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Uji Efikasi Ekstrak Daun Mengkudu, Kemangi dan Jambu Biji dalam Menghambat Pertumbuhan Cendawan Colletotrichum gloeosporioides pada Buah Pepaya Sari Susanti; Riwan Kusmiadi; Sitti Nurul Aini
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 1 No 1 (2017): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Anthracnose disease is a crucial problem in the cultivation of papaya. It is caused by C.gloesporioides. one way to overcome this problem was by using natural fungicides. Some of the natural substances that have natural fungicides as their property are noni, basil, and guava. The research was conducted at the Microbiology laboratory of the Faculty of Agriculture, Fisheries, and Biology of Universitas Bangka Belitung January to April 2016. The research utilizes Randomized Analysis Complete Design with Factorial structure. The first factor are the extracts (E), consists of noni leaves (E1), basil leaves (E2), and guava leaves (E3). The second factor are the concentrations of the extract, consists of 0% (K0), 10% (k1), 20% (K2), 30% (K3), 40% (K4), 50%(K5), and 60% (K6). The data was analysed using analysis of variance at α 5%, with the used of SAS Program (Statistical Analytic System), if the effect was found significant, the data was further analysed using DMRT (Duncan Multiple Range Test). The research result showed that the extract of guava leaves at 30% concentration provided the best result in inhibiting the growth of C.gloesporioides in papaya.

Uji Analisis Tingkat Kematangan dan Metode Perendaman terhadap Aspek Fisik dan Kimia Lada Putih (Muntok White Pepper) Riwan Kusmiadi; Sitti Nurul Aini; Nurkholis Nurkholis
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 1 No 1 (2017): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v1i1.6

One of the problems an industrial pepper in Indonesia is the lower quality of production by the farmers. To overcome these problems we must have to do research to get a good technique in pepper processing and the good quality of pepper in accordance Indonesian National Standard. This research using a factorial randomized block design with three replications of two treatment factors. The first factor is physiologic mature (M) and the second factor is the soaking method (P). The research phase includes the preparation of tools and materials. Soaking pepper, cleaning the skin and stems, drying and analysis of pepper quality test. Changes observed in this research is the content of water, the level of colored pepper, and the levels of mold contamination. The result of this research shown the mature physiologically significant effect on the levels of pepper blackish in color and content of seeds lightly. Pepper levels blackish color shown on the highest passing phase that is optimum ripe 0.12% and the lower passing phase optimum ripe is 0.01%. The highest levels of seed lightly on shown at the mature phase towards optimum ripe 1.66% and the lower it show through the mature phase that is 0.71%. White pepper research results both in treatment and in the treatment of physiologically mature immersion method meet the Indonesian National Standard.

Peningkatan Kualitas Lada Putih dengan Kombinasi Lama Perendaman dan Penambahan Daun Karamunting (Melastoma malabathricum): Peningkatan Kualitas Lada Putih dengan Kombinasi Lama Perendaman dan Penambahan Daun Karamunting (Melastoma malabathricum) Yasa Putri; Riwan Kusmiadi; Sitti Nurul Aini
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 2 No 2 (2018): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v2i2.22

Pepper submersion period with addition karamunting leaf (Melastoma malabathricum) is one expected postharvest to increasing white pepper quality. This research aims to know the influence of submersion period and karamunting leaf dose and also it is interaction to white pepper quality. This research was conducted at Balunijuk village, Bangka Regency and quality testing in UPTD Hall, Certification And Quality Control, Departement of Industry and Commerce Bangka Belitung Island. This research used Randomized Completely Design with 2 factors and F-test. The first factor (P) submersion period: (P0) as control 14 days, (P1) 9 days, (P2) 7 days and (P3) 5 days and two factor add karamunting leaf doses (K): (K0) as control without add karamunting leaf dose 0 g, (K1) 1 00 g, (K2) 150 g, and (K3) 200 g. Each unit of and using 2 kg of fruit pepper. Further testing used Duncan Multiple Range Test with 95% level of confidence. The result showed submersion periods have the significant effect for foreign object, white pepper level, and atsiri oil content. 5 days submersion had the best yield on atsiri oil content (2.44%). There is no interaction between submersion periods by adding karamunting leaf to the quality of white pepper.

Karakterisasi Plasma Nutfah Kacang Tanah (Arachis hypogaea L.) Lokal Asal Bangka Berdasarkan Karakter Morfologi: Karakterisasi Plasma Nutfah Kacang Tanah (Arachis hypogaea L.) Lokal Asal Bangka Berdasarkan Karakter Morfologi Riwan Kusmiadi; Gigih Ibnu Prayoga; Fitra Apendi; Alfiansyah Alfiansyah
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 2 No 2 (2018): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v2i2.25

Groundnut production can be improved through the use of superior seeds derived from landrace germplasm. The aim of this research was to study the morphological characteristics of Bangka landrace groundnut and the relationship between landrace. This research was conducted in Experimental and Research Garden, Bangka Belitung University from March to August 2017. This research used RBD with 9 landrace accessions and 1 national variety as treatment. The 9 landraces are accession Bedeng Akeh, Lubuk kelik, Matras, Sungailiat, Arung Dalam, Belimbing, Jongkong, Air Ketimbai 1, and Air Ketimbai 2. National variety is Kancil variety. The analysis of genetic relationship was done by the UPGMA method. The result of morphological characterization shows many similarities in the character such as growth habit, number of branches, stem color, leaf color, standard petal color, pod beak, and seed color. The differences are leaflet shape, pod constriction, pod reticulation, and primary seed color. The result of relationship analysis based on morphological characterization showed 4 groups on 87% similarities. The first group consists of the accession of Belimbing, Jongkong, Air Ketimbai 2, Sungailiat, and Kancil varieties. The second group is accession Matras, Lubuk Kelik, and Bedeng Akeh. The third group is Air Ketimbai 1 and the fourth group is Arung Dalam accession.

Aplikasi Edible Coating Tepung Tapioka Dengan Oleoresin Daun Kemangi untuk Memperpanjang Umur Simpan Buah Jambu Air Cincalo (Syzygium samarangense [Blume] Merril & L.M. Perry): Aplikasi Edible Coating Tepung Tapioka Dengan Oleoresin Daun Kemangi untuk Memperpanjang Umur Simpan Buah Jambu Air Cincalo (Syzygium samarangense [Blume] Merril & L.M. Perry) Wiwik Sumanti; Riwan Kusmiadi; Rion Apriyadi
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 4 No 1 (2020): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v4i1.35

Cincalo wax apple has non-climacteric respiration activity with high water content, so that not exactly post-harvest handling will trigger fungal growth. This study aims to determine the effect of edible coating from basil leaf oleoresin and determine the best concentration to extend the storage duration of cincalo wax apple. The study used a single completely randomized design (CRD), there were 4 treatments which were the types of basil leaf oleoresin concentrations consisting of K0 (without the addition of oleoresin), K1 (0,3% oleoresin), K2 (0,6% oleoresin) and K3 (0,9% oleoresin) with 3 replications. The variables observed were weight loss, total dissolved solids, total fruit acids, vitamin C content and organoleptic index. The results showed that the treatment of basil leaf oleoresin concentration had no significant effect on the observed variables, including weight loss, total dissolved solids, total fruit acid, and vitamin C content. All treatments with the addition of oleoresin or without the addition of basil leaf oleoresin tend to have the same results on cincalo wax apple.

Respon Pertumbuhan Tanaman Pakcoy (Brassica rapa L) dengan Pemberian Teh Kompos Bulu Ayam pada Sistem Hidroponik: Respon Pertumbuhan Tanaman Pakcoy (Brassica rapa L) dengan Pemberian Teh Kompos Bulu Ayam pada Sistem Hidroponik Alfi Rianti; Riwan Kusmiadi; Rion Apriyadi
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 3 No 2 (2019): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Wick system is one of hydroponics system that uses wick asnutrient absorbing media. Chicken feather liquid compost can be used as a substitute for conventional nutrition in pakcoy plant cultivation using hydroponics. This study aims to determine the effect of chicken feather liquid compost and determine the best concentration chicken feather liquid compost on the growth of pakcoy, and to find out the potential of chicken feather liquid compost to replace conventional nutrient solutions in a hydroponic system. This study used completely randomized design (CRD), there were 6 level of treatments which were chicken feather liquid compost concentrations consisting of E0 (1000 ppm Ab-mix), E1 (900 ppm liquid compost ), E2 (800 ppm liquid compost), E3 (700 ppm of liquid compost), E4 (600 ppm of liquid compost), E5 (500 ppm of liquid compost) with 3 replications. The variables observed were plant height, leaf number, leaf color, wet weight and dry weight of plants. The results showed that the nutritional treatment of chicken feather liquid compost had a very significant effect compared to AB-mix, which showed that Ab-mix was superior to the observed variables,ncluding plant height, the number of leaves, leaf colour, wet weight and dry weight of plants. At the first and second week, pakcoy growth was still relatively similar to Ab-mix application. All treatments using compost chicken feather liquid compost could not replace AB-mix nutrient.

Produksi dan Kandungan Pb Selada (Lactuca sativa) pada Media Tailing Pasca Penambangan Timah Nyayu Siti Khodijah; Ratna Santi; Riwan Kusmiadi; Euis Asriani
Agroteknika Vol 3 No 1 (2020): Juni 2020
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/agroteknika.v3i1.70

Tailing bekas tambang timah umumnya mengandung pasir dan kuarsa yang cukup tinggi sehingga kapasitas sangga (buffer capacity) terhadap unsur-unsur hara sangat rendah. Dengan demikian diperlukan bahan pembenah (ameliorant) untuk memperbaiki kondisi tersebut dengan melakukan pengujian pemberian lima jenis pupuk. Penelitian tentang budidaya tanaman pangan dan non pangan di lahan tailing timah di Bangka seperti tanaman kehutanan, tanaman hortikultura, tanaman perkebunan dan pakan telah dilakukan. Hasil penelitian umumnya menunjukkan penambahan bahan organik dengan berbagai jenis dan mampu memperbaiki ketahanan tanaman yang ditumbuhkan pada cekaman dilahan tailing timah, tetapi belum menjelaskan keberadaan logam berat dalam jaringan tanaman tersebut. Penelitian ini dilakukan untuk mengetahui pertumbuhan dan produksi serta kandungan Pb selada yang ditumbuhkan di media tailing pasca tambang timah dengan penambahan berbagai jenis pupuk. Penelitian didesain menggunakan rancangan acak kelompok (RAK) dengan empat tingkat perlakuan jenis pupuk yang diulang sebanyak enam kali. Jenis perlakuan pupuk adalah : jenis 1 (NPK (15:15:15)), jenis 2 (kompos), jenis 3 (Kapur+NPK) dan Jenis 4 (kompos+NPK). Pertumbuhan selada menggunakan media tailing terbaik diperoleh pada perlakuan jenis 4 ( pupuk kompos yang disertai dengan pupuk NPK). Kandungan Pb pucuk selada meningkat mengikuti peningkatan pertumbuhan tanaman akibat pemupukan. Selada dengan perlakuan kompos yang disertai dengan pupuk NPK mempunyai kandungan Pb tertinggi, tetapi kandungan Pb akar tidak mengikuti kecenderungan pertumbuhan akibat pemupukan.

PENGARUH PENUNDAAN WAKTU PERENDAMAN DAN PELUKAAN MEKANIS TERHADAP KUALITAS LADA PUTIH MUNTOK Kamila Kamila; Riwan Kusmiadi; Siti Nurul Aini
JURNAL BIOINDUSTRI (JOURNAL OF BIOINDUSTRY) Jurnal Bioindustri: VOL. 1 NO. 2 (2019)
Publisher : Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/jbio.v1i2.349

The quality of Muntok white pepper can be improved through a good immersion process, with regard to several activities such as immersion time delaying and thresing. This research was conducted at experimental farm of Bangka Belitung University and quality testing in UPTD, Certification and Quality Control, Laboratorium, Departement of Industry and Commerce Bangka Belitung islands. This study used factorial completely randomized design with two factors. The first factor (A) was consisted of 4 levels of immersion time delaying: (A0) without delaying, (A1) 2 days, (A2) 4 days and (A3) 8 days. The second factor (B) was threshing, consist: (B1) without threshing, (B2) threshing. The results showed that immersion time delaying could incerase the blackish seeds levels, foreign matter levels, and mold contamination levels. Two days and four days immersion time delaying were the optimum limit to maintain a better quality of pepper in term of blackish seed levels, foreign matter levels, volatile oil levels, piperine levels, water content and light seed content. The interaction effect of threshing and immersion time delaying hads no effect on the blackish seeds levels, foreign matter levels, mold contamination levels and essential oils levels. Keywords: white pepper, immersion, delaying, threshing

The Inhibitory Potential of Botanical Fungicides Against Colletotrichum capsici the Causal Agent of Anthracnose on Chili in-Vitro Sudania Sudania; Ropalia Ropalia; Riwan Kusmiadi
CROPSAVER Vol 6, No 1 (2023)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v6i1.44219

Colletotrichum capsici infection in chilies significantly affected the yields. The use of chemical fungicides to control this pathogen has negative effects on health and the environment. The use of botanical pesticides is one alternative to control C. capsici. This study aims to determine the effect of a type of plant extract with a certain concentration to effectively inhibit the growth of the C. capsici The study used a completely randomized design (CRD) with five levels of treatment and five times replication. The treatments were no treatment/negative control, chemical fungicide (contains 70% propineb)/positive control, papaya leaf extract (20%), betel leaf extract (25%), and galangal rhizome extract (30%). Each experimental unit was repeated three times, each repetition using duplo petridishes. The results showed that the treatment had a significant effect on the inhibition of C. capsici in the PDA medium. Botanical fungicide treatment with galangal rhizome extract (30%) was able to significantly inhibit the growth of C. capsici compared to betel and papaya leaf extracts, although it was not as effective as chemical fungicides (contains propinep 70%). The inhibitory abilities of galangal rhizome extract (30%) and chemical fungicide (70% propineb) were 8,34% and 19,91%, respectively.

Pertumbuhan dan Hasil Kedelai Edamame (Glycine max (L) Merill) Terhadap Pemberian Kombinasi Legin dan Kompos di Media Tailing Pasir Pasca Tambang Timah Ardila Mughniyarti Dila; Rion Apriyadi; Riwan Kusmiadi
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Vol. 12 No. 1 (2024): Juni
Publisher : Fakultas Pertanian Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/agrivet.v12i1.9049

Post tin mining land in Bangka Belitung can still be utilized as agricultural land with the application of various soil amandment including the combination of compost and legin. The compost provide organic matter for the soil and legin provide rhizobium to maximize nitrogen fixation in the soil. Post tin mining land improved with compost and legin combination can be used potentially for the development of edamame soybean commodities which are widely known as adaptive plant on suboptimal land. The purpose of this study was to determine the type of compost, legin dose and the best combination of both compost and legin on the growth and the yield of edamame soybeans in sand tailing media. This research had been conducted in February-August 2023 at the Experimental and Research Station, Faculty of Agriculture, Fisheries and Marine, Universitas Bangka Belitung. This study used a field experimental method with a Factorial Randomized Group Design with the first factor was the dose of legin, consists of 3 treatment levels, namely: L0: No treatment (Control), L1: 10 g legin, L2: 12 g legin. The second factor was the type of compost consisting of 3 treatment levels, namely: P1: Cow dung compost, P2: rice husk compost, P3: Commercial compost. There were 9 treatment combinations that were replicated 4 times. Each experimental unit had 6 plants so that 216 plant populations were obtained and 144 plants were obtained as samples. The results showed that the dose of 12 g legin had the highest effect on edamame growth and 10 g legin treatment had the highest effect on edamame yield. Commercial compost treatment had the best effect to edamame growth, while rice husk compost had the best effect to edamame yield. The combination of rice husk compost and 10 g legin was the treatment combination that showed the best growth and yield of edamame soybean plants in sand tailing media of post tin mining. Keywords: Edamame, rice husk, compost, legin, sand tailings

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