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Asian Journal of Agriculture
Published by Universitas Mulawarman
ISSN : -     EISSN : 25804537     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Aims and Scope Asian Journal of Agriculture encourages submission of manuscripts dealing with all aspects to optimizing the quality and quantity of both plant and animal yield and final products, including agricultural economics and management, agricultural engineering and mechanization, agronomy and crop science, fish breeding, poultry breeding, plants and animals breeding, biotechnology, molecular biology, genetic diversity and breeding, food science and technology, land resources, land use, and remote sensing, plant pathology and pest management, microbiology, virology and bacteriology, organic agriculture, ecology and ecophysiology, physiology and nutrition, post-harvest technology, soil sciences, soilless culture, tissue culture technology, phytoremediation, and water management.
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Articles 2 Documents
 1 
Search results for , issue "Vol 3 No 02 (2019)" : 2 Documents clear
Distribution of major diseases of shallot in South Kalimantan, Indonesia SAFITRI, YUNIEKA AULIA; HASANAH, USWATUN; SALAMIAH, SALAMIAH; SAMHARINTO, SAMHARINTO; PRAMUDI, M INDAR
Asian Journal of Agriculture Vol 3 No 02 (2019)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g030201

Abstract

Abstract. Safitri YA, Hasanah U, Salamiah, Samharinto, Pramudi MI. 2019. Distribution of major diseases of shallot in South Kalimantan, Indonesia. Asian J Agric 3: 33-40. Shallot is a vegetable crop with high economic value, but its productivity in Indonesia is still relatively low. One of the causes is due to attack of the diseases. The research was conducted from November 2017 to April 2018, with the purpose of studying the distribution of major diseases of shallots in South Kalimantan. It consisted of field, laboratory, and greenhouse research. Field research involved the survey of shallots’ extensive planting in eight villages of six districts in South Kalimantan, disease symptoms, the broad of attack, and the collection of secondary data. Laboratory research included the isolation and identification of the pathogen causing diseases. The greenhouse research was conducted to perform the Postulate Koch test. The research result showed that there were two major diseases of shallots, namely Moler and Anthracnose. Pathogen causing Moler disease (Fusarium oxysporum) attacked shallot plant in six districts (Tabalong, Balangan, Tanah Laut, Kotabaru, Tapin, and Banjarbaru) and pathogen causing Anthracnose disease (Colletotrichum sp) attacked shallot plant in five districts (Tabalong, Balangan, Tanah Laut, Kotabaru, and Tapin).
Plant resistance to leaves and their effects on paddy rice production in Kutai Barat District, East Kalimantan Province, Indonesia Akhsan, Ni'matuljannah; SOPIALENA; FAHRIZAL
Asian Journal of Agriculture Vol 3 No 02 (2019)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g030202

Abstract

Abstract. Akhsan N, Sopialena, Fahrizal. 2019. Plant resistance to leaves and their effects on paddy rice production in Kutai Barat District, East Kalimantan Province, Indonesia. Asian J Agric 3: 41-46. This study was aimed to evaluate the effect of fertilizer application on the resistance of lowland commercial rice cultivars (Oryza sativa L.) against leaf spot diseases in Kutai Barat District, East Kalimantan Timur, Indonesia and to determine the factors influencing the resistance. A field experiment was conducted at rice fields in Long Iram and Linggang Bigung Sub-districts, West Kutai District and the disease identification was performed at the Laboratory of Pests and Diseases, Faculty of Agriculture, Mulawarman University. The field experiment was designed in a split-plot design arranged in a Randomized Block Design (RBD) using four replications. The main-plot was fertilizer application (P) consisting of two fertilizer application treatments, i.e., 200 kg.ha-1 Urea (p1), and 200 kg.ha-1 Urea + 200 kg.ha-1 NPK (p2). The sub-plots were varieties (V) consisted of three varieties, i.e., Ciherang (v1), Mekongga (v2) and Inpari 6 (v3). The disease identification was performed by identification of leaf spot disease isolated from the sample plants using morphological observation under a microscope. The number and density of stomata, intensity of leaf disease infection, and yield of the rice were observed. The humidity was also measured at the time of observation of leaf spot disease intensity. The results showed that different fertilizer treatments did not affect the leaf spot disease intensity but the varieties affected the disease intensity at 7, 14, 21.35 and 49 days after planting. The number of stomata of Ciherang, Mekongga and Inpari 6 varieties was 230,182 and 236 stomata/mm2, respectively. Ciherang variety was more resistant against the leaf spot disease compared to other varieties. Stomatal density does not always affect the intensity of leaf spot disease in lowland rice. There is a correlation between air humidity and the intensity of leaf disease infection. The interaction between fertilization and varieties was significant for the rice yield and the highest yield was obtained by Ciherang variety fertilized with 200 kg.ha-1 Urea + 200 kg ha-1 NPK about 3.58 Mg.ha-1 (grain wet weight).In conclusion, Fertilizer application does not affect the leaf spot disease infection and Ciherang variety is the most resistant plant against leaf spot disease compared to Mekongga and Impari 6 varieties.

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