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JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Published by Universitas Lampung
ISSN : 14117525     EISSN : 24610399     DOI : -
Core Subject : Agriculture,
Jurnal Hama dan Penyakit Tropika (JHPT Tropika) publishes articles in plant pests, plant pathogens, plant damage caused by those pests and pathogens and or their management in tropical areas. In addition to basic and applied research papers, JHPT Tropika publishes short communication that have not been published. Before being accepted for publication, all manuscripts must be peer reviewed. The journal is published sixmonthly in March and September.
Arjuna Subject : -
Articles 521 Documents
SERANGAN PENGGEREK PADI PUTIH DAN PENAMPILAN AGRONOMIS GALUR-GALUR PADI SAWAH IRIGASI Suprapto dan Widyantoro .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 5 No. 2 (2005): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (66.017 KB) | DOI: 10.23960/j.hptt.2582-87

Abstract

The white rice borer (Tryporyza innotata Walker) attack and agronomic traits of low land paddy lines. Field trial evaluation on 10 lines/varieties to observe the white rice borer (Tryporyza innotata Walker) attack and agronomic traits was conducted at AIAT Lampung on wet season of 2004. The trial was conducted in endemic white rice borer area in Rejo Basuki, Seputih Raman District, Central Lampung. Experiment was arranged in a Randomized Block Design with four replications. Variables observed were precentage of plants attack, yield at 14% moisture contents, period of flowering, number of grain, total grain per panicle, number of stem per hill, plants height, maturity, 100 seed weight and vegetative and generative vigors. Results indicated that among the lines/varieties there were significant different on white rice borer incidence. The BP-360e-Mr-79-Pn-2 line showed low incidence of white rice borer, higher number of stem per hill height plant 104.9 cm, total grain per panicle of 5200 kg, 1000 grain weight and good on vegetative and better generative vigor. But no different seed is compared with other lines, the BP-360e-Mr-79-Pn-2 lines showed 49. 9 empty grain per panicle and 80% mature at 105 days harvested.
INHERITANCE OF RESISTANCE TO PStV IN TRANSGENIC PEANUTS CONTAINING cp PStV GENE Dwi Hapsoro, Hajrial Aswidinnoor, Rusmilah Suseno, Jumanto, dan Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 8 No. 1 (2008): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (186.136 KB) | DOI: 10.23960/j.hptt.1831-38

Abstract

Inheritance of Resistance to PStV in Transgenic Peanuts Containing cp PStV Gene. We have obtained transgenic peanut lines containing coat protein gene of PStV. To get maximal use of the transgenic character in a breeding program, it is necessary that the transgene is also stably inherited and expressed. This experiment was conducted from June 2002 – January 2005 at Plant Molecular Biology Laboratory, Bogor Agricultural University, and Queensland Agricultural Biotechnology Center, The University of Queensland, Australia. The research aimed (1) to test whether PStV cp transgene was functional in progenies derived from crosses between transgenic peaanut plants containing PStV cp gene and non-transgenic ones and (2) to determine pattern of inheritance of resistance to PStV as a result of PStV cp gene action. Several crosses were made between trangenic peanut cv.Gajah resistant to PStV (T4 generation) and non-transgenic peanut line WS susceptible to PStV. The F1 and F2 populations were mechanically inoculated with PStV two weeks after planting. The experiment showed that all plants in the F1 population were less susceptible to PStV, suggesting that the transgene was partially dominant. Phenotipic segregation in F2 population was not Mendelian with the appearance of quick and slow recovery plants and the number of resistant plants being more than expected. However, the proportion of transgenic and non-transgenic plants followed 3:1 ratio, which was Mendelian.
KARAKTERISTIK KOMUNITAS NEMATODA DI PADANG GOLF SUKARAME (PGS) BANDAR LAMPUNG I Gede Swibawa dan Titik Nur Aeny .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 7 No. 2 (2007): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.166 KB) | DOI: 10.23960/j.hptt.2780-90

Abstract

ABSTRACTCharacteristic of Nematodes Community at PGS Golf Course Bandar Lampung. Golf course is a unique ecosystem where plant parasitic nematodes inhabit and become important pest because they reduce the quality of the grass. The pest problems on golf course can be indicated by its characteristics of nematode community. Survey on nematodes community at PGS Golf Course Bandar Lampung was conducted from March to December 2004. The objective was to study the characteristics of nematode community in the part of golf courses hole (green, collar, apron, and fairway). Soil samples were taken from five holes each of it consists of green, collar, apron, and fairway, respectiveley. Nematodes extraction was done in Laboratory of Arthropod Pest, Department of Plant Protection University of Lampung. The result showed that at least 50 nematodes genera of 28 families inhabit PGS. The number of plant parasitic nematode genera was higher than the free-living one. The characteristic of nematodes community on green and collar was different than on faiway. Nematode abundance and diversity on green and collar were higher than on fairway. Based on abundance of nematode feeding group, maturity index of free-living nematodes (MI) and that of plant parasitic nematodes (PPI), green and collar part seemed to be more favorable to plant parasitic nematodes than free-living nematodes. The contrary happened for fairway. Four most dominant genera of plant parasitic nematodes on PGS golf course were Helicotylenchus, Hoplolaimus, Criconemella, and Xiphinema.
INSECT PESTS IN AGROECOSYSTEM WHERE THREE CORN VARIETIES WERE GROWN UNDER CONSERVATION VERSUS FULL TILLAGE SYSTEM IN NATAR, SOUTH LAMPUNG IN 2001 GROWING SEASON F.X. Susilo and I Gede Swibawa .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 2 No. 1 (2002): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (110.249 KB) | DOI: 10.23960/j.hptt.128-14

Abstract

Serangga hama pada pertanaman jagung yang dibudidayakan dengan olah tanah konservasi di Natar Lampung Selatan pada musim tanam 2001. Penelitian sebelumnya (musim penghujan 2000) menunjukkan bahwa serangga yang berpotensi menjadi hama tanaman jagung di Lampung Selatan adalah lalat bibit jagung (LBJ) (Atherigona sp.) yang tidak selalu dapat diatasi dengan perlakuan benih dan penggerek tongkol (Helicoverpa armigera) yang serangannya terbatas pada ujung tongkol. Penelitian pada tahun ini (musim kemarau 2001) dilakukan untuk menjawab beberapa pertanyan berikut: (1) Apakah ada serangga lain yang berpotensi menjadi hama pada tiga varietas jagung yang dibudidayakan dengan olah tanah konservasi (OTK) versus olah tanah penuh (OTP)? dan (2) Sejauh manakah serangan lalat bibit jagung dan Helicoverpa pada tahun ini? Informasi terkini yang diperoleh adalah sebagai berikut. Selain diserang oleh LBJ dan Helicoverpa, pertanaman jagung tahun ini diserang pula oleh wereng coklat (WCJ) (Nilaparvata sp.) dan penggerek batang (PBJ) (Ostrinia sp.) Serangan LBJ dapat menyebabkan berkurangnya populasi tanaman produktif sebesar < 1% dan 4&mdash;12%, berturut-turut pada sistem OTK dan OTP. Dibandingkan dengan pemulsaan (kegiatan utama dalam OTK), perlakuan benih menggunakan insektisida imidacloprid kurang efektif untuk mengendalikan serangan LBJ. WCJ cenderung lebih menyerang pertanaman jagung (apa pun varietasnya) yang dibudidayakan dengan OTK. Belum nampak adanya kecenderungan serangan PBJ pada salah satu varietas jagung atau pada satu di antara dua sistem olah tanah yang diuji. Selain menyerang tongkol seperti pada tahun sebelumnya, Helicoverpa pada tahun ini juga menyerang daun. Pada tahun ini serangan pada tongkol berlanjut sehingga menimbulkan kerusakan biji.
UJI KESESUAIAN EMPAT ISOLAT TRICHODERMA SPP. DAN DAYA HAMBAT IN VITRO TERHADAP BEBERAPA PATOGEN TANAMAN Loekas Soesanto; Endang Mugiastuti; Ruth Feti Rahayuniati; Ratna Stia Dewi
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 2 (2013): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.273 KB) | DOI: 10.23960/j.hptt.213117-123

Abstract

Compatibility test of four Trichoderma spp. Isolates and in vitro inhibition ability on several plant pathogens. In vitro descriptive compatibility research was carried out to know the compatibility among Trichoderma spp. isolates and their inhibition ability toward several plant pathogens. Four Trichoderma spp. isolates used were ginger, shallot, banana, and pineapple isolates; while the pathogens used were pathogenic fungi (Fusarium, Colletotrichum, Phytophthora, and Sclerotium), bacteria (Ralstonia), and nematode (Meloidogyne dan Globodera). Observation was done toward inhibition zone between Trichoderma spp. isolates, colony radial growth, mycelial dry weight, and nematode mortality. Result of the research indicated that the four Trichoderma spp. isolates were compatible and no growth inhibition was observed. The inhibition ability of all Trichoderma spp. isolates varied and the ginger isolate had the highest inhibition ability and mortality on all fungal species and the nematodes, while on the pathogenic bacteria there was no inhibition.
SEDIAAN BIJI BARRINGTONIA ASIATICA: AKTIVITAS PADA HAMA KUBIS CROCIDOLOMIA PAVONANA DI LABORATORIUM DAN KEEFEKTIFAN DI LAPANGAN Edy Syahputra .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 2 (2010): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (103.497 KB) | DOI: 10.23960/j.hptt.210100-107

Abstract

Preparation of Barringtonia asiatica: insecticidal activity against Crocidolomia pavonana on laboratory and effectiveness on field. The objectives of this study were to evaluate the insecticidal and anti-oviposition activity of ethanol seed extract of Barringtonia asiatica against Crocidolomia pavonana in the laboratory, and to determine the effectiveness of a simple preparation of B. asiatica seeds in supressing oviposition and population of C. pavonana in the field. The mortality bioassays were conducted by a leaf-feeding method. Anti-oviposition activity was assessed by a choice-test in the nursery. The results showed that the ethanol seed extract of B. asiatica possessed strong insecticidal activity against C. pavonana larvae with LC50 of 0.14%. The extract at concentrations of 0.14-1.00% reduced oviposition by C. pavonana female as much as 65.7-95.6%. B. asiatica seeds ground in water for 5 seconds and then immersed for 1 hour at a concentration of 50 g l-1 yielded a simple preparation which was active against C. pavoana larvae. Such simple preparation at a concentration of 75 g l-1 sprayed on cabbage crop effectively suppressed population of C. pavonana larvae in the field.
PENURUNAN KEPARAHAN PENYAKIT BUSUK PANGKAL BATANG PADA LADA AKIBAT APLIKASI BAHAN ORGANIK DAN TRICHODERMA HARZIANUM Cipta Ginting; Tri Maryono
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 2 (2012): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (193.509 KB) | DOI: 10.23960/j.hptt.212162-168

Abstract

Foot rot of black pepper (Piper nigrum L.) caused by Phytophthora capsici Leionian is commonly considered as one of the most important problems in black pepper production. The objectives of this research was to determine the influence of organic matter and Trichoderma spp. on the severity of foot rot of black pepper. On the first experiment, five Trichoderma mycelial plugs were applied on planting medium consisting of soil, organic matter, and sand (2:2:1, v/v), then incubated for 7 days. Black pepper plants were transferred to the planting medium and after 14 days were inoculated on the stems. The variable observed was disease severity on the stem. On the second test, Trichoderma that was grown on broken rice (menir) as starter was applied into the planting medium which consists of soil and sand (2:1, v/v). Two weeks later, black pepper plants were inoculated on the leaves and stems. The variables observed were the diameter of necrotic on the leaves and disease severity on the stem. On the first experiment when 15 isolates of Trichoderma spp. were tested, five isolates (T. harzianum isolates 6, 8, 9, 10, and 15) significantly reduced disease severity. However, on the second test when four out of the five effective isolates were retested, none was found to significantly reduce disease severity on leaves or stems.
KETAHANAN DUA PULUH SATU VARIETAS PADI TERHADAP PENYAKIT HAWAR DAUN BAKTERI Heru Adi Djatmiko dan Fatichin .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 2 (2009): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.249 KB) | DOI: 10.23960/j.hptt.29168-173

Abstract

Resistance of twentyone rice varieties to Bacterial Leaf Blight. Bacterial leaf blight is one of the most important diseases of rice plants. Resistant Variety is one of safe, effective, and environment friendly alternative controls to suppress the bacterial leaf blight on rice. The objectives of this research were to find the most resistant varieties against bacterial leaf blight, and to study the yield of inoculated rice varieties. The research was carried out experimentally. This experiment was arranged in Randomized completely block design with 22 treatments and three replicates. Varieties of IR64 as control for susceptible varieties. Observed Variables were incubation period, disease intensity, seed weight per panicle, and seed weight per hills. The result of this research showed that variety IR 70 was the most resistant variety to bacterial leaf blight. Variety having highest yield was Rojolele with seed weight per hill was 31.17 g.
PENGARUH FRAKSI AKTIF AGLAIA HARMSIANA PERKINS (MELIACEAE) TERHADAP FISIOLOGI LARVA SPODOPTERA LITURA (F.) (LEPIDOPTERA: NOCTUIDAE) Eka Candra Lina, Djoko Prijono, dan Dadang .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 6 No. 1 (2006): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.864 KB) | DOI: 10.23960/j.hptt.161-8

Abstract

The effect of active fraction Aglalia harmsiana Perkins (Meliaceae) to physiology of Spodoptera litura (F.) (Lepidoptera : Noctuidae) larvae. This study was conducted to evaluate the physiological interferences in the soybean armyworm Spodoptera litura caused by active fractions of Aglaia harmsiana seed extract. The activity of the test materials was assessed by dietary preparation and topical application method. Repeated fractionations of A. harmsiana extract by chromatographic methods yielded two active fractions, designated as fraction 2-7 (0.0184%) and 2-8 (0.3773%). The results showed that fraction 2-8 had strong insecticidal activity against S. litura larvae, with LC50 by topical application and dietary preparation were 0.49% and 0.0044%, respectively. A sublethal treatment with the active fraction (LC25) reduced the relative growth rate, efficiency of conversion of ingested food, and efficiency of conversion of digested food by 52.9%, 42.9%, 49.6% with topical application and 66.7%, 50%, 63.8% with dietary preparation method. The treatments with that fraction at LC10 and LC25 to the fourth instars reduced the activity of invertase enzyme by 34% and 47%, but increased the activity of trehalase by 6.2% and 12.5% as compared with controls.
MEKANISME KETAHANAN KENTANG (SOLANUM TUBEROSUM) TERHADAP NEMATODA SISTA KUNING (GLOBODERA ROSTOCHIENSIS) Dewi Fitriyanti, Mulyadi, dan Christanti Sumardiyono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 9 No. 1 (2009): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
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Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.093 KB) | DOI: 10.23960/j.hptt.1946-53

Abstract

Resistance mechanism of potato (Solanum tuberosum) to golden cyst nematode (Globodera rostochiensis). The research was conducted from June 2005 to May 2006 in Kepuhharjo, Cangkringan, Sleman, Yogyakarta. The aims of the research were to find the resistance status of 20 potato varieties, role of chlorogenic acid and caffeic acid in the resistance mechanism and histopathological differences between resistant and susceptible potato varieties to G. rostochiensis. The results showed that two varieties were resistant to G. rostochiensis, i.e, Hertha and Manohara. Thirteen varieties were moderately resistant, i.e; No.30, No.44, No. 5, No.19, Batang Hitam, Agria, Desiree, Berolina, Atlantik, No.095, Cipanas, FLS and Colombus, and five varieties were susceptible, i.e; Kikondo, Granola, Erika, LBR, and Fries. The presence of chlorogenic acid and caffeic acid in Hertha (resistant variety) and in Granola (susceptible variety) were analized by TLC. In Hertha chlorogenic acid was detected at 4, 5, and 6 days after inoculation (DAI), whereas in Granola it was detected at 1 and 6 DAI. It was assumed that the presence of chlorogenic acid for 3 successively week in Hertha, caused it more resistant than Granola. Cell lignification inhibited G. rostochiensis grow well inside the root tissue of Hertha, whereas in Granola only a few cell was lignified as indicated by less absorption of red colour (safranin) in infected areas. Caffeic acid was not detected either in uninoculated or inoculated of both potato varieties. It indicated that caffeic acid might not be naturally present in Hertha and Granola and nematode infection could not stimulate the production of this compound.

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