidia, get the genotypes that are resistant to anthracnose disease, and get information about resistance to anthracnose disease of chili pepper lines. Research activities include morphological characterization of Colletotrichum isolates, screening of resistance the chili pepper lines to anthracnose disease, and screening of resistance the pepper genotypes of exploration results to anthracnose disease. The results showed that the isolates found in the field consist of 3 species, namely C. capsici, C. acutatum, and C. gloesporioides. Forty two isolates of 67 isolates were C. capsici, the rest were C. acutatum or C. gloesporioides. The chili pepper lines were tested, including the criteria for moderate to highly susceptible to anthracnose diseases caused by C. acutatum. IPB C15 Genotype was consistently more resistant to anthracnose caused by C. acutatum as compared to 27 other genotypes.
Pendugaan Komponen Ragam, Heritabilitas dan Korelasi untuk Menentukan Kriteria Seleksi Cabai (Capsicum annuum L.) Populasi F5 Muhamad Syukur; Sriani Sujiprihati; Rahmi Yunianti; Khaerin Nida
Jurnal Hortikultura Indonesia Vol. 1 No. 2 (2010): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1263.198 KB) | DOI: 10.29244/jhi.1.2.74-80

Abstract

ABSTRACTInformation on genetic variability and correlation between quantitative characters with yield are important for support the selection program. The objective of the research was to estimate the genetic variability, heritability, and path analysis on agronomic characters to determine the selection criteria in the chili. This research was conducted at Research Station of Leuwikopo, Darmaga, Bogor from November 2009 until May 2010. This research observed all populations i.e. F5 population: 320 plants, IPB C2 population: 20 plants, and IPB C5 population: 20 plants. The results showed that total fruit weight, thick and fruit diameter, middle fruit diameter, blossom end fruit diameter, fruit weight, and days to flowering have a high broad sense heritability . High coefficient of genetic variability values were obtained ini number of fruits per plant, fruit wei ght, stem diameter, fruit diameter, and fruit weight. Based on the heritability, genetic variability, correlations analysis and path analysis, characters that can be used as selection criteria in this study is the number of fruit per plant, fruit weight, and fruit diameter.Key words: genetic variability, heritability, path analysis, selection
Seleksi Galur Hasil Persilangan Cabai Lokal dan Introduksi Muhammad Ridha Alfarabi Istiqlal; Muhamad Syukur; Rahmi Yunianti; , Deviona
Zuriat Vol 22, No 1 (2011)
Publisher : Breeding Science Society of Indonesia (BSSI) / PERIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/zuriat.v22i1.6845

Abstract

Seleksi peubah tanaman cabai secara visual dengan memilih fenotipe yang dianggap baik belum dapat memberikan hasil yang memuaskan tanpa berpedoman pada nilai-nilai parameter genetik, yaitu: nilai heritabilitas, ragam genetik, ragam fenotipe dan koefisien keragaman genetik (KKG). Dalam kegiatan seleksi terhadap daya hasil, menggunakan satu peubah saja kurang efektif dan seleksi akan efektif bila menggunakan beberapa peubah secara simultan menggunakan indeks seleksi. Penelitian ini bertujuan untuk menduga parameter genetik, variabilitas dan heritabilitas beberapa karakter agronomi galur cabai serta untuk mendapatkan galur yang memiliki daya hasil tinggi melalui metode indeks seleksi. Penelitian dilaksanakan di Kebun Percobaan IPB Leuwikopo, berlangsung dari bulan Juli sampai bulan Desember 2010. Percobaan disusun dalam Rancangan Acak Kelompok, faktor tunggal terdiri atas 15 galur cabai dengan 3 ulangan. Analisis data menggunakan uji F, uji lanjut Duncan’s New Multiple Range Test (5%), pendugaan parameter genetik dan indeks seleksi. Hasil penelitian menunjukkan semua peubah yang diamati memiliki nilai koefisien keragaman dengan kriteria yang luas dan memiliki nilai heritabilitas dalam arti luas kriteria tinggi. Galur cabai yang terseleksi adalah IPB009019, IPB002046, IPB002005, IPB002001 dan IPB009002. Terdapat 3 galur hasil persilangan cabai lokal dan introduksi terpilih yang diduga memiliki hubungan kekerabatan jauh serta berpotensi berdaya hasil tinggi.
Co-Authors , Deviona, , . Rustam . Widodo Ketty Suketi Khaerin Nida Muhamad Syukur Muhammad Ridha Alfarabi Istiqlal Shalati Febjislami Sriani Sujiprihati Vitria Puspitasari Rahadi