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JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA

JHPT TROPIKA
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Published by Universitas Lampung

ISSN : 14117525 EISSN : 24610399 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

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.

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Articles 521 Documents

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POLA SEGREGASI DAN HERITABILITAS SIFAT KETAHANAN KEDELAI TERHADAP COWPEA MILD MOTTLE VIRUS POPULASI WILIS X MLG2521 Maimun Barmawi .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 7 No. 1 (2007): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Segregation and Heritability of Cowpea Mild Mottle Virus Resistant Characters of Soybean Genotypes from Crosses Between Wilis and Mlg2521 Population. This research was conducted within July to October, 2005 at experiment station of Lampung University. The aims of this research were to evaluate the segreation and heritability of resitant characters at F2 population of Wilis x Mlg2521. The result showed that segregation of resistant characters segretate 13:3 of succeptible and resistant genotypes. Heritability in the narrow sense based on disease severity was 13,18% (low) and heritabilitas heritability in the broad-sense was 80,91% (high).

EPIDEMI PENYAKIT BUSUK PANGKAL BATANG LADA PADA KONDISI LINGKUNGAN YANG BERVARIASI La Ode Santiaji Bande; Bambang Hadisutrisno; Susamto Somowiyarjo; Bambang Hendro Sunarminto
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 1 (2015): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Foot rot disease epidemic on black pepper in variety of environmental conditions. The foot rot disease on black pepper caused by Phytophthora capsici Leonian, is often destructive to farmers of black pepper. This research aims to study the infection rate and the pattern of development of the black pepper foot rot disease in various condition of the environment. The research was conducted in the areas of black pepper cultivation in the Ultisol and Entisol soils. In each location plots were set with few (<25%) and abundant (>75%) weeds. Variable observed was disease incidence. The data were used to analyze model of development of the black pepper foot rot disease and infection rate. Results of the research showed that the model of development of the black pepper foot rot disease was not affected by soil type, but the type of soil affected the infection rate. At the pepper plantation with abundance of weeds, the disease development followes Gompertz model. At the plantation with few weeds, however the disease developed in a logistic model. The rate of disease infection on the black pepper plant with abundant weeds lower compared with those with few weeds.

PENGARUH SUHU DAN KERAPATAN INANG TERHADAP SUPERPARASISTISME OLEH ERIBORUS ARGENTEOPILOSUS: IMPLIKASI BAGI PENGENDALIAN HAYATI Novri Nelly; Damayanti Buchori
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 16 No. 1 (2016): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Effect of temperature and host density on superparasitisme by Eriborus argenteopilosus: Implication for biologicalÂ control. Superparatism is a type of parasite in which the host is attacked by another parasitoid. Superparatism is influenced by several factors including temperature and host density. The aim of this research was to investigate the effect of temperature and host density on superparatism E. argenteopilosus. Different number of larva C. pavonana (15, 30, 60, 90 and 120) was infested with a female parasitoidat various temperature (200, 250, and 300C) for three hours. The larva host was disectionto enable us to count the number of eggs. The study result reveals that superparatism E. argenteopilosus was influenced by temperature and host density. Superparatism occured randomly at different temperature reaching the highest at 200 with host density of 15 and 30.

HAMA BELALANG KEMBARA (LOCUSTA MIGRATORIA MANILENSIS MEYEN): FAKTA DAN ANALISIS AWAL LEDAKAN POPULASI DI PROVINSI LAMPUNG Hamim Sudarsono .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 3 No. 2 (2003): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Migratory locust (Locusta migratoria manilensis Meyen) : Preliminary facts and analyzes on the population outbreaks in Lampung Province. The migratory locust (locally known as belalang kembara), Locusta migratoria manilensis Meyen (Orthoptera: Acrididae), has become a major insect pest in Lampung in recent years since its outbreak in 1998. Thousand hectares of agricultural fields were severely destroyed by the locust populations during the course of the outbreak. Local as well as national government were caught in surprised by the population upsurge with little information and technology available for controlling the pest. First presence of locust population was recorded in Kecamatan Pakuan Ratu in 1990. Area damage in the first year was ca. 60 ha. The population grew steadily over the years and reached its peak in April-May of 1998 when thousands of corn and rice fields were severely damaged. Country roads and fields were filled with millions of locust nymphs. Records of locust attacks during preliminary outbreaks from 1990 to 1998 also indicated that the insect started its outbreak from the same areas during those years, i.e. North Lampung District and northern Tulang Bawang District (two of the outmost northern of Lampung Province). Insect pest control experts were very concerned that the locust has established its populations in the region and could cause significant loss in the upcoming years. Control strategy and techniques based on the insect biology and population dynamics, therefore, should be explored and developed to manage future outbreaks. This paper discusses and analyzes preliminary facts and information on the migratory locust and possible strategies that could be implemented for managing the locust.

PENGKLONAN DAN PERUNUTAN NUKLEOTIDA GEN SELUBUNG PROTEIN DAN 3â€™UTR (untranslated region) PEANUT STRIPE VIRUS Hasriadi Mat Akin
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 1 No. 1 (2001): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Cloning and sequencing of coat protein gene and 3’UTR (untranslated region) of peanut stripe virus. The cDNA of 3' terminal of peanut stripe virus genomic RNA was cloned and sequenced. The cDNA was ligated with plasmid vector pGEM-T Easy and transformed to competent cells of Escherichia coli. The 3' terminal of PstV genomic RNA contained 1195 nucleotides (nts). The region included the nucleotide sequences of NIb (nuclear inclusion body) (129 nts), CP gene (coat protein gene) (861 nts), and 3'UTR (untranslated region) (205 nts). The nucleotide sequence of a CP gene contained one long uninterrupted open reading frame (ORF) without a start codon, which ended a UAG stop codon. The 287 amino acid residues of PStV coat protein were predicted from the CP gene. The amino acid was analyzed for the presence of consensus polyprotein cleavage site for maturation of potyvirus polyprotein. A putative cleavage site was found at position 43 (Q/S) following the Valine (V) residue at -4 position. This isolate of PstV can be expected to be aphid transmissible because the coat protein contained a DAG triplet at position 53-55.

Keanekaragaman, Dominasi, Persebaran Spesies Penggerek Batang Padi dan Serangannya pada Berbagai Tipologi Lahan di Provinsi Jambi . Wilyus; Fuad Nurdiansyah; Asni Johari; Siti Herlinda; Chandra Irsan; Yulia Pujiastuti
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 13 No. 1 (2013): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Diversity, domination, and distribution of rice stem borer species and its damage in various land typologies in Jambi Province. The research was conducted to analyze the diversity, domination, species distribution of rice stem borers (RSB) and its damage on various land typologies in Jambi Province. The research was carried out using survey method, from December 2010 until June 2011. Samples of RSB were collected from tidal swamp in Tanjung Jabung Timur District, swampy area in Muaro Jambi District, rainfed lowland in Sarolangun District, irrigated lowland in Merangin District, and irrigated upland in Kerinci District and Sungai Penuh District. The results showed that there were five spesies of RSB found in Jambi Province. Scirpophaga incertulas Walker (yellow stem borer) was the most dominant of RSB, followed by Sesamia inferens Walker (pink stem borer), Chilo suppressalis Walker (striped stem borer), Chilo polychrysus Meyrick (dark-headed stem borer), and Scirpophaga innotata Walker (white stem borer). The distribution of S. incertulas, S. inferens, C. suppressalis and C. polychrysus were in all of rice field in Jambi Province, but that of S. innotata was limited over tidal swamp and rainfield lowland area. The RSB damage rate was lower than economic thereshold.

PENAMPILAN KETAHANAN ENAM VARIETAS KACANG TANAH TERHADAP PENGGEREK POLONG (ETIELLA ZINCKENELLA TRIETSCHKE) DI DATARAN TINGGI DAN DATARAN RENDAH BENGKULU Dwinardi Apriyanto, Burhannudin Toha riyatiningsih & D. Suryati .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 10 No. 1 (2010): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Resistance performance of six groundnut varieties to Soybean Pod Borer (Etiella zinckenella Treitschke) at high and low elevation in Bengkulu. Soybean pod borer (SPB), Etiella zinckenella Treitschke, often caused serious pod damage and reduced pod yield in several groundnut central in Bengkulu. Field trials were conducted in two locations, Air Dingin (Rejang Lebong, 900 m asl.) and Kuro Tidur (Bengkulu Utara, 200 m asl.) to evaluate resistance performance of groundnut varieties to SPB. Six varieties, Jerapah, Kacil, Bison, Pather, Singa dan Singa, were grown in Air Dingin. Five varieties ( as above but minus Sima) were grown in Kuro Tidur. Susceptible local variety was used as control. Varieties were arranged in plots in randomized complete block design (RCBD) replicated three times, in 3 m x 5 m plots and 20 cm x 30 cm planting space. Dolomite was applied at doses of 0.333 ton ha-1 in Air Dingin and 3 ton ha-1 in Kuro Tidur. Plants were fertilized with N (Urea) - P (TSP) - K (KCl) at the nationally recommended doses (70 - 125 - 70 kg ha-1). Damaged pods and larval density were observed three times at 63, 77 and 93 day after sowing (SAW). Undamaged pods was weighted at harvest. Data were analyzed with analysis of variance and LSD to separate varietal means. The results revealed that the numbers and percetages of damaged pods incresed with plant age. Four groundnut varieties (Kancil, Panther, Singa and Sima) suffered significantly less pod damage than local variety and the other two (Jerapah and Bison), and therefore they are more resistance than the last three. Regardless of varieties, pod damage was significantly higher in Kuro Tidur than that in Air Dingin. The weight of undamage pods of resistance varieties was significantly higher than that of local, but was not significantly difference from that of Bison and Jerapah, in Air Dingin. In contrast, there was no significant different undamage pod weight between all varieties in Kuro Tidur.

KERAGAMAN DAN HERITABILITAS KETAHANAN TEBU POPULASI F1 TERHADAP PENYAKIT BERCAK KUNING DI PT GUNUNG MADU PLANTATIONS LAMPUNG Nyimas Saâ€™diyah; Titik Nur Aeny
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 12 No. 1 (2012): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

The objective of this study was to estimate variability and heritability of yellow spot disease characters of 12 sugarcane genotypes. The experiment was conducted on sugarcane field in PT Gunung Madu Plantations (PT GMP), Gunung Sugih Central Lampung, from January to May 2009. The treatments consisted of 12 F1 sugarcane genotypes resulted from the previous crossing of several existed varieties done by PT GMP research and development. The variability was estimated using the method from Anderson and Bancroft (1952) and the heritability was estimated based on the method from Allard (1995). The results showed that the severity of sugarcane yellow spot disease in the PT GMP Lampung showed high variability but low heritability (0.21). Out of 12 tested sugarcane genotypes, G12 has the highest resistance showed by the lowest disease severity.

PENGARUH IRADIASI SINAR GAMMA [60Co] TERHADAP BACTROCERA CARAMBOLAE DREW & HANCOCK IN VITRO DAN IN VIVO Endang Sri Ratna; Kemas Usman; Indah Arastuti; Dadan Hindayana
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 15 No. 1 (2015): MARET, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Effect of gamma irradiation [60Co] against Bactrocera carambolae Drew & Hancock in vitro and in vivo. Bactrocera carambolae Drew & Hancock is one of the most important pests on guava fruit. According to a quarantine regulation in export-import commodities, irradiation treatment is a suitable methods for eradicating infested organism, which is relatively safe for the environment. The aim of this research was to determine mortality doses and an effective dose of [60Co] gamma ray irradiation for the eradication purpose, and its implication on the survival of fruit fly B. carambolae. Two irradiation methods of in vitro dan in vivo were carried out, by exposing egg and 3rd instar larvae of B. carambolae obtained from the laboratory reared insect. Eleven doses of gamma ray irradiation of 0, 30, 50, 75, 100, 125, 150, 175, 200, 300, 450, and 600 Gy were applied, respectively. The level of 99% fruit fly mortality was estimated by the value of LD99 using probit analysis and the number of larvae, pupae and adult survival were evaluated by analysis of variance (ANOVA), and the means compared by Tukeyâ€™s test, at 5% of significance level. These result showed that the effective lethal dose (LD99) of irradiation that could be successful to eradicate eggs and 3rd instar larvae in vitro were 2225 and 2343 Gy and in vivo were 3165 dan 3177 Gy, respectively. Almost all of the treated larvae survived and developed to pupae, therefore only the minimum irradiation dose of 30 Gy allowed the pupae to develop into adults.

KETAHANAN TERHADAP PENYAKIT BERCAK DAUN LAMBAT (CERCOSPORIDIUM PERSONATUM) DAN KARAKTER AGRONOMI KACANG TANAH FAMILI F5 KETURUNAN PERSILANGAN KELINCI x SOUTHERN RUNNER Setyo Dwi Utomo, Ety Setiowati, dan Hasriadi Mat Akin .
Jurnal Hama dan Penyakit Tumbuhan Tropika Vol. 5 No. 2 (2005): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

The resistance to late leaf spot (Cercosporidium personatum) and agronomic characters of peanut F5 families derived from crosses between Kelinci x Southern Runner. Late leafspot disease in peanut can be controlled by planting resistant cultivars. The objective of this study was to evaluate the resistance of nine F5 families derived from crosses between Kelinci and Southern Runner. Gajah, Kelinci, Panter, and Southern Runner were used as controls. Experiments was arranged in a randomized complete block design with three replications. The resistance was evaluated based on the score of disease severity. The results indicated that F5 families of K/SR-2 and K/SR-9 were more resistant to late leafspot and yielded higher than Gajah, Panter, and Kelinci. Families K/SR-7 and K/SR-8 were tolerant to late leafspot.

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