Article Per Year (5 Year)
p-Index From 2021 - 2026
4.336
P-Index
This Author published in this journals
All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia (JHI) Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Zuriat BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Hortikultura Jurnal Penelitian Tanaman Industri Jurnal Tanaman Industri dan Penyegar Pelita Perkebunan AGRIVITA, Journal of Agricultural Science Buletin Kebun Raya Planta Tropika Jurnal Bioteknologi & Biosains Indonesia (JBBI) Jurnal Biologi Tropis ANNALES BOGORIENSES Journal of Tropical Crop Science AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Martabe : Jurnal Pengabdian Kepada Masyarakat NUSANTARA : Jurnal Ilmu Pengetahuan Sosial JOURNAL OF SCIENCE AND SOCIAL RESEARCH CORD Jurnal Penelitian Tanaman Industri (Littri) Buletin Palma TEACHING : Jurnal Inovasi Keguruan dan Ilmu Pendidikan Tut Wuri Handayani : Jurnal Keguruan dan Ilmu Pendidikan Buitenzorg: Journal of Tropical Science Jurnal Natur Indonesia Annales Bogorienses
Dewi Sukma
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor. Jl. Meranti, Kampus IPB Dramaga, Bogor, 16680, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Medicine & Pharmacology Physics Social Sciences Veterinary Other

Published : 81 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 81 Documents
Search

 2   3   4   5   6 
Pengaruh Pemberian GA3 terhadap Perkecambahan Embrio Somatik Kakao Cici Tresniawati; Nur Ajijah; Deden Sukmajaya; Dewi Sukma
Jurnal Tanaman Industri dan Penyegar Vol 8, No 2 (2021): Jurnal Tanaman Industri dan Penyegar
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jtidp.v8n2.2021.p59-66

Abstract

Germination process of somatic embryos is one of critical steps in somatic embryogenesis. The conversion of somatic embryos into plantlets is still low and adding kinetin, ABA, NAA, and GA3 to the germination medium of cacao somatic embryos may increase it. The study aimed to investigate the effect of GA3 on somatic embryo germination at the cotyledonary phase. The study was conducted in the Indonesian Industrial and Beverage Crops Research Institute (IIBCRI) Tissue Culture Laboratory from May to November 2017. The study used a factorial completely randomized design (CRD) with seven replications. The first factor was the cacao genotypes, namely SCA 6 and MCC 02, and the second factor was four concentrations of GA3, namely 0.0; 1.0; 3.0; and 5.0 mg/l. Characters observed were the percentage of shooting cotyledonary embryos, the percentage of rooting cotyledonary embryos, the percentage of shooting and rooting cotyledonary embryos, percentage of browning cotyledonary embryos, root length, shoot length, and hypocotyl length at one and two months old. The results showed no interaction between genotypes and GA3 concentrations on all observed characters. Adding GA3 at 1,0 mg/l concentration tends to increase the percentage of shooting cotyledonary embryos of SCA 6 and rooting cotyledonary embryos of MCC 02. SCA 6 clone has a higher percentage of shooting cotyledone, shooting and rooting cotyledone, and browning cotyledone compared to those of MCC 02.
Potensi Hasil Plasma Nutfah Kelapa Kopyor Asal Kalianda, Pati, Sumenep dan Jember Ismail Maskromo; Hengky Novarianto; Dewi Sukma; , Sudarsono
Zuriat Vol 23, No 2 (2012)
Publisher : Breeding Science Society of Indonesia (BSSI) / PERIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/zuriat.v23i2.6878

Abstract

 Kelapa kopyor diketahui ada di berbagai sentra tanaman kelapa di Pulau Jawa dan Sumatera. Penelitian dilakukan untuk mengevaluasi keberadaan kelapa kopyor, memetakan provenan dan mengevaluasi produksi buah kelapa kopyor di Kalianda, Pati, Sumenep dan Jember melalui kegiatan survei di lapangan. Survei dilakukan pada bulan Juni sampai  Oktober 2011. Lokasi pengamatan ditentukan berdasarkan jumlah tegakan kelapa kopyor  di lokasi, yaitu minimal 10 pohon kopyor per lokasi. Posisi pohon kopyor di lapangandipetakan menggunakan GPS. Potensi produksi ditentukan dengan menghitung jumlah tandan, jumlah buah total dan jumlah buah kopyor per tandan. Kualitas endosperm dievaluasi dengan mengamati satu contoh buah kopyor per pohon. Hasil pengamatan menunjukkan kelapa kopyor di Kalianda dan Sumenep merupakan tipe kelapa Dalam Kopyor, sedangkan yang di Pati dan Jember dijumpai tipe kelapa Dalam, Genjah dan Hibrida Kopyor. Pertanaman kelapa kopyor di Kalianda, Jember dan Sumenep ada dalam bentuk kebun dengan luas 0.5 - 3 ha dan tersebar diantara tegakan kelapa normal. Sebaliknya, pertanaman kelapa di Pati umumnya ditanam di pekarangan. Produksi buah kopyor per tandan yang lebih tinggi diamati pada tegakan yang sama-sama kelapa kopyor. Sebaliknya, tegakan kelapa kopyor yang dikelilingi kelapa normal, produksi buah kopyornya lebih rendah. Untuk kelapa Dalam Kopyor, produksi buah kelapa kopyornya bervariasi antara 1–4 buah per tandan. Sabaliknya, untuk kelapa Genjah Kopyor antara 2–10 butir per tandan.  Kualitas endosperma kelapa kopyor di masing-masing lokasi bervariasi dari skor 1 sampai skor 9.
KERAGAMAN FENOTIPE DAN GENETIK TIGA VARIETAS KELAPA GENJAH KOPYOR ASAL PATI JAWA TENGAH ISMAIL MASKROMO; ELSJE T. TENDA; MEITY A. TULALO; HENGKY NOVARIANTO; DEWI SUKMA; SUKENDAH SUKENDAH; SUDARSONO SUDARSONO
Jurnal Penelitian Tanaman Industri Vol 21, No 1 (2015): Maret 2015
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v21n1.2015.1-8

Abstract

ABSTRAKKelapa Genjah kopyor asal Pati, Jawa Tengah merupakankekayaaan hayati asli Indonesia dengan nilai ekonomi tinggi. Informasikeragaman genetik kelapa kopyor masih terbatas. Data keragamanmorfologi dan genetik diperlukan dalam program pemuliaan kelapakopyor. Penelitian ini mempelajari keragaman tiga varietas kelapa genjahkopyor asal Pati yang telah dilepas berdasarkan karakter morfologi,kuantitas endosperma, dan keragaman alel marka SSR. Penelitiandilakukan di Pati dan di Laboratorium Plant Molecular Biology,Departemen Agronomi dan Hortikultura, IPB. Evaluasi dilakukan terhadaptiga populasi kelapa Genjah kopyor (hijau, coklat, dan kuning) dengan 30tanaman sampel untuk setiap populasi. Rataan data morfologi digunakanuntuk menyusun dendogram. Kuantitas endosperma diamati pada satubuah kelapa kopyor per tanaman yang dievaluasi. Karakteristikendosperma dikelompokkan sesuai kategori yang telah ditetapkan. Untuksetiap populasi, analisis marka dengan lima pasang primer SSR dilakukanpada 10 tanaman sampel. Data yang didapat digunakan untuk menentukankeragaman genetik kelapa Genjah kopyor asal Pati. Hasil pengamatanmenunjukkan keragaman morfologis dan alel SSR antar tanaman dalamvarietasnya (keragaman intra-varietas) rendah. Sebaliknya, keragamanmorfologis dan alel SSR antar varietasnya tinggi. Kuantitas endospermakelapa Genjah kopyor asal Pati bervariasi antara skor 1–6. Keragamangenetik yang rendah dalam varietas dan tinggi antar ketiga varietas (coklat,hijau, dan kuning) memperkuat pelepasan ketiganya sebagai varietas lokal.Selain itu, keragaman genetik antar tanaman dalam varietas yang rendahmendukung penggunaan ketiga varietas lokal sebagai tetua dalam programperakitan varietas kelapa kopyor unggul baru. Tetua yang dipilih dapatdiseleksi intra-varietas berdasarkan persentase buah kopyor per tandandan skor kuantitas endosperma yang tinggi.Kata kunci: Keragaman morfologis, keragaman intra dan antar varietas,kuantitas endospermaABSTRACTKopyor dwarf coconuts are mutants from Pati, Central Java havinghigh economic values. However, morphological and genetic diversities ofthis coconut were still limited. Morphological and genetic diversity dataare needed for breeding program. The research objectives were to evaluateintra and inter-specific diversity based on morphology, endospermquantity, and SSR alleles. Field evaluations were conducted in Pati whilelaboratory activities were at Plant Molecular Biology Laboratory,Department of Agronomy and Horticulture, IPB. Three populations ofkopyor dwarf varieties (brown, green, and yellow) were evaluated. Thirtytrees were sampled for each population. The average of morphologicaldata were used to construct cluster analysis. Endosperm quantity wasscored (0 – 9) based on a single nut sample. Ten palms were analyzedusing five SSR loci for each population and used to determine geneticdiversity of populations. Results of observations indicated intra-varietymorphological and SSR allele variations among kopyor dwarf was low.However, inter-variety variations were high. The endosperm quantityscores among kopyor dwarf coconut ranged from 1–6. The low intra-variety and high inter-variety variations among the three kopyor dwarfcoconut supported their release as different local varieties. Moreover, thelow intra-variety phenotypic and genotypic diversities among kopyorbrown, green, and yellow dwarf coconut support their use as parents fornew and superior kopyor coconut variety development in the future. Forsuch purpose, however, it is necessary to conduct intra-variety selection toidentify desirable parents based on high kopyor fruit percentage per bunchand for high kopyor endosperm quantity.Key words: Morphological diversity, intra and inter variety diversities,quantity, endosperm
KERAGAAN TANAMAN KAKAO ASAL EMBRIO SOMATIK DI LAPANGAN NUR AJIJAH; ENNY RANDRIANI; RUBIYO RUBIYO; DEWI SUKMA; SUDARSONO SUDARSONO
Jurnal Penelitian Tanaman Industri Vol 21, No 2 (2015): Juni 2015
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (389.687 KB) | DOI: 10.21082/jlittri.v21n2.2015.57-68

Abstract

ABSTRAKSekitar 75 juta bibit kakao asal embrio somatik (ES) telah ditanam di lapangan.  Evaluasi keragaan tanaman tersebut perlu terus dilakukan. Penelitian yang bertujuan untuk mengevaluasi keragaan tanaman kakao asal ES di lapangan telah dilaksanakan di delapan lokasi di Kabupaten Soppeng, Sulawesi Selatan dan kabupaten Mamuju (Sulawesi Barat) pada bulan Juni 2012 sampai  Desember 2013. Pengamatan dilakukan terhadap tanaman umur 1,5-4 tahun meliputi tinggi jorget, lingkar batang, jumlah cabang primer, persentase tanaman berbunga, persentase tanaman berbuah, jumlah buah per pohon, jumlah biji per buah, bobot kering biji serta kejadian serangan hama dan penyakit. Tanaman kakao asal ES memiliki arsitektur   seperti   tanaman   yang   berasal   dari   biji,   yaitu memiliki pertumbuhan  dimorfik  dan  membentuk  jorget.  Rataan  tinggi  jorget bervariasi antar lokasi, sebagian besar berkisar 100 -150 cm. Di lapangan ditemukan tanaman asal ES dengan tinggi jorget > 2 m. Perlu dievaluasi lebih lanjut apakah tinggi jorget > 2 m merupakan bentuk penyimpangan atau hanya pengaruh faktor lingkungan. Pada saat dilakukan pengamatan, tanaman kakao asal ES yang dievaluasi sudah berbunga dan berbuah dengan persentase berbunga 34-100%, berbuah 16-100%, dan dengan hasil buah per pohon 6-37 buah. Bobot buah yang dipanen berkisar 277-418 g dengan rataan jumlah biji per buah 43 biji dan bobot kering per biji 0.5 -1.4 g. Kejadian serangan penggerek buah di 3 lokasi pengamatan mencapai 82, 34.8 dan 49.6%, sedangkan busuk buah 2, 4.3 dan 18%. Studi lebih lanjut  diperlukan  untuk  memastikan  bahwa  tanaman  kakao  asal  ES mempunyai karakteristik tanaman dan hasil yang tidak berbeda dengan tanaman kakao  asal bibit tradisional yang telah biasa digunakan petani.Kata kunci:  Theobroma   cacao   L.,   bibit   ES,   perbanyakan   masal, pertumbuhan dan komponen hasil, variasi somaklonal Field Performance of Cacao Somatic Embryos Derived PlantsABSTRACTApproximately 75 millions of cacao seedlings propagated through somatic embryogenesis (SE) have been planted in the field. Evaluation of the performance of those SE derived plants needs to be continued. The research aimed to evaluate the performance of the cacao SE derived plants in the field have been implemented in 8 locations in Soppeng district, South Sulawesi and the Mamuju district, West Sulawesi in June 2012 and December 2013.   Collected   data   include:   jorquette   height,   trunk circumference,  jorquette branch  numbers,  flowering  and  fruiting tree percentages, fruit numbers per tree, pod weight, bean number per pod, bean dry weight and the disease and pest infection rates. Cacao plants derived from SE showed similar plant architectures to those of seed derived ones, such as having dimorphic growth and forming jorquette. The jorquette height of the majority of cacao trees in the evaluated regionsranged from 100-150 cm. A few SE derived cacao trees show jorquette height > 2 m. However, it needs further studies to determine whether they indicate either abnormality or environment effects. The SE derived cacao trees in the studied locations has bear flowers and fruits. The percentages of cacao trees with flowers or fruits at the age of 2.5 years ranged from 34-100% or 16-100%, respectively. The observed pods number per tree was 6-37 pods, the pod weight was 277-418 g, the beans number per pod was 42-43  and the bean dry weight was 0.5 -1.4 g. The incidences of fruit borer infection at the three evaluated locations were 82, 34.8 dan 49.6%, while the incidences of black pod infection were 2, 4.3 dan 18%. To conclude whether the SE derived cacao trees are comparable to those of the traditional cacao planting materials  requires  more comprehensive studies.Keywords:  Theobroma cacao L., SE derived seedling, mass propagation, growth and yield components, somaclonal variation
KERAGAMAN FENOTIPE DAN GENETIK TIGA VARIETAS KELAPA GENJAH KOPYOR ASAL PATI JAWA TENGAH ISMAIL MASKROMO; ELSJE T. TENDA; MEITY A. TULALO; HENGKY NOVARIANTO; DEWI SUKMA; SUKENDAH SUKENDAH; SUDARSONO SUDARSONO
Jurnal Penelitian Tanaman Industri Vol 21, No 1 (2015): Maret 2015
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v21n1.2015.1-8

Abstract

ABSTRAKKelapa Genjah kopyor asal Pati, Jawa Tengah merupakankekayaaan hayati asli Indonesia dengan nilai ekonomi tinggi. Informasikeragaman genetik kelapa kopyor masih terbatas. Data keragamanmorfologi dan genetik diperlukan dalam program pemuliaan kelapakopyor. Penelitian ini mempelajari keragaman tiga varietas kelapa genjahkopyor asal Pati yang telah dilepas berdasarkan karakter morfologi,kuantitas endosperma, dan keragaman alel marka SSR. Penelitiandilakukan di Pati dan di Laboratorium Plant Molecular Biology,Departemen Agronomi dan Hortikultura, IPB. Evaluasi dilakukan terhadaptiga populasi kelapa Genjah kopyor (hijau, coklat, dan kuning) dengan 30tanaman sampel untuk setiap populasi. Rataan data morfologi digunakanuntuk menyusun dendogram. Kuantitas endosperma diamati pada satubuah kelapa kopyor per tanaman yang dievaluasi. Karakteristikendosperma dikelompokkan sesuai kategori yang telah ditetapkan. Untuksetiap populasi, analisis marka dengan lima pasang primer SSR dilakukanpada 10 tanaman sampel. Data yang didapat digunakan untuk menentukankeragaman genetik kelapa Genjah kopyor asal Pati. Hasil pengamatanmenunjukkan keragaman morfologis dan alel SSR antar tanaman dalamvarietasnya (keragaman intra-varietas) rendah. Sebaliknya, keragamanmorfologis dan alel SSR antar varietasnya tinggi. Kuantitas endospermakelapa Genjah kopyor asal Pati bervariasi antara skor 1–6. Keragamangenetik yang rendah dalam varietas dan tinggi antar ketiga varietas (coklat,hijau, dan kuning) memperkuat pelepasan ketiganya sebagai varietas lokal.Selain itu, keragaman genetik antar tanaman dalam varietas yang rendahmendukung penggunaan ketiga varietas lokal sebagai tetua dalam programperakitan varietas kelapa kopyor unggul baru. Tetua yang dipilih dapatdiseleksi intra-varietas berdasarkan persentase buah kopyor per tandandan skor kuantitas endosperma yang tinggi.Kata kunci: Keragaman morfologis, keragaman intra dan antar varietas,kuantitas endospermaABSTRACTKopyor dwarf coconuts are mutants from Pati, Central Java havinghigh economic values. However, morphological and genetic diversities ofthis coconut were still limited. Morphological and genetic diversity dataare needed for breeding program. The research objectives were to evaluateintra and inter-specific diversity based on morphology, endospermquantity, and SSR alleles. Field evaluations were conducted in Pati whilelaboratory activities were at Plant Molecular Biology Laboratory,Department of Agronomy and Horticulture, IPB. Three populations ofkopyor dwarf varieties (brown, green, and yellow) were evaluated. Thirtytrees were sampled for each population. The average of morphologicaldata were used to construct cluster analysis. Endosperm quantity wasscored (0 – 9) based on a single nut sample. Ten palms were analyzedusing five SSR loci for each population and used to determine geneticdiversity of populations. Results of observations indicated intra-varietymorphological and SSR allele variations among kopyor dwarf was low.However, inter-variety variations were high. The endosperm quantityscores among kopyor dwarf coconut ranged from 1–6. The low intra-variety and high inter-variety variations among the three kopyor dwarfcoconut supported their release as different local varieties. Moreover, thelow intra-variety phenotypic and genotypic diversities among kopyorbrown, green, and yellow dwarf coconut support their use as parents fornew and superior kopyor coconut variety development in the future. Forsuch purpose, however, it is necessary to conduct intra-variety selection toidentify desirable parents based on high kopyor fruit percentage per bunchand for high kopyor endosperm quantity.Key words: Morphological diversity, intra and inter variety diversities,quantity, endosperm
Isolation and Characterization of OsNAC6 cDNA from Rice (Oryza sativa L.) cv. Nipponbare, Batutegi, and Rojolele Agus Rachmat; Satya Nugroho; Dini Nurdiani; Maria Swastika; Dewi Sukma; Hajrial Aswidinnoor; Sudarsono Sudarsono
ANNALES BOGORIENSES Vol 18, No 2 (2014): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1372.433 KB) | DOI: 10.14203/ann.bogor.2014.v18.n2.45-55

Abstract

Transcription factors have an important function in regulating gene expression and plant responses to stresses. The ERF, bZIP, WRKY, MYB, and NAC are stress inducible transcription factors. The OsNAC6 is a member of the NAC transcription factor family in rice and its expression is induced by abiotic stresses, wounding and blast disease. Characterization of OsNAC6 gene sequences would give a better undersanding on how OsNAC gene functions biologically. The objectives of this research are to isolate the OsNAC6 cDNA from Nipponbare, Batutegi, and Rojolele cultivars, to characterize their DNA sequences, and to compare their sequences to other NAC genes from other plants available in GenBank DNA databases. Isolated cDNA and sequencing of the fragments resulted in a 912 bp DNA sequences. Translation of the sequences yielded a protein consisted of 303 amino acid residue. Blast analysis of amino acid sequences indicated identity of isolated cDNA from three Indonesian rice cultivars are the OsNAC6 gene. Deduced amino acid residues from amplified cDNAs of Nipponbare, Batutegi, and Rojolele cultivars shared 100% sequence identities to rice OsNAC6 (Acc. # BAA89800), 71-100% sequence identity to a number of OsNAC protein from Oryza sativa and 63-83% sequence identity to NAC protein from other plants.
The Analysis of Morphological Diversity and Polyphenols Content of Celosia cristata in M2 Population Induced by Ethyl Methane Sulphonate: Genetic diversity of mutated C. cristata Waras Nurcholis; Syarifah Iis Aisyah; Yoshua Shandy Yudha; Dewi Sukma
Journal of Tropical Life Science Vol. 13 No. 1 (2023)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.13.01.11

Abstract

Celosia cristata, an edible ornamental plant, is a potential floricultural commodity that needs further improvement to increase its agro-morphological characters and polyphenol content. Induced mutagenesis using ethyl methane sulphonate (EMS) is an effective tool to increase genetic diversity that has been applied in many plant species. This study aimed to assess the morphological diversity, polyphenol content, and antioxidant activities of C. cristata mutagenized by EMS in the M2 generation. A total of 230 M2 plants generated from the M1 generation were evaluated in this study and the polyphenols content and antioxidant activities analysis were conducted on fifteen selected M2 plants. Polyphenols content was analyzed using the Folin-Ciocalteu method and colorimetric method with slight modification, and the antioxidant activities investigated using 2,2’-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay and ferric reducing antioxidant power (FRAP) assay with minor changes. There are six subpopulations with the highest diversity of quantitative characters in the M2 population in quantitative characters, i.e. C2-17-1.0%, C2-1-0.7%, C2-20-2.0%, C2-25-0.7%, C2-1-0.9%, and C2-1-0.7%. Changes in the shape and color of leaves, stems, and flowers of C. cristata were also observed in the M2 population. C2.1, C2.6, and C2.12. 2.1, C2.6, and C2.12 are potential plants derived from EMS mutagenesis with the highest polyphenol content and antioxidant capacity in the M2 population. In conclusion, induced mutation using EMS can enhance the agro-morphological diversity, polyphenols content along with the antioxidant activities of C. cristata, and demonstrate the successful mutation breeding program.
Budidaya, Panen, dan Pascapanen Philodendron giganteum, Philodendron selloum, dan Philodendron xanadu di Jawa Barat Assyifa Fauzia; Dr. Dewi Sukma; Krisantini
Buletin Agrohorti Vol. 10 No. 3 (2022): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v10i3.46455

Abstract

Kegiatan dilaksanakan dari 18 Januari hingga 17 Mei 2021. Penelitian bertujuan mengevaluasi teknik budidaya, panen, dan pascapanen daun potong Philodendron giganteum, Philodendron selloum, dan Philodendon xanadu. Metode yang digunakan adalah metode langsung dan tidak langsung. Pertumbuhan Philodendron mengalami kenaikan setiap minggunya dilihat dari kenaikan rata-rata tinggi tanaman tiap minggu sebesar sebesar 1.4 cm pada Philodendron selloum serta 1,8 cm pada Philodendron giganteum dan Philodendron xanadu. Jumlah daun pada ketiga jenis Philodendron yang diamati bertambah satu helai setiap minggunya. Pemanenan daun potong dilakukan menggunakan sistem manual dan penanganan pascapanen daun potong menggunakan metode penyimpanan basah. Kata kunci: Daun potong, Philodendron, produksi, tanaman hias
Inoculation Methods to Determine Resistance of Phalaenopsis amabilis (L.) Regeneratded from Irradiated Protocorms to Dickeya dadantii Putri, Halida Adistya; Sukma, Dewi; Sudarsono, Sudarsono; Purwito, Agus
PLANTA TROPIKA Vol 12, No 1 (2024)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v12i1.16731

Abstract

Soft-rot disease (SRD) in Phalaenopsis, caused Dickeya dadantii, has resulted in significant losses in the orchid sector in Indonesia. This study aimed to evaluate the inoculation method of Dickeya dadantii and identify the resistance response of individual regenerated plantlets of Phal. amabilis from irradiated protocorm. A detached leaf assay was used to evaluate the inoculation method and resistance response of SRD. Based on the results of this study, Dickeya dadantii bacteria could only infect the leaves through wounding tissue. The density of bacteria that could infect leaf tissue was OD600 = 0.2. All dilution factors tested caused soft rot symptoms in P. amabilis. On the other hand, Vanilla planifolia only showed symptoms at a dilution factor of 10-0. Four accessions of regenerated plantlets from irradiated protocorms were resistant to SRD. They were from irradiation 5 Gy (IP 05 Gy-23, IP 05 Gy-31, and IP 05 Gy-33) and one accession from the control treatment or without irradiation (IP 0 Gy -1). These results showed that 5 Gy irradiation increased plant resistance to SRD in Phalaenopsis. A dose of 5 Gy can potentially produce mutant lines resistant to SRD in Phalaenopsis or other plants, too.
Productivity of Three Dwarf Kopyor Coconut Varieties from Pati, Central Java, Indonesia Ismail Maskromo; Novarianto, Hengky; Sukendah; Sukma, Dewi; Sudarsono, S.
International Coconut Community Journal Vol 29 No 2 (2013): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (539.746 KB) | DOI: 10.37833/cord.v29i2.86

Abstract

Pati Dwarf Kopyor coconut originated from Pati, Central Java is one of the Kopyor coconut populations from Indonesia. Three varieties of Pati Dwarf Kopyor coconut, namely: Kopyor Green Dwarf, Kopyor Brown Dwarf and Kopyor Yellow Dwarf out of six potential varieties have been officially released as local superior varieties by the Minister of Agriculture, Republic of Indonesia at the end of 2010. The objectives of this research were to evaluate the stability of Kopyor fruit production among provenances of Pati Dwarf Kopyor coconuts. Evaluations were conducted especially for the three recently released varieties of Kopyor coconuts. Observations were carried out in 2011 and the collected data were then compared with Kopyor fruit production data collected in 2009 -2010. In three different locations, representatives of 10 Kopyor coconut provenances for each Kopyor variety were observed; therefore, a total of 90 trees were evaluated in this experiment. Observations were conducted for number of total bunches per palm, number of total fruits/per bunch, and the number of harvested Kopyor coconut fruits/per bunch. Three bunches were selected for each of the evaluated provenance. Results of the observation indicated that the observed yield and yield parameters of three Pati Dwarf Kopyor coconut varieties fluctuated by the year of observations. However, in general the observed yield and yield parameters among three varieties were similar. The average number of total bunches observed among three varieties evaluated ranged from 9.6-12.1 bunches per palm; the average number of fruits/per bunch ranged from 5.3-12.4; and the average number of harvested Kopyor fruits/per bunch ranged from 2.0-3.8. The estimated number of total fruits/palm/year among the three varieties ranged from 53.8-128.1 and the percentage of Kopyor fruit production observed among the three varieties evaluated ranged from 24.8-38.9 %. The estimated number of total harvested Kopyor fruits/palm/year ranged from 20.5-39.2, respectively. Rainfall pattern might affect directly or indirectly toward yield and yield components of three Pati Dwarf Kopyor coconut varieties.
Co-Authors , Krisantini , Nazi , Rustikawati ,, Giyanto ABDUL MUNIF Abdullah bin Arif Adimas Krishardianto Agus Purwito Agus Rachmat Agus Rachmat Ahmad Bukhori, Ahmad Ahmad Fathoni Aji, Titistyas Gusti Akbar, Machmul Alam Sani, Fajri Ali Husni Alvianti Yaufa Desita Alwi, Ahmad Andri, Eldrida Antony Demas Apriliani, Elisa Arifah Rahayu Arrin Rosmala Ary Setiawati Assyifa Fauzia Atra Romeida Avisena, Dimas Lutfi Azmi, Tubagus Kiki Kawakibi Budi Marwoto Chaireni Martasari Cici Tresniawati Daulay, Delfina Deden Derajat Matra Deden Sukmajaya Demas, Antony Dewa Ngurah Suprapta DINI NURDIANI Dini Nurdiani Dirga, Kate Tiffany Dodi Saputra, Muhammad Dwi Utami Nur Usmani Efendi, Darda Eka Martha Della Rahayu Elina, Juanita Elis Nina Herliyana Elizabeth Handini ELSJE T. TENDA ELSJE T. TENDA, ELSJE T. ENNY RANDRIANI Erick Raynalta Erick Raynalta, Erick Erna Sulistiana Erna Sulistiana Fadillah, Anggun Fajar Pangestu Fauziah, Ni'mah Fawaz, Ataya Thalita Fuady Dharma Harahap, Andes Giyanto, dan Gustaaf Adolf Wattimena HAJRIAL ASWIDINNOOR Halimatussakdiyah, Halimatussakdiyah Handini, Aline Sisi Hasibuan, Nadia Hengky Novarianto Hengky Novarianto HENGKY NOVARIANTO Hermanto, Catur Hidayatullah, Deden Husein Nst, Ahmad I MADE ARTIKA Ika Roostika Ira Fauziah Noer Irawati Irawati Islami, Muhammad Randy ISMAIL MASKROMO Ismail Maskromo Ismail Maskromo Ismiati, Mely Isnaini Harahap, Fitri Iswari S. Dewi Juang Gema Kartika Kartiman, Roni Kartiman, Roni Khoiruddin Khoiruddin Khoiuruddin, Khoiruddin Krishardianto, Adimas KRISTIANTO NUGROHO, KRISTIANTO Kultsum, Fifit Lestari Koto, Putri Lolliani Lubis, Uchti Nuzul Qhinanti M. Syukur Maria Swastika Maryuandini, Ufi MASKROMO, ISMAIL MASKROMO, ISMAIL Mastur Mastur Megawati, Gina MEITY A. TULALO MEITY A. TULALO, MEITY A. Mia Kosmiatin Mira Humaira Muhamad Rizal Martua Damanik Muhamad Syukur Muhammad Syukur Muhammad Syukur Muthi'ah Khairun Nisa Muthi’ah Khairun Nisa Nabilah, Noorfakhriyah Ahsanti Nasution, Fery Endang Ni'mah Fauziah Noer, Ira Fauziah NOVARIANTO, HENGKY NOVARIANTO, HENGKY Nur Ajijah NUR AJIJAH Nurgravisi, Primanisa Nurul Khumaida OKTA ROSFIANI Pebra Heriansyah Pratama, Syilvia Nosya PUJI LESTARI Pulungan, Darmasyah Pulungan, Nurpadilah Putri, Astrid Aditya Putri, Halida Adistya Putri, Yane Riana Rahmawati, Rika Sri rawati ,, rawati Razaq, Sahid Muhammad Refa Firgiyanto REFLINUR REFLINUR Riski Ananda, Ihwan Rizal, Syamsi Roedhy Poerwanto RUBIYO RUBIYO Rusmiyati, Henny S. Sudarsono Sachio, Sachio Safri Hasibuan, Iskandar Saidah, Marwatu Sandi, Gunawan Sandra A. Aziz Sandra Arifin Aziz Saputra, Galang Rafly Yus Sari, Novila Satya Nugroho Satya Nugroho Sauri Nasution, Sofyan Shandra Amarilis Shandra Amarillis Siberakuno, Roberdi Sihombing, Novi Silviyani Siregar, Sindi Simatupang, Juli Simatupang, Juliana Sintho Wahyuning Ardie Siti Salamah Slamet Susanto Sormin, Darlina Sudarsono Sudarsono Sudarsono Sudarsono SUDARSONO SUDARSONO SUDARSONO SUDARSONO Sudarsono, dan SUDARSONO, nFn SUDARSONO, nFn Sudarsono, Sudarsono Sugianto, Pingkan Sukendah SUKENDAH SUKENDAH SUKENDAH SUKENDAH, SUKENDAH SUKENDAH, nFn SUKENDAH, nFn Sukmana, Bayu Surjono Hadi Sutjahjo Suryo Wiyono Suskandari Kartikaningrum Sutanto, Agus Swastika, Maria Swastika, Maria Syafa, Naila Syarifah Iis Aisyah Syilvia Nosya Pratama Tony Liwang TRI JOKO SANTOSO Tya Wulandari Ucu Sumirat Wahyu Arif Sudarsono Wahyu Arif Sudarsono Waras Nurcholis Willy Bayuardi Suwarno Yafqori Ardigusa Yasmin, Zahra Fadhlia Yoshua Shandy Yudha Yudhi, Joshinjitsu Fatirizqina Yustia Yulianti Zahra Fadhlia Yasmin Zulfa, Aqila