RAHMI YUNIANTI
Department of Agronomy and Horticulture, Faculty of Agriculture, Bogor Agricultural University Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia

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KARAKTERISASI MORFOLOGI BUNGA, BUAH, DAN KUALITAS BUAH TIGA GENOTIPE PEPAYA HIBRIDA Febjislami, Shalati; Suketi, Ketty; Yunianti, Rahmi
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.
KRITERIA SELEKSI UNTUK PERAKITAN VARIETAS CABAI TAHAN PHYTOPHTHORA CAPSICI LEONIAN Yunianti, Rahmi; Sastrosumarjo, Sarsidi; Sujiprihati, Sriani; Surahman, Memen; Hidayat, Sri Hendrastuti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 2 (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 (194.721 KB) | DOI: 10.24831/jai.v38i2.1796

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<!-- /* Font Definitions */ @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin-top:0cm; margin-right:0cm; margin-bottom:10.0pt; margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman"; mso-ansi-language:IN; mso-no-proof:yes;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> Selection criteria for developing Phytophthora blight-resistant varieties of pepper had been done in both laboratory and ?  eld conditions. Resistance screening were conducted on 28-days-old pepper plants grown in 72-cell ?  ats by inoculating 5 mL of inoculum (contain 105 zoospore mL-1) to the base of each plant. Phytophthora capsici isolate used in this experiment was TG01, which then identi?  ed as race-3. The evaluation of pepper genotypes characteristics were conducted in ?  eld.  Eight characters demonstrated a wide genetic variability; those characters were resistance to Phytophthora blight, infection period, dicotomous height, canopy width, fruit weight, fruit length, fruit diameter and production. These characters along with fruit wall thickness, chlorophyll-a, chlorophyll-b, total chlorophyll had high heritability values. Using path analysis infection period, dicotomous height and fruit diameter are recommended to be simultaneously used as selection criteria for developing Phytophthora blight resistant pepper varieties. Keywords : capsicum, Phytophthora capsici, selection criteria, path analysis
EVALUASI DAYA HASIL CABAI HIBRIDA DAN DAYA ADAPTASINYA DI EMPAT LOKASI DALAM DUA TAHUN Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi; Kusumah, Darmawan Asta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 1 (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 (167.75 KB) | DOI: 10.24831/jai.v38i1.1679

Abstract

The aim of the experiment was to study the performance of yield components of  eight pepper hybrids and their adaptation at four locations in two years (2008 and 2009). The experimental design used was Randomized Complete Block Design (RCBD), three replications as a block was nested in the location. Plant materials were eight hybrids (IPB CH1, IPB CH2, IPB CH3, IPB CH25, and four commercial hybrids were Adipati, Biola, Gada, and Hot Beauty). The IPB CH3 hybrid produced higher fruit width, fruit length, fruit weight, fruit flesh density and yield per plant compared to commercial hybrids. Days to flowering and days to harvesting of IPB CH3 was earlier than that of Hot Beauty. The performance of yield characters in Boyolali, Rembang and Subang was better than that in Bogor. The IPB CH3 hybrid was specifically adapted to Subang and Rembang, while IPB CH1, IPB CH2, IPB CH25 were suitable for Boyolali.   Keywords: fruit, yield components, genotype x location interaction, Capsicum annuum L.
KETAHANAN 25 GENOTIPE TOMAT (SOLANUM LYCOPERSICUM MILL.) TERHADAP PECAH BUAH DAN KORELASINYA DENGAN KARAKTER-KARAKTER LAIN Wahyuni, Sri; Yunianti, Rahmi; Syukur, Muhamad; Witono, Joko Ridho; Aisyah, Syarifah Iis
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 42 No. 3 (2014): 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 (418.274 KB) | DOI: 10.24831/jai.v42i3.9166

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ABSTRACTFruit cracking is one of the major constraints in tomato production in lowland areas. This reduces fruit quality and quantity both as freshmarket and processed fruits. The objective of this study was to determine the resistance of 25 tomato genotypes to fruit cracking, correlation to others characters and their genetic similarity. The experiment was conducted from April until August 2012 at Leuwikopo Field Station, Bogor Agricultural University. A randomized complete block design was used with three replications. Fruit crack index was used to evaluate tomato fruit crack resistance. Correlation and impacts of variables were analyzed by path analysis. The genetic similarity was analyzed by clustering analysis. Result of resistance evaluation showed that fruit crack index of 25 tomato genotypes ranged from 0.00 to 20.58. Fruit crack index was directly related to percentage of  fruit crack weight per plant, percentage of number of fruit crack per plant and total soluble solids. Cluster analysis showed that the genotypes could be clustered into four groups.Keywords: clustering analysis, genetic diversity, path analysis
PENDUGAAN KOMPONEN RAGAM, HERITABILITAS DAN KORELASI UNTUK MENENTUKAN KRITERIA SELEKSI CABAI (CAPSICUM ANNUUM L.) POPULASI F5 Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi; Nida, Khaerin
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
NON PARAMECTRIC STABILITY ANALYSIS FOR YIELD OF HYBRID CHILI PEPPER (CAPSICUM ANNUUM L.) ACROSS SIX DIFFERENT ENVIRONMENTS Syukur, Muhamad; Sujiprihati, Sriani; Yunianti, Rahmi; Kusumah, Darmawan Asta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 42 No. 1 (2014): 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 (433.833 KB) | DOI: 10.24831/jai.v42i1.8146

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ABSTRACTThe objectives of this study were to evaluate several chili pepper hybrids whith high yielding character and stable at six environments based on some non-parametric stability analyses, and to study the correlation among the stability of non-parametric methods. The hybrid of chili pepper (7 candidates varieties and 5 commercial hybrid cultivars) were grown in a randomized complete block design with 3 replications in 6 different environments. Ten nonparametric stability methods were used to identify the stable genotypes.  According to the SI(3), RS, NPi(1), NPi(2), NPi(3) and NPi(4) stability parameters, Imperial was the most stable hybrid. According to the SI(1), SI(2) and TOP  stability parameters and yield, IPB CH3 was the most stable hybrid.  In this study, the high TOP values were associated with the yield. Nonetheless, the results of the other non parametric (SI(6), NPi(3) and NPi(4)) were negatively correlated to the yield. The results also revealed that based on the non parametric stability test, the results could be classified into 2 groups, according to the agronomic and biological stabilities. Keywords: chili pepper, environment, non-parametric stability, yield
SELEKSI GALUR HASIL PERSILANGAN CABAI LOKAL DAN INTRODUKSI Istiqlal, Muhammad Ridha Alfarabi; Syukur, Muhamad; Yunianti, Rahmi; 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

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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.
PEMANFAATAN SUMBER DAYA GENETIK LOKAL DALAM PERAKITAN VARIETAS UNGGUL CABAI (CAPSICUM ANNUUM) TAHAN TERHADAP PENYAKIT ANTRAKNOSA YANG DISEBABKAN OLEH COLLETOTRICHUM SP Syukur, Muhamad; Yunianti, Rahmi; Rustam, .; Widodo, .
Jurnal Ilmu Pertanian Indonesia Vol. 18 No. 2 (2013): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.249 KB)

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.
ONE METHOD TO OBTAIN GENETIC INFORMATION IS THE DIALLEL CROSS ANALYSIS. THE OBJECTIVE OF THIS STUDY WAS TO EAVLUATE THE GENETIC PARAMETERS OF SIX INBRED PEPPER (CAPSICUM ANNUUM L.) USING FULL DIALLEL CROSSES. THE EXPERIMENT WAS CONDUCTED AT IPB EXPERIMENT FIELD, CIKABAYAN, DARMAGA. THE DESIGN WAS RANDOMIZED COMPLETE BLOCK DESIGN (RCBD) USING THREE REPLICATIONS AS BLOCKS. DATA FROM GENERATION F1 AND PARENTS WERE ANALYZED USING THE HAYMAN METHOD. RESULTS INDICATED THAT NO EPISTATIC EFFECTS WERE SI SYUKUR, MUHAMAD; SUJIPRIHATI, SRIANI; YUNIANTI, RAHMI; UNDANG, .
HAYATI Journal of Biosciences Vol. 17 No. 4 (2010): December 2010
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.17.4.183

Abstract

One method to obtain genetic information is the diallel cross analysis. The objective of this study was to eavluate the genetic parameters of six inbred pepper (Capsicum annuum L.) using full diallel crosses. The experiment was conducted at IPB Experiment Field, Cikabayan, Darmaga. The design was randomized complete block design (RCBD) using three replications as blocks. Data from generation F1 and parents were analyzed using the Hayman Method. Results indicated that no epistatic effects were significant for all the traits assessed. Additive genetic effects were larger than the dominant effects for yield per plant, fruit length, and  diameter fruit traits. Dominant genetic effects were larger than the additive effects for fruit weight traits. Narrow-sense and broad-sense heritability were high for all the traits assessed. The character of the yield per plant, fruit weight and fruit diameter shows that there were more dominant genes in the parents. There were more recessive genes in parents for the fruit length character. IPB C7 parent was the most recessive genes containing control characters in the yield per plant. In the new improved varieties of high yielding, IPB C7 could be crossed with IPB C9. Employing individual or mass selection breeding should be successful in developing high-productivity lines in this population.
PENDUGAAN NILAI HETEROSIS DAN DAYA GABUNG BEBERAPA KOMPONEN HASIL PADA PERSILANGAN DIALEL PENUH ENAM GENOTIPE CABAI (CAPSICUM ANNUUM L.) Sujiprihati, Sriani; Yunianti, Rahmi; Syukur, Muhamad; Undang, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 35 No. 1 (2007): 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 (51.228 KB) | DOI: 10.24831/jai.v35i1.1307

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The objective of this study was to  estimate the  heterosis and heterobeltiosis of thirty chili hybrids, the general combining ability (GCA), and the specific combining ability (SCA) of six chili (Capsicum annuum L.)   inbred lines. The experiment was conducted from October 2005 to March 2006 at IPB Experiment Field, Cikabayan, Darmaga. Randomized Complete Blocked Design was used with three replications.  All characters were significantly different for heterosis, heterobeltiosis, general and specific combining ability. Significant  differences were noted in reciprocal effect for fruit weight, and yield per plant. Hybrid IPB C-2 x IPC C-3 and IPB C-3 x IPB C-1 had positive heterosis and heterobeltiosis values for all variables observed. IPB C-2 showed the highest GCA for yield per plant and fruit length, IPB C-3 and IPB C-7 showed high GCA for yield per plant, fruit length, fruit width, and fruit weight. Crosses having high SCA for all variables observed were IPB C-1 x IPB C-3 and IPB C-2 x IPB C-3. Cross combination of IPB C-2 x IPB C-3 was the best hybrid.   Key words: chili, heterosis, heterobeltiosis, combining ability, full diallel