Afriani, Siti Rakhmi
Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Pemanfaatan Limbah Organik dalam Pembuatan Bioinsektisda berbasis Bacillus thuringiensis sebagai Agens Pengendalian Hama Tanaman Caisim Brassica juncea Astuti, Dessy Tri; Damiri, Nurhayati; Pujiastuti, Yulia; Afriani, Siti Rakhmi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 2 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Astuti et al, 2018. Utilization of Organic Waste in the Making of Bacillus thuringiensis-based Bioinsecticides as Agents for Control of Caisim Brassica juncea Pests. JLSO 7(2):136-143. Bacillus thuringiensis was one of the entomopathogenic bacteria that can produces toxic crystal proteine (ᴕ-endotoksin). The use of bioinsecticide as a biological agent in pest control was one component of integrated pest control (IPM). The aimed of this reseacrh was to know the population of pests in plants and the percentage of damage to plants that exist in each treatment. The research was conducted in a vegetable garden in the Banyuasin district in November 2017 until January 2018. The research method used a randomized block design with 5 treatments and 4 blocks. The treatment was Bacillus thuringiensis KJ3R5 cultured in coconut water and rice washing water  (A), Bacillus thuringiensis LC2 cultured in coconut water and tofu wastewater (B), commercial Bacillus thuringiensis (C), inorganic insecticide (sidametrin) (D), and water as control (E). The variables observed were arthropod populations on the canopy and ground surface of choy sum (Brassica rapa var. parachinensis or Brassica chinensis var. parachinensis) plants. The results showed that 4 species of pests i.e. Pyllotreta crucifera, Spodoptera litura, Plutella xylostella, and Helula sp. Treatment with Bacillus thuringiensis LC2 (B) resulted in reduction of plant damage by 61%.
PENGARUH EKSTRAK DAUN SIRIH (PIPER BETTLE LINN.)TERHADAP EFEK SEDASI MENCIT (MUS MUSCULUS L.)DAN SUMBANGANNYA PADA PEMBELAJARAN BIOLOGI SMA Afriani, Siti Rakhmi; Riyanto, Riyanto; Madang, Kodri
Jurnal Pembelajaran Biologi: Kajian Biologi dan Pembelajarannya Vol 3, No 1 (2016)
Publisher : fkip unsri

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Abstract: This study research aims to determine the effect of extracts of betel leaf (Piper bettle Linn.) For sedation mice (Mus musculus L.). The method is used the experimental method with completely randomized design (CRD), which consists of 4 treatments and 6 replications. The treatment consisted of a negative control group (distilled water), and three groups of mice were given extracts of betel leaf with each dose of 0.5 mg / 10 gBW, 1 mg / 10 gBW, and 2 mg / 10 gBW. Data were analyzed by calculating the Diversity Analysis and continued with Test BNT. To decrease muscle power with Traction Test method, then a decreased activity and sensitivity to the environment with Fireplace Test method. Diversity analysis results indicate that the betel leaf extract significant effect on the increase in sedation mice, decreased muscle power, then a decreased activity and sensitivity to the environment with Fireplace Test method. BNT test results show that betel leaf extract dose of 0.5 mg / 10 gBW is the most effective dose in mice increases sedation. Information on the results of this study can be alternatif examples for learning and teaching material and contribution to the Learning Class XI Biology Semester II Basic Competence 3.10. Key Words:Piper bettle Linn., Sedation, Mus musculus L.