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Dormancy of Macadamia Nut Seeds (Macadamia Integrifolia) by Drying and Soaking Water Sondari, Nunung; Abdullah, Rohana; Amalia, Lia; Ulfah, Indriana; Azizah, Rifdah; Wilujeung, Sri
Jurnal Agrosci Vol 1 No 4 (2024): Vol 1 No 4 Maret 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v1i4.215

Abstract

Macadamia nut seeds are orthodox seeds that result in a dormancy period, so breaking the seed dormancy period is necessary. This study aims to determine the effect of drying and water immersion on dormancy breaking and macadamia bean seed germination and which drying and water immersion had the best impact on dormancy breaking and macadamia bean seed germination. The research was conducted in the soil laboratory and screen house of the Faculty of Agriculture, Winaya Mukti University, Tanjungsari District, Sumedang Regency, from June to November 2022. The experimental design used was a simple randomized block design (RBD) with a combination of drying and soaking seeds with nine treatment combinations. Each was repeated three times, so there were 27 experimental units. A = P 40oC + PA 45oC, B = P 45oC + PA 50oC, C = P 50oC + PA 55oC, D = P 50oC + PA 45oC, E = P 40oC + PA 50oC, F = P 45oC + PA 55oC, G = P 45oC + PA 45oC, H = P 40oC + PA 55oC, I = P 50oC + PA 50oC. The results showed that drying and soaking in water treatments at different temperatures had no significant effect on seed moisture content, seed cracking percentage, germination percentage, radicle length, and plumula length.
Moringa Leaf Powder as Environmentally Friendly Repellent Agent for Controlling the Warehouse Insect Pest for Black Soybean Grain Roosma Ria, Elly; Hidayat, Enceng; Muliani, Yenny; Komariah, Ai; Abdullah, Rohana; Masnenah, Endeh; Kantikowati, Endang
Jurnal Agrosci Vol 1 No 5 (2024): Vol 1 No 5 Mei 2024
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/agrosci.v1i5.270

Abstract

Black soybean grain (Glycine max L. Merril.) storage is susceptible to insect pests such as Callosobruchus analis (F.), which feeds on soybeans. Steroids/triterpenoids, phenolics, alkaloids, tannins, and terpenoids found in moringa leaf powder can be employed as insect repellents in black soybean grain warehouses. The purpose of this study was to ascertain how applying plant-based insecticides made from powdered moringa leaf will affect the amount of C. analis (F.) that died, the severity of the damage, and the weight loss of black soybean seeds of the Detam 4 Prida varieties. The study took place from August to October 2019 at an elevation of 878 meters above sea level in the Biology Laboratorium of the Agriculture Faculty, University of Winaya Mukti. An experimental design including five treatments and five replications was employed as the research methodology. A was not given any moringa leaf powder; B, C, D, and E each received 0.25, 0.75, and 1 grams of moringa leaf powder, fine powder, and so on. 10 pairs of C. analis (F) per jar were used in each treatment, which involved 100 g of black soybean grain. In the storage of black soybean grain, the percentage of seed damage, weight loss, the number of eggs, larvae, pupae, and images, and mortality of C. analis (F) were all impacted by 0.75 g of moringa leaf powder, according to the findings. According to this research, C. analysis, a warehouse insect pest, is effectively repelled by powdered moringa leaf (F.).
BIOCHAR, CHARACTERISTICS AND ITS EFFECTS ON SOIL PROPERTIES AND ENVIRONMENTAL MITIGATION Abdullah, Rohana
Journal of Islam and Science Vol 5 No 1 (2018)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jis.v5i1.12526

Abstract

Biochar (biological charcoal) is a charcoal product produced by heating biomass at temperatures ranging from 400oC-500oC in conditions without oxygen or minimal oxygen (pyrolysis). Biochar has the characteristic of having a high amount of aromatic carbon that is difficult to decompose by microorganisms. The use of biochar in the tropics is very beneficial for maintaining soil fertility and reducing atmospheric pollution with carbon dioxide and methane gases. Effectiveness of biochar depends on the type of biomass and temperature used at pyrolysis. Types of woody biomass produce coarser biochar, while leafy biomass, grasses produce finer biochar. Temperatures exceeding 500oC will produce more ash than biochar. Biochar has biochemical characteristics, aromatic structure and chemical content. Thus it can function to improve physical, chemical and absorbent properties. Aromatic structures are useful in slowing decomposition so that they hold carbon in the soil for long periods. Thus it can slow down the release of carbon and methane into the atmosphere.