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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

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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

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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

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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.

PERTUMBUHAN TANAMAN JARAK PAGAR (Jatropha curcas L.) PADA LAHAN PASCA TAMBANG TIMAH DI BANGKA YANG DIBERI PUPUK ORGANIK Sukmarayu P Gedoan; Alex Hartana; Hamim Hamim; Utut Widyastuti; Nampiah Sukarno
JURNAL ILMIAH SAINS Volume 11 Nomor 2, Oktober 2011
Publisher : Sam Ratulangi University

PERTUMBUHAN TANAMAN JARAK Â PAGAR (Jatropha curcas L.) PADA LAHAN PASCA TAMBANG TIMAH DI BANGKA YANG DIBERI PUPUK ORGANIK Sukmarayu P. Gedoan1), Alex Hartana2), Hamim2), Utut Widyastuti2) dan Nampiah Sukarno2) 1)Program Studi Biologi, FMIPA Universitas Negeri Manado di Tondano; 2)Departemen Biologi, FMIPA, Institut Pertanian Bogor, Bogor 16680 Â ABSTRAK Kegiatan penambangan timah menyebabkan perubahan karakteristik fisika dan kimia tanah sehingga menjadi tidak sesuai untuk pertumbuhan tanaman.Â Tujuan penelitian ini untuk mempelajari pertumbuhan 7 aksesi jarak pagar yang ditanam pada lahan pasca tambang timah yang diberi kompos dan kotoran sapi.Â Penelitian ini dilakukan di TSS 133, Kelurahan Sinar Baru, Kabupaten Bangka, Provinsi Bangka Belitung.Â Penelitian lapangan dilaksanakan pada Bulan Mei 2007 sampai dengan Bulan DesemberÂ 2008.Â Percobaan faktorial ini dirancang dalam Rancangan Petak Terbagi dengan tiga ulangan.Â Petak utama adalah 7 aksesi jarak pagar yang terdiri atas: aksesi Madiun, Ponorogo, Jember, Dompu, Lampung, Bengkulu,Â dan Sukabumi, sedangkanÂ anak petak berupa tanah tanpa pemberian kompos dan pupuk kandang (kontrol), kompos trubus 4 kg/lubang ditambah 4 kg tanah bagian atasÂ dan Â kotoran sapi 4 kg/lubang ditambah 4 kg tanah bagian atas. Hasil penelitian menunjukkan bahwa pertumbuhan awal yang paling baik untuk tanah bekas tambang timah adalah pada aksesi Jember yang ditunjukkan oleh diameter batang, berat kering tanaman, berat kering tajuk dan berat kering akar.Â Sedangkan tinggi tanaman tertinggi diamati pada aksesi Madiun.Â Penambahan kotoran sapi dapat meningkatkan produksi biji dan kandungan minyak.Â Produksi biji tertinggi diperoleh pada aksesi Bengkulu dan kandungan minyak tertinggi diperoleh pada aksesi Dompu. Kata kunci: aksesi, Jatropha curcas, kompos, kotoran sapi Â THE GROWTH OF CASTOR OIL PLANT (Jatropha curcas L.) ON THE POST-TIN-MINING LAND IN BANGKA PROVIDED WITH ORGANIC FERTILIZER ABSTRACT The activity of tin mining changes the physical and chemical characteritics of soil, so that the soil isnot suitable for plant growth.Â The objective of this research was to evaluate the growth of some accession of Jatropha curcas that we planted on post-tin-mining land provided with compost and cow feces.Â Â This research was conducted in TS 133, Sinar Baru Village, District of Bangka, Province of Bangka Belitung.Â This field research was carried out in May 2007 to December 2008.Â Factorial experiment was designed as split plot with three replications.Â The main plot was 7 accessions, i.e. Madiun, Ponorogo, Jember, Dompu, Lampung, Bengkulu, andÂ Sukabumi.Â The subplot waskonds of organic fertilizer, i.e. top soil without addition of compost and cow fecer (control), trubus compostÂ (4 kg/hole) added with top soil (4 kg/hole), and cow feces (4 kg/hole) added with topbsoil (4 kg/hole). The result showed that Jember accession had the best early growth based on the observation of stem diameter, plant dry weight, and root dry weight.Â The largest plant height was observed in Madiun accession.Â The higest seed production was observed in Bengkulu accession and Dompu accession had the higest oil content.Keywords: accession, Jatropha curcas, , compost, cow feces

THE RESURRECTION OF SCHIZOSTACHYUM BIFLORUM McCLURE (BAMBUSOIDEAE) Furqon Al Muzakki; Tatik Chikmawati; Alex Hartana
Reinwardtia Vol. 19 No. 2 (2020)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v19i2.3930

MUZAKKI, F. A., CHIKMAWATI, T. & HARTANA, A. 2020. The resurrection of Schizostachyum biflorum McClure (Bambusoideae). Reinwardtia 19(2): 93‒96. ‒‒ Based on newly collected specimens from Mount Salak referable to Schizostachyum biflorum, made it justifiable to recognize this species as different from S. iraten Steud., to which formerly it was synonymized. A complete description of S. biflorum, a comparative tabulation of the morphological features that distinguished it from S. iraten, and figures of the two species are presented.

THE RESURRECTION OF SCHIZOSTACHYUM BIFLORUM McCLURE (BAMBUSOIDEAE) Furqon Al Muzakki; Tatik Chikmawati; Alex Hartana
Reinwardtia Vol. 19 No. 2 (2020)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v19i2.3930

MUZAKKI, F. A., CHIKMAWATI, T. & HARTANA, A. 2020. The resurrection of Schizostachyum biflorum McClure (Bambusoideae). Reinwardtia 19(2): 93‒96. ‒‒ Based on newly collected specimens from Mount Salak referable to Schizostachyum biflorum, made it justifiable to recognize this species as different from S. iraten Steud., to which formerly it was synonymized. A complete description of S. biflorum, a comparative tabulation of the morphological features that distinguished it from S. iraten, and figures of the two species are presented.

THE ECOLOGY AND DISTRIBUTION OF FREYCINETIA GAUD. (PANDANACEAE; FREYCINETOIDEAE) IN THE INDONESIAN NEW GUINEA NURHAIDAH IRIANY SINAGA; RITA MEGIA; ALEX HARTANA; ARY PRIHARDHYANTO KEIM
Reinwardtia Vol. 13 No. 2 (2010)
Publisher : BRIN Publishing (Penerbit BRIN)

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SINAGA, N. I., MEGIA, R., HARTANA, A., KEIM, A. P. Ecology and distribution of Freycinetia Gaud. (Pandanaceae; Freycinetoidea) in Indonesian New Guinea. Reinwardtia 13(2): 189-197. - The study mainly concerns with the species of Freycinetia that occurs in the Indonesian New Guinea, including the provinces of Papua and Papua Barat. The study indicates that almost all species of Freycinetia in the Indonesian New Guinea prefer high humidity and abundantly occur along rivers, except for the members of the group of species with imbricate leaves, which inhabit also secondary forests. Futhermore, the members of this group have never been found within the range of 1700 to 3000 m altitudes. This highest range of altitudes is specifically occupied by the members of the groups of species with semi imbricate and grass-like leaves. The costal forests are inhabited by the groups of species with semi and non imbricate leaves. Indonesian New Guinea shares many species with Papua New Guinea, except for the members of the group of species with semi imbricate leaves, which are more common in Indonesian New Guinea than in Papua New Guinea. On the contrary, the members of the group of species with grass-like leaves are more common in Papua New Guinea and becoming rare toward the Indonesian site and becoming absent in the Vogelklop (Bird's head), except for F. polyclada which is commonly found in Sorong. Indonesian New Guinea possesses 34 species exclusively distributed in the area, while Papua New Guinea has 72 species. The two areas share 52 species. Only five species have extra New Guinean distributions, i.e. F. excelsa, F. funicularis, F. marginata, F. percostata, and F. scandens

Leaf anatomy of Pandanus species (Pandanaceae) from Java Sri Endarti Rahayu; Kuswata Kartawinata; Tatiek Chikmawati; Alex Hartana
Reinwardtia Vol. 13 No. 3 (2012)
Publisher : BRIN Publishing (Penerbit BRIN)

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The leaf epidermis and mesophyll of fifteen species of Pandanus from Java were investigated to assess the value of anatomical features in species identification and classification. Characters of diagnostic importance are epidermal cell shape, differentiation of the abaxial epidermis into costa and intercosta, adaxial anticlinal cell wall outline, occurrence of raphides in the mesophyll, distribution of cubical crystals, pallisade cell shape, papillae on epidermal cells, and the stomatal complex. Leaf epidermal anatomy was found to be useful in the identification at species level.

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