Yudiwanti Wahyu
Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB, Darmaga, Bogor 16680, Indonesia

Published : 13 Documents
Articles

Found 13 Documents
Search

Keragaan Mutan Putatif Purwoceng (Pimpinella pruatjan Molk.) dari Benih Diiradiasi Sinar Gamma pada Tiga Ketinggian Tempat Wahyu, Yudiwanti; Darwati, Ireng; Rosita, ,; Pulungan, Muhammad Yusuf; Roostika, Ika
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 41, No 1 (2013): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (313.307 KB)

Abstract

Pruatjan (Pimpinella pruatjan Molk.) is Indonesian endangered medicinal plant which grows endemically at mountainousarea. To broaden its planting area, an effort to develop low-altitude tolerant genotype of pruatjan had been conductedsince May 2007. Pruatjan seeds harvested from Gunung Putri experimental station (1,545 m asl) were treated with gammairradiation (0-5 krad) and germinated at Gunung Putri. Young seedlings were transplanted into small polybag (Ø 10 cm), anda month later they were moved into 10-kg medium of pot or polybag. Two months later, some of the young plants were moved to Cibadak experimental station (950 m asl) and Cicurug experimental station (550 m asl). All plants were maintained until flowered and produce seeds. The result shows that seeds from all of irradiation level treatments germinated and grew wellalthough the amount of seedlings decreased by the higher level of irradiation treatment. No phenotypic difference of plantsfrom irradiated seed compared with those from non irradiated ones (0 krad). Plants at Cibadak and Cicurug grew faster thanthose at Gunung Putri, and also flowered faster. On April 2008, seeds from 0, 1, 3 and 5 krad treated plant had germinatedat Cicurug, and those seedlings were the candidate genotypes for low-altitude tolerant of pruatjan.Keywords: induced mutation, low altitude tolerant, pruatjan, variability
Indikator dan Kriteria Seleksi pada Generasi Awal untuk Perbaikan Hasil Biji Kacang Hijau Berumur Genjah Jambormias, Edizon; Sutjahjo, Surjono Hadi; Mattjik, Ahmad Ansori; Wahyu, Yudiwanti; Wirnas, Desta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 41, No 3 (2013): JURNAL AGRONOMI INDONESIA
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (2063.11 KB)

Abstract

ABSTRAKPerbaikan hasil kacang hijau dapat dilakukan melalui seleksi langsung maupun seleksi tak langsung berdasarkankriteria seleksi dari satu atau beberapa sifat kuantitatif sebagai indikator seleksi. Penelitian ini bertujuan untuk memilihindikator seleksi bagi hasil biji dan menentukan kriteria seleksi bagi indikator seleksi tersebut pada populasi generasi awalkacang hijau berumur genjah. Penelitian menggunakan rancangan acak tak lengkap berblok bersekat-tersarang 1-tahap.Analisis lintas dan regresi aditif serta genotipik masing-masing digunakan untuk memilih dan menentukan indikator seleksi dan kriteria seleksi. Hasil analisis pengaruh langsung memperlihatkan jumlah biji bernas dan umur berbunga merupakanindikator seleksi bagi hasil biji dengan kriteria seleksi 200 biji pada kisaran umur berbunga 40-46 hari, untuk memperolehhasil > 12 g tanaman. Sebaliknya, hasil analisis pengaruh tak langsung memperlihatkan tinggi tanaman, jumlah cabangdan lama hari panen dapat pula dimasukkan sebagai indikator seleksi. Kriteria seleksi bagi masing-masing indikator seleksiini adalah dua cabang dengan lama hari panen 16-20 hari dan tinggi tanaman sekitar 85 cm untuk menghasilkan 200 biji.Bila dipilih tanaman yang lebih pendek, kriteria seleksi tinggi tanaman 75-80 cm dapat digunakan, namun lama hari panenmenjadi 22-26 hari.-1Kata kunci: analisis regresi, analisis lintas, BLUP, seleksi generasi awal
Analisis Dialel untuk Pendugaan Parameter Genetik Komponen Hasil pada Cabai (Capsicum annuum L.) menggunakan Metode Hayman Istiqlal, Muhammadl Ridha Alfarabi; Syukur, Muhamad; Wahyu, Yudiwanti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 42, No 2 (2014): Jurnal agronomi indonesia
Publisher : Bogor Agricultural University

Show Abstract | Original Source | Check in Google Scholar | Full PDF (395.392 KB)

Abstract

ABSTRACTThe diallel cross analysis method was developed to obtain genetic information involved in a population formed closely to Hardy-Wienberg equilibrium. The objective of this research was to study the genetic parameters on yield component of crossing on big and curly species of red pepper using Hayman approach for dialel cross-analysis method. This approach used 6 parental genotypes and 30 full-diallel cross combinations F1 hybrids. Appearance of the character was controlled by one up to two groups of positive additive genes. Each character observed has a partial dominance. Dominant genes were found much more in the parental characters of weight per plant (IPBC120), flesh thickness of fruit (IPBC2), fruit diameter (IPBC159), and fruit length (IPBC2). The broad sense heritability values on each character was high. Whereas, narrow sense heritability value for some characters were also high, except for character of weight per plant which were moderate.Keywords: additive effects, dominant effects, gene, heritability
Identifikasi Penanda SSR yang Berasosiasi dengan Bobot Tandan Buah Kelapa Sawit (Elaeis guineensis Jacq.) Yono, Dwi; Wahyu, Yudiwanti; ,, Sobir; Toruan-Mathius, dan Nurita
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 45, No 1 (2017): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar | Full PDF (374.647 KB)

Abstract

Oil palm is a perennial oil crop that contribute the most important source of vegetable oil in the world. Oil palm breeding cycle take a long period, therefore molecular marker-assisted selection (MAS) is required to shorten the selection time. This MAS require the associated marker to desired trait, particularly for yield and the component that as a complex trait and depend on genetic background. The aim of this study was to obtain SSR marker that associated with average of bunch weight (ABW). Plant material was used in this study is Tenera population derived from Deli Dura x AVROS Pisifera. Seven SSR markers from public database were associated to ABW trait. Molecular data analysed for SSR markers profile which consisted of allelic diversity, heterozygosity level, and polymorphism information content (PIC). Association between SSR markers to ABW traits was performed with single marker analysis using one way analysis of variance. The results showed that SSR markers were able to amplify DNA with two to three number of alleles with the average of 2.3 alleles per locus. ABW trait for this population was significantly associated with mEgCIR3428 marker. This marker may be used in the selection of Deli Dura and AVROS Pisifera palm on the next selection cycle.Keywords: Average of bunch weight, AVROS Pisifera, Deli Dura, single marker analysis
Parameter Genetik dan Deteksi Segregan Transgresif pada Populasi Kacang Tanah (Arachis hypogaea L.) Generasi F3 Nurhidayah, Siti; Wahyu, Yudiwanti; Bayuardi Suwarno, dan Willy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 45, No 2 (2017): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy

Show Abstract | Original Source | Check in Google Scholar | Full PDF (329.019 KB)

Abstract

ABSTRACTSelection of transgressive segregants is considered as one effective way of obtaining peanut genotypes with high yield on early segregation. The objective of the study was to estimate genetic parameters and to identify transgressive segregants of peanut family in F3 generation. The experiment was conducted at Leuwikopo, Dramaga, Bogor on August-Desember 2014. The genetic materials evaluated were 218 family F3 generation from 5 biparental population (Jerapah/GWS79A1, GWS79A1/Zebra, GWS79A1/Jerapah, Zebra/GWS79A1 and Zebra/GWS18) and 4 commercial varieties as checks (Gajah, Jerapah, Sima, and Zebra). The experiment was conducted in an augmented randomized complete block design with 4 replications for the checks. The results showed that quantitative characters had continuous distribution and they were controlled by many genes with additive, dominance, complementary epistasis, or additive epistasis gene action. Total number of pod and number of pod had high heritability and moderate genetic coefficient of variation. Selection with 10% intensity showed that 22 families had large total number of pods while six families had larger total number of pods than both parents. Family U2-39 estimated was identified as a putative transgressive segregant with high total number of pod and had smaller variance within family than Sima variety. Keywords: additive,gene action, heritability, GCV
Evaluation of Leaf Spot Resistance and Agronomic Characteristics of Groundnut Advanced Breeding Lines Wahyu, Yudiwanti; Achmad, Achmad; Junaedi, Wahyu
Journal of Tropical Crop Science Vol 3 No 3 (2016): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Original Source | Check in Google Scholar | Full PDF (149.984 KB)

Abstract

Leaf spot is a major groundnut disease in Indonesia and worldwidewhich has the potential to cause a yield loss of up to 60%. The use of leaf spot resistant cultivars is an easy, economical, and environmentally friendly way in groundnut cultivation to maintain high yields. The objective of the research was to evaluate the yields of 16 groundnut lines which had been developed to be leaf spot resistant and high yielding. The research was conducted in 2010 – 2011 at the Bogor Agricultural University (IPB) experimental station in Cikarawang, Indonesia. A randomized complete block design with three replications was used in the experiment. The groundnut lines evaluated were crosses between “Gajah”, a cultivar which is known to be susceptible to leaf spot, and the resistant line GPNC- WS4. Four Indonesian cultivars “Gajah”, “Jerapah”, “Zebra” and “Sima” were used as control. The results showed that selected lines demonstrated better resistance to leaf spot compared to “Gajah”. Their agronomic characteristics, such as pod number, filled pod number, pod weight, and kernel weight, were not significantly different from the control cultivars. The results of this study have provided information on groundnut leaf spot resistant lines for further evaluation.
Determination of the Optimum Rate of N Fertilizers with Addition of Goat Manure for Production of Cowpea (Vigna unguiculata [L.] Walp) Liana, Devi; Purnamawati, Heni; Melati, Maya; Wahyu, Yudiwanti
Journal of Tropical Crop Science Vol 6 No 02 (2019): Journal of Tropical Crop Science
Publisher : Journal of Tropical Crop Science

Show Abstract | Original Source | Check in Google Scholar | Full PDF (806.186 KB)

Abstract

Cowpea (Vigna unguiculata L. Walp) is one of the potential substitutes of soybean due to its similar nutritional content. This study aims to determine the optimum rate of N fertilizer for the production of cowpea, and to determine the effects of the interaction between N fertilizer rates and goat manure application on cowpea production. The experiment was organized in a split-plot with a complete randomized block design with three replications. The main plot was goat manure, i.e. 0 and 5 tons.ha-1; the sub-plot was nitrogen fertilizer with five rates (0, 50, 100, 150, and 200% of the recommended rate), i.e. 0, 22.5, 45, 67.5, and 90 kg N.ha-1. Application of N fertilizer reduced the 100-seed weight and slightly reduced cowpea yield and yield components. Application of goat manure increased seed dry weight per plant, number of pods per plant, dry pod weight per plant, seed dry weight per m2, productivity, 100-seed weight, and the harvest index. There was no significant interaction between goat manure and different rates of nitrogen in affecting cowpea growth.
Genetic Variation and Agronomic Characters of Bambara Groundnut (Vigna subterranea L. Verdc.) Lines Results of Pure Line Selection from Sukabumi Lanras Yuliawati, Yuliawati; Wahyu, Yudiwanti; Surahman, Memen; Rahayu, Arifah
JURNAL AGRONIDA Vol 4, No 2 (2018)
Publisher : Universitas Djuanda Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (325.892 KB)

Abstract

Bambara groundnut is a legume plant that has several advantages, including droughttolerance, has ability to grow on infertile land and high nutrient content. The production ofbambara groundnut is still low, so it is necessary to obtain high yielding bambara groundnut line.The experiment was conducted to evaluate the genetical variation and agronomic characters of 30bambara groundnut lines. This experiment was carried out in experimental field of SEAMEOBIOTROP Tajur Bogor (± 280 m above sea level), on Februari-June 2018. Plant materials used inthis research were 30 bambara groundnut lines derived from pure line selection of Sukabumilandrace and unselected Sukabumi landrace uses as control. The experiment was arranged in arandomized complete block design with three replications. Results showed that there werevariations among several agronomic characters of bambara groundnut lines. Several lines showedsuperior characters. R59.30, A90.8, A41.4, A56.10, A43.5, A103.5, A41.4, A55.8, R59.31 andA28.10 lines were lines with the higest dry pods weight compared to the other lines and controlline. These lines had potential as new superior varieties of bambara groundnut.Keywords: landrace, new superior variety, pure line selection
Karakter Agronomi dan Kadar Sinensetin Beberapa Aksesi Tanaman Kumis Kucing (Orthosiphon stamineus) Febjislami, Shalati; Melati, Maya; Kurniawati, Ani; Wahyu, Yudiwanti
Jurnal Hortikultura Indonesia Vol 9, No 3 (2018): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Original Source | Check in Google Scholar | Full PDF (518.588 KB)

Abstract

ABSTRACTJava’s tea plants have efficacy to treat diabetes. Sinensetin is a chemical compound in Java’s tea that acts as diabetes medicine. The experiment objective was to study diversity of agronomy characters and sinensetin content of ex situ collections of Java’s tea from West, Central, and EastJava regions. Java’s tea was harvested when population has flowering about 70% and tested sinensetin content on leaf part. The experiment was conducted with a completely randomized block design with 18 accessions and one control (purple flower accession). The result of study showed thatthere were significant differences in the accumulation of height plant increase while 8 weeks after planting, secondary branches and secondary branches internode number; leaf length, width and area index; average stems and leaf dry weight per 4.41 m2 and sinensetin levels among some accessions. Banyumas 1, Sumbersari and Kraksaan accessions have agronomy and production characters except for sinensetin levels were better than control (Leaf sinensetin levels based on leaf dry weight increased from low to medium but decreased in high category) Based on comparison between accession and leaf dry weight category, purple flower accession has higher sinensetin levels (0.043%) than another accession, but only reaches 43% of Indonesian Herbal Pharmacopoeia minimum standard (There were no significant differences in sinensetin accession production tested either by comparison of accession or accession categories).Keywords: ex situ, flower, Java’s tea, Orthosiphon aristatus, sinensetinABSTRAKTanaman kumis kucing berkhasiat untuk mengobati penyakit diabetes. Sinensetin merupakan senyawa kimia pada kumis kucing yang berperan sebagai obat diabetes. Tujuan penelitian adalah untuk mempelajari keragaman karakter agronomi dan kandungan sinensetin tanaman kumis kucing hasil koleksi ex situ dari daerah Jawa Barat, Jawa Tengah dan Jawa Timur. Tanaman kumis kucing dipanen saat populasi berbunga sekitar 70% dan diuji kandungan sinensetin pada daunnya. Rancangan percobaan yang digunakan adalah rancangan kelompok lengkap teracak dengan perlakuan 18 aksesi dan satu pembanding (koleksi ungu). Hasil penelitian menunjukkan terdapat perbedaan yang signifikan pada akumulasi pertambahan tinggi selama 8 MST, jumlah cabang sekunder dan ruascabang sekunder; panjang, lebar dan indeks luas daun; rata-rata bobot kering batang dan daun per 4.41 m2 serta kadar sinensetin antar aksesi yang diuji. Aksesi Banyumas 1, Sumbersari dan Kraksaan memiliki karakter agronomi dan produksi yang lebih baik daripada kontrol kecuali kadar sinensetinnya. Kadar sinensetin daun berdasarkan kategori bobot kering daun mengalami peningkatan dari kategori rendah ke menengah namun menurun pada kategori tinggi. Berdasarkan perbandingan antar aksesi maupun kategori bobot kering daun, kontrol memiliki kadar sinensetin (0.043%) yang lebih baik, namun hanya mencapai 43% dari standar minimum kandungan kimia simplisia (kadar sinensetin) yang ditetapkan oleh Farmakope Herbal Indonesia. Tidak terdapat perbedaan yang signifikan pada produksi sinensetin aksesi yang diuji baik berdasarkan perbandingan aksesi maupun kategori aksesi.Kata kunci: bunga, ex situ, kumis kucing, Orthosiphon aristatus, sinensetin
Daya Hasil Galur-Galur Kacang Tanah (Arachis hypogaea L.) Tahan Penyakit Bercak Daun di Kecamatan Ciranjang Kabupaten Cianjur Provinsi Jawa Barat Wahyu, Yudiwanti; Budiman, Dede Rosyana
Buletin Agrohorti Vol 1, No 1 (2013): Januari 2013
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Original Source | Check in Google Scholar | Full PDF (286.371 KB)

Abstract

This research was aimed to evaluate the yield of 16 peanut leafspot resistant lines derived from cross between Gajah variety and GPNC-WS 4 line with four check varieties of peanut. The four check varieties of peanut consist of Gajah, Jerapah, Zebra Putih, and Sima. The experiment was carried out at Ciranjang District, Cianjur Regency, West Java, from February to May 2011. This research was arranged in randomized complete block design with three replications. Result showed that GWS 39 D, GWS 110 D, GWS 18 A1, GWS 79 A, and GWS 110 A2 were identified as lines with high yield. GWS 74 D, GWS 39 B, GWS 79 A, GWS 73 D, GWS 18 A1, GWS 134 A1, and GWS 110 A1 were identified as lines with high resistant level to leafspot of peanut. Two of sixteen lines had high yield and high resistant level to leafspot, they were GWS 79 A and GWS 18 A1.Key words : peanut, yield evaluation, leaf spot resistant