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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia MEDIA KONSERVASI Forum Pasca Sarjana Buletin Hama dan Penyakit Tumbuhan REINWARDTIA Floribunda Jurnal Ilmiah Sains Reinwardtia

Alex Hartana

Unknown Affiliation

Author-ID : 440118

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Mathematics Physics

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Taksonomi Mangga Budidaya Indonesia dalam Praktik , Fitmawati; Alex Hartana; Bambang S. Purwoko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

The classification of cultivated plants should meet two approaches namely the botanical (classifying based on essential systematic plant characters) and the practical approach (clustering based on the analysis of commercial properties). This study analyzed taxonomy of mango cultivars grown in Indonesia based on morphology and agronomy characters. It obtained 84 recognizable cultivars.They are grouped into eigth main cultivar-groups (e.g. Berem, Madu, Gedong, Golek, Bapang, Arumanis, Kepodang, and Kebo) and eigthteen cultivar-groups. The 'Lalijiwo' cultivars synonym with 'Thaber', 'Tabar', 'Gurih' whereas 'Arummanis' synonim with 'Gadung'. Meanwhile, the cultivar 'Kates277' which is a member of Golek cultivar main group is homonim with the cultivar 'Kates' in Arummanis cultivars main group. Furthermore, the cultivar Nanas93 (one of Madu main group cultivar) that different with the cultivar 'Nanas71' which is categorized as member of Bapang main cultivar group. Key words: Taxonomy of cultivated plant, Indonesian mango, morphology, agronomy characters

Hubunagn kemampuan pergantian inang dengan plastisitas genetika pada cendawan blas padi (Pyricularia grisea) Sri Listiyowati; Utut Widyastuti; Gayuh Rahayu; Alex Hartana; Muhammad Jusuf
Jurnal Ilmu Pertanian Indonesia Vol. 14 No. 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1504.563 KB)

The Digitaria ciliaris, wild grass grown around rice field, was a host for Pyricularia grisea (Cooke) Sacc., the fungi caused blast disease of rice. This fungi have a specific mechanism to regenerate new genetic variation in its life cycle. The aim of this research is to study the relation between the ability of the fungi to infect different species of host with its genetic plasticity. It was used three SCAR molecular markers Cutl, Pwl 1 and Erg2. P. grisea isolates (Dc4J1) originated from D. ciliaris at Jasinga-Bogor were able to infect rice cultivars Kencana Bali and Cisokan. The original Dc4Jl, from D. ciliaris, and the Dc4Jl that were reisolated from the infected rice cultivars (reisolates-1) had the same ability to infect Kencana Bali and Cisokan. Molecular technique showed that there was a different molecular marker genotype between the original Dc4J1, from D. ciliaris, and the Dc4Jl reisolated from infected rice cultivars. The original Dc4J1 owned Cutl but did not Pwl2 in contrary the reisolates Dc4J1 from rice cultivars (reisolates-1) had Pwl2 but did not Cutl. The Erg2 presented in both the original and the reisolated Dc4Jl. These results indicated that there were a change of genotype of P. grisea at the same time with the change of host species. The Dc4Jl isolates originated from Kencana Bali and Cisokan (reisolates-2) that were infected by reisolate-1, had the same genotype with the reisolates-1.

Plant Species Diversity of Pangi Binangga Nature Reserve, Central Sulawesi Muhammad F. R. M. Saleh; Alex Hartana
Media Konservasi Vol 22 No 3 (2017): Media Konservasi Vol. 22 No. 3 Desember 2017
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Pangi Binangga Nature Reserve is one of eight nature reserves in Central Sulawesi. In 1998, Pangi Binangga was designated as a conservation area, however, the diversty of the plant species not been recognized and reported. Pangi Binangga Nature Reserve is a lowland forest with vegetation and grassland forest, with primary and secondary forest vegetation. The objectives of this research are to provide informations of plant species in the Pangi Binangga Area. Exploration method was conducted throughout the region, and found 518 species. Rubiaceae, Euphorbiaceae, Moraceae, Compositae, Araceae, Urticaceae dominate in Pangi Binangga forest. Four species of them are endemic to Sulawesi, five species belong to endangered plants and 10 species of invasive. Keywords: biodiversity, endemic, invasive, Sulawesi

Ethnobotanical Study of Food Plant in Bentong Community from Barru Regency, South Sulawesi-Indonesia: KAJIAN ETNOBOTANI TUMBUHAN PANGAN MASYARAKAT SUKU BENTONG DI KABUPATEN BARRU SULAWESI SELATAN-INDONESIA Dewi Sartik Amboupe; Alex Hartana; Y Purwanto
Media Konservasi Vol 24 No 3 (2019): Media Konservasi Vol. 24 No. 3 Desember 2019
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

The Bentong people lives in the village of Bulo-Bulo, Barru Regency, South Sulawesi. About 50 years ago, the community still lived a nomadic life, but today the community has settled. Knowledge about the use of plants as food ingredients by the people of the Bentong Tribe has not been recorded. This study aims to record and describe the utilization of food plant species of the Bentong tribe. Data collection through informant interviews, observations, and collection of herbarium specimens to be identified. Data were analyzed descriptively by examining plant species used as food ingredients and quantitative analysis using the index of cultural importance. The Bentong tribe uses 70 plant species as food ingredients including: 1) as a staple food consisting of 4 types namely 'kenrang' fruit (Ficus racemosa) and 'sikapa' tubers (Dioscorea hispida) when they were still nomadic and rice plants (Oryza sativa) and corn (Zea mays) after settling; 2) as a vegetable 34 species; 3) as a fruits 33 species; and 4) as a drink 5 species. ICS analysis results showed that the species that had the highest cultural importance index value were rice (100) followed by lontar (83), banana (78), coconut (48) and sugar palm (44). Keywords: Bentong, Bulo-Bulo Village, ethnobotany, nomadic

The Genetic Estimation of Fruit Component Parameters of Seven Coconut Populations Without a Progeny Test Dwi Asmono; Alex Hartana; Edi Guhardja; Sudirman Yahya
Forum Pasca Sarjana Vol. 16 No. 1 (1993): Forum Pascasarjana
Publisher : Forum Pasca Sarjana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2008.172 KB)

Heritability of fruit characters, such as fruit weight, husk weight, husk thickness, sheal weight, endosperm (water) weight, albumen weight, copra weight, oil content, fruit length and ftuit width. have been estimated on seven coconut populations. The results showed that most of the fruit components of Malayan Red Dwarf (MRD) and Malayan Yellow Dwarf (Mm)had relatively high heritability (>0.80), except fruit weight of MRD (0.74) and albumen weight of MYD (0.78). On the other hand, the heritability of those characters in tall populatidns varied between population. All of fruit characters on Polynesian Tall (PYT) and Seruwai Tall (SAT) had relatively high heritability (>0.80). On West African Tall (WAT), most Of the heritability of the fruit characters were relatively high (>0.80). except husk weight (0.75). endosperm weight (0.79) and oil content (0.41). Heritability of seven characters of Bali Tall (BLT) were relatively high, but those of three characters were relatively low; i.e. husk weight (0.52). fruit width (0.56) and husk thickness (0.71). Three fruit characters of Rmnell Tall (RLT) shown higher heritability. those are husk thickness (0.87), endosperm weight (0.92) and fruit length (0.90).

Selection of Coconut Resistance to the Nutfall Disease (Phytophthorapalmivora Butler) The objective of this research was to select the coconut resistance to nutfall phytophthora disease. Using wounding inoculation method, detachedhits of 11 coconut populations at Pakuwon Coconut Cropping Pattern Research Station were inoculated with Phytophthora palmivora Co5 isolate. Based on the dhease lesion size at seven days after inoculation, Genjah Salak (GSK) coconutpopulation was more resistant than the Semuel D. Runtunuwu; Meity S. Sinaga; Alex Hartana
Buletin Hama dan Penyakit Tumbuhan Vol. 11 No. 1 (1999): Buletin Hama dan Penyakit Tanaman
Publisher : Buletin Hama dan Penyakit Tumbuhan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Selection of Coconut Resistance to the Nutfall Disease (Phytophthorapalmivora Butler) The objective of this research was to select the coconut resistance to nutfall phytophthora disease. Using wounding inoculation method, detachedhits of 11 coconut populations at Pakuwon Coconut Cropping Pattern Research Station were inoculated with Phytophthora palmivora Co5 isolate. Based on the dhease lesion size at seven days after inoculation, Genjah Salak (GSK) coconutpopulation was more resistant than the other coconutpopulations and showed individual resistance variation to the disease. From 238 GSK coconut trees selected, 226 (95%) trees were resistant and 12 (5%) trees were susceptible.

VARIASI MORFOLOGI KABAU (ARCHIDENDRON BUBALINUM) DAN PEMANFAATANNYA DI SUMATRA Dewi Komariah; Alex Hartana
Floribunda Vol. 5 No. 5 (2016)
Publisher : PTTI

Dewi Komariah & Alex Hartana. 2016. Morphologycal Variation and Use of Kabau (Archidendron bubalinum) in Sumatra. Floribunda 5(5): 157–164. — The strong flavour and taste of kabau (Archidendron bubalinum) seeds are somewhat similar to jering (Archidendron jiringa) and petai (Parkia speciosa) seeds, so that they are used to flavour food. Since very little is known about its biology, the result of a study on its utilization and the morphological variability of kabau in Sumatra is presented. Stems, leaves, flower, fruits, and seeds were observed from 28 plants of kabau, collected from Jambi, South Sumatra, and Lampung. Those morphological data were analyze using UPGMA with NTSyspc 2.11a version. The result showed that kabau plants clustered into two groups based on 20 morphological characters.Keywords: kabau, morphology, Sumatra, UPGMA, utilization.Dewi Komariah & Alex Hartana. 2016. Variasi Morfologi Kabau (Archidendron bubalinum) dan Pemanfaatannya di Sumatra. Floribunda 5(5): 157–164. — Rasa dan aroma yang kuat dari biji kabau (Archidendron bubalinum) menyerupai rasa dan aroma biji Jengkol (Archidendron jiringa) dan petai (Parkia speciosa), sehingga ketiganya digunakan sebagai penambah rasa makanan. Informasi biologi tentang kabau masih sangat sedikit, hasil penelitian tentang pemaanfaatan dan variasi morfologi kabau di Sumatra disajikan dalam penelitian ini. Batang, daun, bunga, buah, dan biji diamati dari 28 tumbuhan kabau yang dikoleksi dari Jambi, Sumatra Selatan, dan Lampung. Data morfologi dianalisis menggunakan UPGMA dengan NTSyspcversi 2.11a. Hasil penelitian menunjukkan kabau terpisah menjadi dua kelompok berdasarkan 20 karakter morfologi.Kata kunci: kabau, morfologi, pemanfaatan, Sumatra, UPGMA.

VARIASI MORFOLOGI ANDALIMAN (ZANTHOXYLUM ACANTHOPODIUM) DI SUMATRA UTARA Romaita Newanti Lumban Raja; Alex Hartana
Floribunda Vol. 5 No. 7 (2017)
Publisher : PTTI

Romaita Newanti Lumban Raja & Alex Hartana. 2017. Morphologycal Variation of Andaliman (Zanthoxylum acanthopodium) in North Sumatra. Floribunda 5(7): 258–266. — Andaliman plants (Zantoxylum acanthopodium DC.) found in North Sumatra, Indonesia, and known as seasoning plants or 'merica Batak’ in Batak dishes. This study was conducted to explore the diversity of andaliman plants in North Sumatra. 27 andaliman plants collected and analyzed based on their 24 morphological characters of stems, leaves, flowers, fruits, and seeds using unweighted pair group method with arithmatic average (UPGMA) and clustered based on similarity for qualitative data (SIMQUAL) and coefficient simple matching, using NTSYS pc. 2.02 version. The phenetic analysis showed dendrograme of 27 andaliman plants in North Sumatra were clustered into 4 groups. The main characters differentiate each group are the color of young branches, thorns on leaf midrib, the color of calyx, and the color of fruit. The group I and II in dendrograme refer to local cultivar names ‘Simanuk’ and ‘Sihorbo’, while the group III and IV refer to ‘Silokot’ and ‘Sikoreng’ cultivars. An identification key for the four andaliman cultivars is presented. Keywords: Andaliman, Character, Clustering, North Sumatra, Morphology, Zantoxylum acanthopodium. Romaita Newanti Lumban Raja & Alex Hartana. 2017. Variasi Morfologi Andaliman (Zanthoxylum acanthopodium) di Sumatra Utara. Floribunda 5(7): 258–266. — Andaliman (Zantoxylum acanthopodium DC.) di Indonesia banyak terdapat di Sumatra Utara dan digunakan sebagai bumbu masakan khas suku Batak. Eksplorasi keberagaman andaliman telah dilakukan dan diperoleh 27 nomer sampel. Analis fenetik berdasarkan 26 karakter morfologi terhadap 27 sampel telah dilakukan dengan metode UPGMA melalui program NTSys versi 2.02. Dendrogram yang dihasilkan menunjukan ada 4 kelompok andaliman yang terpisah berdasarkan karakter utama yang membedakan setiap kelompok yaitu warna dahan muda, rambut pada dahan, onak pada ibu tulang daun, warna kelopak bunga, dan warna buah. Berdasarkan klasifikasi masyarakat, kelompok I dan II merujuk pada kultivar ‘Simanuk’ dan ‘Sihorbo’. Sedangkan kelompok III dan IV merujuk pada kultivar ‘Silokot’ dan ‘Sikoreng’. Hasil pengelompokan kemudian digunakan untuk pembuatan kunci identifikasi.Kata kunci: Andaliman, karakter, pengelompokan, Sumatra Utara, morfologi, Zantoxylum acanthopodium.

KEANEKARAGAMAN PETAI DI SUMATRA BAGIAN TENGAH Zulhendra zulhendra; Tatik Chikmawati; Alex Hartana
Floribunda Vol. 6 No. 8 (2022)
Publisher : PTTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32556/floribunda.v6i8.2022.329

Petai tersebar di Indonesia termasuk di Sumatra bagian Tengah. Keanekaragaman petai di wilayah ini belum banyak diungkapkan. Penelitian ini mengamati keanekaragaman morfologi petai yang tersebar di Sumatra bagian Tengah. Sampel dikoleksi dari 9 lokasi di provinsi Sumatra Barat, Riau, dan Jambi. Sebanyak 29 aksesi tumbuhan petai (ZH1-29) diamati 38 ciri morfologinya, selanjutnya dilakukan analisis fenetik menggunakan metode Unweighted Pair group method with arithmetic average (UPGMA). Hasil penelitian menunjukkan Petai dari wilayah ini tersusun atas dua jenis yaitu Parkia singularis Miq. dan P. speciosa Hassk. Petai bervariasi pada 9 ciri penting yaitu bentuk ujung dan pangkal anak daun; panjang tangkai polong; bentuk dan ukuran polong; jumlah biji per polong, jarak antar biji, jarak biji ke tepi polong, dan ketebalan kulit. Analisis keserupaan mengelompokan semua aksesi petai jenis P. speciosa dan memisahkan dari jenis P. singularis. P. speciosa dikelompokkan lebih lanjut sesuai dengan kultivar lokal yang dikenal masyarakat. Dua kultivar lokal memiliki ciri unggul yaitu Petai Papan dan Petai Papan1. Kunci dan deskripsi dari masing-masing nama lokal petai disediakan.

IS THE FLOWER OF PULASAN (NEPHELIUM RAMBOUTAN-AKE) A PROTOGYNY OR PROTANDRY? Nina Ratna Djuita; Alex Hartana; Tatik Chikmawati; Dorly Dorly
Floribunda Vol. 6 No. 7 (2021): Floribunda
Publisher : PTTI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32556/floribunda.v6i7.2021.359

Pulasan is an androdioecious plant that has both male and hermaphrodite flowers on separate plants. The objectives of this study were to obtain data about the anatomical structure of pulasan flower and to investigate whether the pistil and the stamens of pulasan flower reach maturity at different times. The anatomical observation was done on compound flowers taken from three male trees and three hermaphrodite trees. Two compound flowers that still in buds, about to bloom and fully bloom were picked from each tree. Flowers were observed in a cross and longitudinal section. The results showed that the sepals of pulasan flower comprised of the uniseriate epidermis and multilayered polyhedral parenchymal cells. Stamen development started from the anther followed by the formation of the filament. The pollen of hermaphrodite pulasan flowers reached maturation earlier than the pistil. The pistil development started from the expansion of meristem cells in the center of the flower and ends with the warp of the stigma.

Co-Authors , Fitmawati Ary PRIHARDHYANTO Keim Bambang S. Purwoko Dewi Komariah Dewi Sartik Amboupe Dorly Dorly Dwi Asmono Edi Guhardja Furqon Al Muzakki Gayuh Rahayu Hamim Hamim KUSWATA KARTAWINATA Meity S. Sinaga Muhammad F. R. M. Saleh Muhammad Jusuf Nampiah Sukarno Nina Ratna Djuita NURHAIDAH IRIANY SINAGA Rita Megia Romaita Newanti Lumban Raja Semuel D. Runtunuwu Sri Endarti Rahayu Sri Listiyowati Sudirman Yahya Sukmarayu P Gedoan Tatiek Chikmawati TATIK CHIKMAWATI UTUT WIDYASTUTI Y Purwanto Zulhendra zulhendra

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