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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.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 1 No 02 (2017)" : 6 Documents clear
Analysis of flowering gene in palm oil (Elaeis guineensis) FAIZAL, IRVAN; EMDI, AXEL
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010201

Abstract

Faizal I, Emdi A. 2017. Analysis of flowering gene in palm oil (Elaeis guineensis). Asian J Agric 1: 53-58. Palm oil has always been an important commodity in Indonesia. The most common species is palm oil, Elaeis guineensis. Palm oil is a monoecious plant with a tendency to be a temporal dioecious. Female flower will be the one that produces palm oil fruit, that later is treated with palm oil while male flower only takes part in the fertilization process. In order to know the ratio between female and male flower tree in a plantation, this study was performed to detect a distinction between female and male flowering gene sequences from DNA sample of E. guineensis. Based on previous study which managed to characterize MADS-box gene of palm oil, a primer was designed and named GmG (Globosa-male-Gaps). The result shows that the primer has the ability to differentiate DNA sequence female and male flower of E.guineensis, Palm oil. However, further studies with full sequence and more samples are needed to find distinctive results between female and male flower sequences as the GmG primer could be used to design a specific marker or primer to detect the presence of female or male flower within a tree.
The color detection of two cucumber cultivars by NIR Spectroscopy KUSUMIYATI, KUSUMIYATI; KURNIASARI, INDAH; OKTAVIA, ADE RISTI
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010202

Abstract

Kusumiyati, Kurniasari I, Oktavia AR. 2017. The color detection of two cucumber cultivars by NIR Spectroscopy. Asian J Agric 1: 59-65. The color of cucumber fruit can be estimated as fruit quality trait. Genotypes and cultivars affect the color of cucumber fruit. The estimation can be done quickly and without tissue damage by NIR Spectroscopy. The purpose of this study was to determine the accuracy of color quality values with NIR and conventional methods. The experiment was conducted at Horticulture Laboratory, Faculty of Agriculture, Padjadjaran University in 2013. The color components observed were L, a, b, hue and chroma. The results indicated that the predicted component of cucumber color approximates values obtained from conventional methods. Based on the data obtained, the correlation coefficient (r) of color component approaches 1.00 and the standard calibration error (SEC) is low or close to 0.00.
Traditional knowledge on the use of local food crops by Togutil Ethnic in Halmahera Island, Indonesia TAMALENE, M. NASIR
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010203

Abstract

Tamalene MN. 2017. Traditional knowledge on the use of local food crops by Togutil Ethnic in Halmahera Island, Indonesia. Asian J Agric 1: 66-72. Food crop is an important component in the life system of Togutil ethnic group in Halmahera Island. The main characteristic of the ethnic is their nomadic life despite the existence of some sedentary groups. Generally, the ethnic consumes wild food plants growing in their natural ecosystem. This paper presents selected result of food crop studies conducted in Halmahera Island Indonesia. The botanical supply of food crops of the ethnic has high usefulness in their social and cultural activities. Data was collected through in-depth interview method to key informants chosen based on purposive sampling. Plant species was identified in the Laboratory of Herbarium Botany Bogoriense of the Biological Research Center of Indonesian Institute of Science (LIPI). 48 species of 23 families of food crops are used by Togutil tribe of Halmahera Island Indonesia. The food crops identified were wild plants of 45.83% growing in bushes habitat and primary forest and cultivated crops of 56.25% planted in the garden and yard. Other uses of the food crops were as medicinal plant of 64.28%, house building of 29.17%, and handicraft and adhesive for animal of 4.17%. In the cultural aspect, food crops were used for hunting ritual, medium of exchange (barter), welcoming guest ritual and traditional ritual. The value of Cultural Food Significance Index (CFSI) in very high significance category was 64.58%, high significance was 27.08%, and low significance and very low significance are 4.16%.
Insecticidal selectivity of jayanti plant (Sesbania sesban) for integrated control of diamondback moth (Plutella xylostella) SURIPTO, SURIPTO; SUKIMAN, SUKIMAN; GUNAWAN, ERIN RYANTIN
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010205

Abstract

Suripto, Sukiman, Gunawan ER. 2017. Insecticidal selectivity of jayanti plant (Sesbania sesban) for integrated control of diamondback moth (Plutella xylostella). Asian J Agric 1: 80-84. It has been known previously that leaves of the jayanti plant (Sesbania sesban (L.) Merr.) containing insecticidal ingredients. This study aimed to evaluate the insecticidal selectivity of various extract fractions of S. sesban leaf for the integrated control of cabbage pest, the diamondback moths (Plutella xylostella). Dried leaf powders from S. sesban were extracted in stages by using hexane, dichloromethane (DCM), ethanol, and water, successively. Each of insecticidal performance of S. sesban leaf extract fractions was tested against two types of test insects, namely P. xylostella larvae as target and Diadegma semiclausum imago as non target insects according to completely randomized design in the cabbage plantation at the village of Sembalun, East Lombok, Indonesia. Each mortality data of P. xylostella larvae and D. semiclausum imago processed by probit analysis to determine the concentration of the death of 50% of test insects (LC50) of each test extract. The results showed that the LC50 of S. sesban leaf extracts classified into four fractions, namely hexane, DCM, and water extract fractions to P. xylostella larvae successively was 343.71, 294.78, 29.95, and 1197.13 ppm, and to D. semiclausum imago row was 305.5, 121.56, 37.38, and 1043.70 ppm. The results showed that the insecticidal activity of S. sesban leaf ethanol extract fraction was selective, because its selectivity value is 1.25. On the other hand each insecticidal performance of three S. sesban leaf extracts, i.e. hexane, DCM, and water extract fractions, respectively is not selective, with the selectivity values are 0.89, 0.41, and 0.87.
Genetic engineering of sweet potatoes (Ipomoea batatas) using isopentenyl transferase gene for enhanced drought tolerance NAWIRI, SYLVIA OBINDA; ODUOR, RICHARD OKOTH; JALEMBA, ALLAN MGUTU
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010206

Abstract

Nawiri SO, Oduor RO, Jalemba AM. 2017. Genetic engineering of sweet potatoes (Ipomoea batatas) using isopentenyl transferase gene for enhanced drought tolerance. Asian J Agric 1: 85-99. Approximately 70% of yield crop reduction worldwide is caused by drought. Due to severe drought which happened many times as a result of climate change, substantial yield deprivation is usual among the major cereals such as maize, wheat, and barley.. Therefore, drought tolerant crops that still yield amidst erratic climatic phenomenon are greatly needed. Due to its capability to produce high yield in a short period, sweet potato is suitable for cultivation in regions with limited or erratic rain water supply where other food crops cannot grow easily. Nevertheless, its sensitivity to water deficit may lead to the adverse crop growth and yield. By conventional hybridization method, sweet potato is tried to be improved, but it gives unsatisfied results due to its high male sterility, sexual incompatibility and hexaploid nature of its genome.The aim of this study, therefore, is to develop new varieties of sweet potato with improved tolerance to water-deficit stress for sustainable production of sweet potato under water-limited conditions. Three sweet potato genotypes: Jewel, Kemb36, and Ksp36 were transformed using isopentenyl transferase gene (IPT) that delays drought-induced senescence via up-regulation of cytokinin biosynthesis, under the control of a waterdeficit responsive and maturation specific promoter (PSARK). The PNOV-IPT gene construct was introduced into sweet potato to evaluate their transformability and regenerability. It is done via Agrobacterium tumefaciens strain EHA101 and the plants subsequently regenerated via somatic embryogenesis. Jewel genotype recorded the highest transformation and regeneration frequency followed by Kemb36 and KSP36. Calli were cultured on media supplemented with various mannose concentrations to evaluate the suitability of mannose as a selectable marker for sweet potato, and it was figured out that 30 g/L concentration was optimal for selection of transformed events. At the time of PCR analysis, Jewel had the highest transformation efficiency followed by Kemb36. At the time for evaluation on drought tolerance under controlled conditions, the sweet potato showed delayed senescence and greater drought tolerance under water deficit conditions in the glasshouse. These plants exhibited better growth, higher yield, higher water status maintenance, higher chlorophyll content, and thus higher photosynthetic rates under reduced water conditions in comparison to wild-type. These results, therefore, indicated that expression of isopentenyl transferase gene in sweet potato significantly improves drought tolerance. Therefore, IPT gene should be used to transform other economically important food crops to delay drought-induced senescence and enhance drought tolerance.
Evaluation of the use of vermicompost on the crop production of two varieties of Pak choi (Brassica rapa var. chinensis) and on the soil structure in Suriname ORI, LYDIA; ANSARI, ABDULLAH ADIL; RAMNARAIN, YVONNE INDRANI
Asian Journal of Agriculture Vol 1 No 02 (2017)
Publisher : Society for Indonesian Biodiversity & Universitas Mulawarman, Samarinda, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g010204

Abstract

Ramnarain YI, Ori L, Ansari AA. 2017. Evaluation of the use of vermicompost on the crop production of two varieties of Pak choi (Brassica rapa var. chinensis) and on the soil structure in Suriname. Asian J Agric 1: 73-79. The present research was carried out from January to May 2016 at the Anton de Kom University of Suriname, Paramaribo. The investigation consisted of a field and laboratory study in order to evaluate the effect of vermicompost on crop production of 2 varieties Brassica rapa var. chinensis, white and green Pak choi, nutrient availability in the soil after the use of vermicompost and nutrient value of the crop.The experiment was carried out (completely randomized design) in a greenhouse for six weeks. The treatments were vermicompost (V), cow manure (S), chemical fertilizer (K) and control (C). Plant growth parameters were recorded during the experiment (plant height and number of leaves) and after harvest (root and shoot biomass, leaf area). Nutrient analysis (Ca and Fe) of Pak choi was also conducted followed by pre and post-experiment soil analysis (pH, EC, TOC, N, P, K and C/N ratio). The results were collected and analyzed using Sigma Plot 12.0 tools. In the white Pak choi the number of leaves, root length and weight of fresh plants showed no significant differences among the four treatments using Tukeyâ??s test (Pâ?¤0.05). In the green Pak choi the number of leaves and root length showed no significant differences among the four treatments by Tukeyâ??s test (Pâ?¤0.05). Furthermore, the soil parameters (pH, OC, N) did not indicate a significant increase or decrease of the elements in the soil. P did decrease significantly and K increase in the treatments in the soil was not relevant.The evaluation of the use of vermicompost on the crop production of 2 varieties of Pak choi (Brassica rapa var. chinensis) proved that the plants treated with vermicompost had similar results as those treated with cow manure and chemical fertilizer.

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