H Hasanuddin

Syiah Kuala University

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Rahmat Fadhil

Syiah Kuala University

Rita Hayati

Syiah Kuala University

Ainun Marliah

Syiah Kuala University

Dewi Sartika Aryani

Malikussaleh University

Siti Hafsah

Syiah Kuala University

Rahmi Agustina

Universitas Jabal Ghafur

Gina Erida

Syiah Kuala University

Huma Bahri

University of Monastir

Zainabun

Syiah Kuala University

Julistia Bobihoe

Indonesian Agency for Agricultural Research and Development

Cooperative Institutions

Syiah Kuala University

Indonesian Agency for Agricultural Research and Development

National Research and Innovation Agency

Universitas Muhammadiyah Aceh

Universitas Islam Negeri Sumatera Utara

Ministry of Higher Education and Scientific Research

Syarif Hidayatullah State Islamic University Jakarta

University of Monastir

Abdul Wali Khan University Mardan

École Nationale d'Agriculture de Meknès

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PERUBAHAN FISIOLOGI DAN KANDUNGAN KLOROFIL SELAMA PEMASAKAN SERTA HUBUNGANNYA DENGAN VIABILITAS BENIH JARAK PAGAR (Jatropha curcas L.)

Jurnal Floratek (2012)

H Hasanuddin

The objectives of this research were to study physiological and chlorophyll changes during seed ripening and find quick parameters as indicators to determine seed physiological maturity level. A randomized completely block design with 5 treatments and 3 replications was used in this research. The treatments were (1) dark green fruit, 42 days after anthesis (DAA), (2) yellowish green fruit, 47 DAA, (3) fully green fruit, 52 DAA, (4) brownish yellow fruit, 57 DAA, and (5) dark brown fruit, 62 DAA. The results showed that jathropa seed was physiologically mature at 57 DAA with criteria: fruit color was brownish yellow, fruit skin was soft and easily hand-opened, and seed was black. These were also supported by seed dry weight, germination percentage, germination rate and first count germination. There were negative relationships between seed chlorophyll content and germination percentage, germination rate and first count germination.

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Design of pliek-u dryer using Dafa-type solar energy

IOP Conference Series Earth and Environmental Science (2023)

Rahmi Agustina Rita Hayati H Hasanuddin Rahmat Fadhil

Abstract One of the food diversification strategies of coconut commodity is to process it into Pliek U. Pliek U is a typical food of the Province of Aceh, Indonesia, which in its processing stage requires a drying process. So far, Pliek U drying process is often conducted conventionally through direct drying (sun drying), so that Pliek U produced is susceptible to dust and other dirt contamination. This research aimed to design a Pliek U dryer using Dafa type solar energy. The Dafa type solar energy dryer used a turbine ventilator with a vertical axis wind turbine equipped with two solar collectors. This turbine had a simple shape and construction and was arranged like the letter S. While the two parts of the solar collector were used to collect energy from the sun directly. In the experiment, the blank test was carried out in the time range, namely from 10.20 am to 04.50 pm in sunny weather, with an interval of 30 minutes for each temperature data recording. The empty test results of the Dafa type solar energy dryer showed that the average shelf temperature was 44.21 °C, the collector temperature was 45.64 °C, and the ambient temperature was 31.14 °C. This initial test revealed that the performance ability of the tool was very effective in maintaining temperature during the drying process, so that further tests using materials for drying Pliek U may be carried out.

Solar dryer

Dirt

10.1088/1755-1315/1183/1/012047

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Allelopathic potential of siam weed (Chromolaena odorata L.) extract for enhancing soybean productivity

IOP Conference Series Earth and Environmental Science (2021)

H Hasanuddin Siti Hafsah Gina Erida Ainun Marliah Huma Bahri

Abstract Many tropical invasive species have strong allelopathic effects. Chromolaena odorata is reported to have the best potential to act as bioherbicide against several weeds on crops. This research was conducted in May-September 2019 to evaluate the efficacy of C. odorata extract on soybean plant. This study employed Randomized Block Design (RBD) Factorial with two factors. The first factor was 4 different doses of C. odorata extracts: 0, 8, 16 and 24 tons ha −1 . The second factor was 3 different times of application: 0, 7 and 14 days after planting. Variables observed were number of pods per plant, seed weight per plant, weight of 100 seeds and dry seed yield. The findings indicated that the extract did have effect on seed weight per plant, weight of 100 seeds and yield of dry seeds. The application of extract 16-24 tons ha −1 has improved the seed weight per plant, weight of 100 seeds, and yield of dry seeds. There was no interaction between siam weed extract and time of application in all variables observed.

Chromolaena odorata

Bioherbicide

Allelopathy

Dry weight

10.1088/1755-1315/922/1/012003

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Physico-chemical characteristics of Pliek-U in Aceh

IOP Conference Series Earth and Environmental Science (2022)

Rahmi Agustina Rita Hayati H Hasanuddin Rahmat Fadhil

Abstract Indonesia is the one of the countries which has the richness of fermented food traditional such as Pliek-U. The natural coconut flesh was contain the components that physiologically beneficial. Nutritional quality from the meat coconut fruit were increased through the one of the fermentation processes for making the Pliek-U. This study was determine the proportion of content in Pliek-U whereas that was circulate in the community. The method for physico-chemical characteristics of Pliek-U was carried out in a laboratory using standard the basic formula. The results showed the percentage range of Pliek-U, it was obtained for 5.816-11.593% to the water content. Then, the fat content was found 34,628 - 38.998%, whereas the protein content was known as 29,164 - 34,658%. However, the proportion of the ash content was 3.606 - 5.264%. The results from the Pliek-U sample have been reported the highest percentage of the carbohydrate content (22.548%), while the lowest is 13.952%. Furthermore, Pliek-U was contains to free fatty acids in the range of 2,637 - 5,589. Then, Pliek-U samples that ready to be served have a pH content in the range of 4.083-5.589%. The output test the quality parameters from the physical and chemical properties in Pliek-U can be used as a reference or standard for the quality of Pliek-U which has been circulating for years in the aceh community.

Flesh

Quality standard

10.1088/1755-1315/1116/1/012067

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Application of oxyfluorfen and pendimethalin to control weeds on soybean plantation

IOP Conference Series Earth and Environmental Science (2022)

H Hasanuddin Gina Erida Siti Hafsah Ainun Marliah Yoga Agustiawan

Abstract The appearance of weeds on crops has led to the significant loss of crop yield. Therefore, chemical control with herbicides has been an important tool for rapid and efficient weed management in crops. The objective of this study was to evaluate the effect of herbicides oxyfluorfen and pendimethalin against weeds on soybean plantation. This research employed Randomized Completely Block Design (RCBD) Factorial with 2 factors. The first factor was the type of herbicides: oxyfluorfen and pendimethalin. The second factor was herbicide doses: 0, 500, 1000, 1500 and 2000 g a.i ha -1 , applied on soybean at 1 day after planting (DAP). The percentage of weed control, percentage of weed coverage, weed species, weed population, and weed dry weight were observed at 3, 5, 7 and 9 weeks after planting (WAP). The results revealed that different types and doses of herbicide applied has affected the percentage of weed control, percentage of weed coverage weed species and weed dry weight.

Pendimethalin

Dry weight

10.1088/1755-1315/951/1/012066

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