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JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Published by Universitas Andalas
ISSN : 25800604     EISSN : 26213141     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 2 No. 1 (2018): June 2018" : 6 Documents clear
Intensitas Serangan Xanthomonas oryzae pv. oryzae pada Beberapa Varietas Padi Sawah dan Dampaknya terhadap Pertumbuhan dan Hasil Panen: bahasa inggris pinem, Terkelim; syarif, zulfadly
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.9-17.2018

Abstract

The attack intensity of several rice varieties to bacterial leaf blight (BLB) disease caused by Xanthomonas oryzae pv. oryzae is assumed to be different. This study aimed to determine the intensity of BLB attacks on several rice varieties and determine level of resistance. The research was conducted from April to July 2016 on experimental land of Center for Agricultural Training (BBPP) of Batangkaluku, Gowa Regency, South Sulawesi Province. The study used an experimental method with Randomized Block Design (RBD) in 6 treatments and 4 replications. The treatment in the form of 6 rice varieties, namely: IR 64, Ciherang, Situ Bagendit, Sintanur, Mekongga, and Celebes. The results showed that all varieties were included in the criteria of moderately resistant to bacterial leaf blight X. oryzae pv. oryzae. The attacks of BLB tended to increase every week, with the highest attacks found on 84 day after planting. The highest attack was found at 84 day after planting. The most resistant variety was Mekongga with the intensity of attacks ranging from 0 – 7.09% (resistant - moderately resistant) and able to provide the highest yield of 7.2 tons ha-1. Plant height and number of tillers were not affected by bacterial leaf blight attacks.
Preferensi dan Tingkat Serangan Keong Mas (Pomaceae canaliculata Lamarck) terhadap Beberapa Varietas Padi (Oryza sativa Linnaeus): english Rusli, Rusdi; Gani, Suardi; Hutasoit, Rudy Thomson
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.1-8.2018

Abstract

The study of preference dan attack level of golden apple snail (Pomaceae canaliculata Lamarck) on several rice varieties was carried out in farmers' paddy fields at Limau Manis, Pauh District, Padang, West Sumatera. The aim of this study was to obtain golden apple snail preferences and its attack level on several rice varieties. The experiments used a Randomized Block Design (RBD) with 8 treatments and 3 blocks. The treatments were several varieties commonly grown in West Sumatera, namely: Cisokan, IR 42, Anak Daro, IR 66, Batang Piaman, Ceredek Merah, Kuriek Kusuik, and Junjuang. The parameters observed were the preference, percentage and intensity of golden apple snail attacks on rice, and rice yield. The results showed that golden apple snail liked all rice varieties, but different varieties affected the preference and attack level. The three most preferred rice varieties by golden apple snail were IR 66, IR 42 and Anak Daro. Meanwhile the three least preferred rice varieties were Kuriek Kusuik, Batang Piaman and Junjuang with a low attack level and a high of yield.
Aktivitas Bagian Tumbuhan Sirih Hutan (Piper aduncum Linnaeus) yang Berasal dari Lokasi Berbeda dalam Menekan Pertumbuhan Colletotrichum gloeosporioides secara Invitro: english Kumalasari, Lisa; Sulyanti, Eri; Hamid, Hasmiandy
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.18-27.2018

Abstract

The boiled water of Leaves and inflorescences of spiked pepper (Piper aduncum) is one alternative to control the pathogen of anthracnose (Colletotrichum gloeosporioides) in chili. The purpose of this study was to determine the activity of leaves and inflorescences of spiked pepper from different locations in suppressing the growth of C. gloeosporioides in vitro. The research was carried out in Phytopathology Laboratory of Pests and Plant Diseases Department, Faculty of Agriculture, Universitas Andalas from March to May 2017. The study used a Completely Randomized Design (CRD) with 5 treatments and 5 replications. Data from observations were analyzed by ANOVA and LSD at the level of 5%. The parameters observed were the growth of fungal colony area, wet and dry weight, number of conidia/ml of suspension and conidia germination. The results showed that the application of leaves and inflorescences of spiked pepper from different locations could suppress the growth of C. gloeosporioides in chili in vitro. Boiled water of inflorescences of spiked pepper from Bukit Lampu - Bungus - Padang City became the best treatment because it had the highest ability in suppressing C. gloeosporioides colony area with an effective suppression of 73.5% and reducing the highest germination capacity with an effective suppression of 23.28%. Its ability to reduce wet and dry weight were not different from inflorescences boiled water from Limau Manis, then the ability to suppress the number of conidia was not significantly different from leaves and inflorescences boiled water from Bukit Lampu and Limau Manis.
Uji Konsentrasi Ekstrak Air Daun Lantana camara Linnaeus terhadap Mortalitas dan Perkembangan Spodoptera exigua Hubner (Lepidoptera: Noctuidae): english Liswarni, yenny; Sari, Nicha Puspita; Hamid, Hasmiandy
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.28-36.2018

Abstract

Spodoptera exigua Hubner is one of the major pests which attack onion crop. Botanical pesticides can be used as an alternative that is cheap, easy and environmentally friendly in controlling these pests. Lantana camara Linn is a plant that has the potential as a botanical pesticide. This study aimed at obtaining the best concentration of water extract of leaves of L. camara which was active on mortality, reduced feeding activity and development of S. exigua in the laboratory. The experiment was conducted using a Completely Randomized Design (CRD), with 6 treatments and 5 replications. The concentration was used a 0%, 2%, 4%, 6%, 8% and 10%. The treatment was done by the application through the larval feed. Parameters observed were larval mortality, reduced feeding activity, duration of larval development, the percentage of pupal, weight of pupal and percentage of adult formed. The results showed that the concentration of water extract of leaves of L. camara as insecticide with LC50 value was 5.02%. Water extract of leaves of L. camara also decreased feeding activity, inhibit development of larval, pupal and adult formed.
Aktifitas Ekstrak Metanol Kulit Buah Manggis (Garcinia mangostana L) terhadap Crocidolomia pavonana Fabricius (Lepidoptera: Crambidae): English Arneti, Arneti; Liswarni, Yenny; Sinaga, Ismi Fadhilah
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.37-43.2018

Abstract

Crocidolomia pavonana is an important pest of Brassicaceous which can be controlled by botanical insecticide. The objective of this study was to determine activity of the mangosteen peel fruit (G. mangostana) methanol extract on mortality and development of C. pavonana. The research was conducted at laboratory. The design used was a completely randomized design with four level of methanol extract of the mangosteen peel fruit on larva of 2nd instar. The extract was tested to larvae by a leaf-residue feeding method without selection. The parameters were mortality, antifeedant activity, developmental time, and numbers of pupae C. pavonana formed. The results showed that methanol extract of the mangosteen peel fruit was less effective in controlling C.pavonana. The highest concentration of extract (0.5%) caused mortality 72%, antifeedant activity 55,70%, extended larval developmental time and inhibited numbers of pupae formed of 30,66%.
Kemampuan Isolat Rizobakteri sebagai Agens Antagonis Fusarium verticillioides Penyebab Penyakit Busuk Tongkol pada Tanaman Jagung (Zea mays Linnaeus), secara Invitro: english Martinius, Martinius; yunisman, yunisman; Harpani, Aisyah
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 2 No. 1 (2018): June 2018
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.2.1.43-53.2018

Abstract

Rhizobacteria is an alternative biocontrol of Fusarium verticillioides Sacc. Nirenberg caused ear rot on maize. The aim of this study was to screen rhizobacteria isolates that had ability as antagonist agent against F. verticillioides in vitro. Rhizobacteria was isolated from rhizosphere of healty maize from two villages of West Pasaman. Twenty six rhizobacteria isolates were obtained, then tested for hypersensitive reaction (HR), pectinase enzyme production, initial inhibitory activity, and hemolytic test. Two selected isolates: RBPas1 10-6 1 and RBPas2 10-5 2 could inhibit the growth of F. verticillioides. The inhibitory activity of both isolates were observed with dual culture method, using complete random design (CRD) with 2 treatments and 5 replications, furthermore physiological characterization was conducted. RBPas1 10-6 1 and RBPas2 10-5 2 isolates had the percentage inhibition of micelial growth: 46.16% and 31.30% respectively. Physiological characterization showed that RBPas1 10-6 1 was gram negative with baciliform cells, produced chitinase enzyme, siderophores and fluorescent. RBPas2 10-5 2 was gram positive with bacilliform cells, did not produce chitinase enzyme, siderophores and fluorescent.

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