Corn is the main crop commodity in terms of business aspects and the use of the results as raw material for food and animal feed. In Takalar district there are several patterns of corn marketing channels. This study aims to determine the pattern of corn marketing channels and the efficiency of corn marketing using margin analysis and farmers share methods. The analysis shows that there are 2 patterns of marketing channels, the first channel (farmers - village collectors - sub-district collectors - large traders - end consumers) with a total margin of Rp. 800 / kg and farmers share 78.9%, while in the second channel pattern (farmers - village collectors - large traders - end consumers) get a total margin of Rp. 750 / kg and farmers share 80.3%. The difference in margins and farmers share in the pattern of the first channel with the second channel shows that the longer the market chain, the greater the total marketing margin and the smaller the value of farmers share. For stakeholders, the results of this research can be information material for more efficient implementation of corn marketing.
We herein report an electrochemical impedance spectroscopy study on TiO2 based solar cells in which a copper bridge was found to significantly reduce the resistance of the TiO2 solar cells. The effects of different ions in the polymer electrolyte on the resistance of the solar cells were also observed. In addition, the use of a natural polymer from the resin of Coromendelica saccharata sturt improved the performance of the solar cells, significantly increasing their efficiency and fill factor to 5.015% and 0.90, respectively.
Agricultural activities cannot be separated from indigenous knowledge (IK), which has developed and continues to be strongly maintained by Bugis–Makassar farmers in the face of rapidly developing science and technology. The objective of this study was to explore the IK practices in rice cultivation of the Bugis–Makassar farmer community, as well as the process of integrating IK and scientific knowledge into decision making. The study used a number of qualitative methodologies to gather information, including meetings, focus group discussions, in-depth interviews, and semi-structured interviews. Our results show that IK is slowly disappearing and being replaced by middle-aged people and youth, who seem to care more about modernization than assimilation. However, with the existence of Tudang Sipulung, the fading of local wisdom may be inhibited. Tudang Sipulung’s strength lies in the government’s involvement in integrating IK and scientific knowledge into formal forums and agreement. The Tudang Sipulung agreement is formally binding with constitutional sanctions applied. In order to provide optimum benefits, engaging young farmers in the understanding and preservation of indigenous and scientific knowledge is recommended to preserve local culture and transfer modern technology.
Indigenous fungi can suppress infection by pathogens and produce secondary metabolites that directly or indirectly affect plant growth. This study aimed to test indigenous fungi collected from corn plants as biological control agents and their effects on the viability and vigor of corn seeds. Purposive sampling method was used for sampling where soil samples taken from the rhizosphere zone, corn stem and leaf tissue from three locations namely Maros-South Sulawesi, Bone-South Sulawesi, Sigi-Central Sulawesi, Indonesia. Rhizospheric fungi were isolated from soil collected at the rhizosphere and rhizoplane using a serial dilution technique, while the endophytic fungi isolated from the leaves and stem tissues using surface sterilization method. The isolated fungi were cultured on a potato dextrose agar (PDA) medium. An antagonism test was performed using the dual culture method on PDA media with F. verticillioides as target pathogen. Pathogenicity test and the effect of fungi on corn seed germination was carried out using the blotter test method. Parameters observed were; necrotic symptoms on seedlings, growth potential, germination, growth rate, growth simultaneity, vigor index, germination rate, and time needed for 50% of the total germination. The effect of the isolated indigenous fungi on corn growth was carried out in-planta using seedling trays. The results of the blotter test and in-planta test were further confirmed by a physiological characteristic test. And assessing the fungi's ability to dissolve potassium, phosphate, and produce protease enzymes. A total of 89 fungal isolates were isolated and collected from various parts of the corn plant. Nineteen of the 89 fungal isolates showed inhibitory activity against F. verticillioides by ! 50% inhibition. The fungal isolates JRP 5 MRS, JRP 9 MRS, JRP 10 MRS, JRP 7 MRS, and JEDF 1B BN were selected based on the tests and showed a consistently positive effect on seed viability and vigor with a value of !90%. The isolates did not cause necrosis in corn, and had the ability to suppress the growth of pathogenic F. verticillioides by ! 50%.
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