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All Journal Jurnal Agrotek Lestari J-PEN Borneo : Jurnal Ilmu Pertanian PERTANIAN TROPIK International Journal of Science and Environment Jurnal KALANDRA

Siti Hardianti Wahyuni

Dosen Fakultas Pertanian Universitas Graha Nusantara Padangsidimpuan Kampus I Tor Simarsayang Padangsidimpuan

Author-ID : 3768786

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Mathematics Physics Social Sciences

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Articles

PENGARUH PEMBERIAN PUPUK NPK DAN HORMON GIBERELIN TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN SEMANGKA (Citrullus vulgaris Schard.) Meiliana Friska Friska; Rizky Amnah; Siti Hardianti Wahyuni
J-PEN Borneo : Jurnal Ilmu Pertanian Vol 5, No 1 (2022)
Publisher : FAKULTAS PERTANIAN UNIVERSITAS BORNEO TARAKAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/jpen.v5i1.2283

ABSTRACTWatermelon (Citrullus vulgaris Schard.) is a fruit plant that grows vines. One of the horticultural crops that have a relatively high selling value is watermelon, so it is widely cultivated by the community. One of the obstacles in watermelon cultivation is the decreasing level of soil fertility and the supply of organic matter in the soil (N, P and K). Nutrients N, P, and K are essential nutrients for plants and at the same time become limiting factors for plant growth. Gibberellins as a growth hormone in plants are very influential on genetic traits (genetic dwarfism), flowering, irradiation, parthenocarpy, mobilization of carbohydrates during germination and other physiological aspects. The method in this study was a factorial randomized block design with two factors and three replications. The first factor is the dose of NPK fertilizer: 20 g (N1), 30 g (N2) and 40 g (N3). The second factor is the concentration of gibberellins, namely: 0 ppm (G0), 100 ppm (G1), 200 ppm (G2), and 300 ppm (G3). The results showed that the NPK single treatment had a significant effect on the observed parameters of tendril length, fruit weight and fruit color. The single result of gibberellin hormone treatment did not show any significant difference to all observational parameters. The best treatment was found in N3 (40 g/plant) on the parameters of tendril length, fruit number and fruit weight, while the best treatment combination was N3G2 (40 g/plant and 200 ppm gibberellins) on fruit weight parameters.Key words: Gibberellin, NPK, Watermelon (Citrullus vulgaris Schard.)ABSTRAK Semangka (Citrullus vulgaris Schard.) merupakan tanaman buah yang tumbuh merambat. Salah satu tanaman hortikultura yang memiliki nilai jual relatif tinggi adalah tanaman semangka, sehingga dibudidayakan secara luas oleh masyarakat. Salah satu kendala dalam usaha budidaya semangka adalah menurunnya tingkat kesuburan tanah dan persediaan bahan organik yang ada dalam tanah. Hara N, P, dan K merupakan hara esensial bagi tanaman dan sekaligus menjadi faktor pembatas bagi pertumbuhan tanaman. Giberelin sebagai hormon tumbuh pada tanaman sangat berpengaruh pada sifat genetik (genetic dwarfism), pembungaan, penyinaran, partenokarpi, mobilisasi karbohidrat selama perkecambahan (germination) dan aspek fisiologi lainnya. Metode dalam penelitian ini adalah Rancangan Acak Kelompok Faktorial dengan dua faktor dan tiga ulangan. Faktor pertama adalah dosis pupuk NPK, yaitu: 20 g (N1), 30 g (N2) dan 40 g (N3) per tanaman. Faktor kedua adalah konsentrasi hormon giberelin, yaitu: 0 ppm (G0), 100 ppm (G1), 200 ppm (G2), dan 300 ppm (G3). Hasil penelitian menunjukkan bahwa perlakuan tunggal NPK terdapat adanya pengaruh nyata terhadap parameter pengamatan panjang sulur, bobot buah dan warna buah. Hasil tunggal perlakuan hormon giberelin tidak menunjukkan adanya beda nyata terhadap seluruh paramater pengamatan. Perlakuan terbaik terdapat pada N3 (40 g/ tanaman) pada parameter panjang sulur, jumlah buah dan bobot buah sedangkan kombinasi perlakuan terbaik terdapat pada perlakuan N3G2 (40 g/ tanaman dan 200 ppm giberelin) pada parameter bobot buahKata kunci: Hormon Giberelin, Pupuk NPK, Semangka (Citrullus vulgaris Schard.).

POTENSI Trichoderma viride DALAM MENEKAN SERANGAN Sclerotium rolfsii PADA TANAMAN KEDELAI (Glycine max L.) Si H Wahyuni
Jurnal Agrotek Lestari Vol 4, No 1 (2018): April
Publisher : Universitas Teuku Umar

Potential of Trichoderma viride to control Sclerotium rolfsii on soybean (Glycine max L.). This research aims to determine the potential of T. viride against S. rolfsii attack on soybean crop (Glycine max L.). The research was conducted in the field of Faculty of Agriculture, Graha Nusantara University Padangsidimpuan, from May to August 2017. The results showed the highest percentage disease of incidence of S. rolfsii at the highest observation of 2, 3, 4 MST (Week After Planting), from W2D0 (when planting / 75 gram /polybag) 46.77%, 61.35% and 73.29%. and the lowest was W1D4 (7 days before planting/300 gram / polybag) 1.8%, 2.3% and 3.41%. Keywords : Potential, Trichoderma viride, Sclerotium rolfsii, Soybean

Identifikasi Jamur Endofit Asal Tanaman Tebu (Saccharum officinarum L.) Dalam Menghambat Xanthomonas albilineans L. Penyebab Penyakit Vaskular Bakteri Siti Hardianti Wahyuni
Jurnal Agrotek Lestari Vol 3, No 2 (2017): Oktober
Publisher : Universitas Teuku Umar

Identification of endophytic fungi from sugarcane as biocontrol agents to control bacterial vascular (Xanthomonas albilineans) on sugarcane. This research aims to identification endophytic fungi to against X. albilineans on sugarcane. The research was conducted at Plant Disease Laboratory, Agroecotechnology Program Study, Faculty of Agriculture, University of Sumatera Utara, Medan from May to August 2013. The results showed all the endophytic fungi used (Penicillium sp.,Curvularia sp., Aspergillus sp., Fusarium sp., Cephalosporium sp.,) potential as biological agents to control bacterial vascular wilt on sugarcane. The domination endophytic fungi from sugarcane identificated Penicillium sp. and Aspergillus sp. Keywords: Sugarcane, Xanthomonas albilineans, endophytic fungi, identification

Testing the nutrient value of chicken manure in the decomposition of Trichoderma viride Siti Hardianti Wahyuni; Dini Puspita Yanti Nst
Jurnal Pertanian Tropik Vol. 5 No. 3 (2018): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Testing the macro nutrient value of chicken manure decomposed by Trichoderma viride. This study aims to determine the value of macro nutrients in chicken manure decomposed by Trichoderma viride. This research was carried out on the field of the Faculty of Agriculture, Graha Nusantara Padangsidimpuan University, from February to August 2018. The results showed that compost with the addition of decomposer Trichoderma viride which was good was 4 weeks (A4), namely organic B = 45.70%, organic C = 91.03, C / N ratio = 11, 13%, total N = 3.51%, total P = 3.41%, total K = 1.58%

Pengaruh Kombinasi Berbagai Jenis Pupuk Organik yang Didekomposisi dengan Trichoderma Viride Terhadap Intensitas Kerusakan Bonggol Tanaman Pisang Siti Hardianti Wahyuni; Dini Puspita Yanti Nst
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Pengaruh kombinasi berbagai pupuk organic yang didekomposisi dengan Trichoderma viride terhadap intensitas kerusakan bonggol tanaman pisang. Penelitian ini bertujuan untuk mengetahui kombinasi jenis bahan organik dalam menekan intensitas kerusakan bonggol tanaman pisang terhadap Fusarium oxysporum Schl. f. sp. cubense (Foc). Penelitian ini dilaksanakan di lahan Fakultas Pertanian, Universitas Graha Nusantara Padangsidimpuan, mulai Februari sampai bulan Agustus 2019. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang terdiri atas 5 perlakuan dan 4 ulangan. Perlakuan adalah kombinasi berbagai bahan organik sebagai berikut : (a) Kotoran ayam dan jerami didekomposisi oleh T. viride, (b) Kotoran sapi dan jerami didekomposisi oleh T. viride, (c) Kotoran ayam dan kotoran sapi didekomposisi oleh T. viride, (d) Kotoran sapi, kotoran ayam dan jerami didekomposisi oleh T. viride, (e) Kontrol. Hasil penelitian menunjukkan intensitas kerusakan bonggol terendah yaitu pada perlakuan SAJ (menggunakan bahan organic kotoran sapi, kotoran ayam dan jerami) sebesar 0,42 %.

Effect of immersion duration of trichoderma harzianum on local chili growth Dini Puspita Yanty; Siti Hardianti Wahyuni
Jurnal Pertanian Tropik Vol. 6 No. 3 (2019): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Effect of immersion duration of trichoderma harzianum on local chili growth the aim of this researchis to see the old soaking ability of Trichoderma harzianum mushroom on the growth of local chili.The design used was a Completely Randomized Design (CRD) consisting of 6 treatments and 4replications, namely local chili seeds soaked with a 5-minute T.harzianum suspension, local chiliseeds soaked with a 10-minute T.harzianum suspension, local chili seeds that were soaked marinatedwith T.harzianum suspension for 15 minutes, local chili seeds soaked with T.harzianum suspensionfor 20 minutes, local chili seeds soaked with T.harzianum suspension for 25 minutes, Control (withoutimmersion with trichoderma harzianum suspension. Observed parameters are the percentage of local chiligrowth, plant height and number of leaves The results showed that the application of trichoderma harzianumhad a good effect on the growth of chili plants, soaking for 25 minutes was the best soaking on localchili seeds.

Analysis Of Macro Nutrients Of Chicken Manure Decomposed Bytrichoderma Viridemushrooms With Different Storage Lengths Darmadi Erwin Harahap; Siti Hardianti Wahyuni; Muhammad Darwis; Muharram Fajrin Harahap; Mizan Maulana
International Journal of Science and Environment (IJSE) Vol. 3 No. 2 (2023): May 2023
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v3i1.60

Trichoderma spp. It is an antagonistic fungus that is very important for biodiversity control. This research was conducted at the Laboratory of the Faculty of Agriculture, Universitas Graha Nusantara Padangsidimpuan, with a height of + 480 m above sea level, in August to September 2018. This study only analyzed the nutrient content contained in the finished compost consisting of five compost treatments, namely: A0 = Chicken manure decomposed by T.viride for 0 weeks, A1 = chicken manure decomposed by T. viride for 1 week, A2 = chicken manure decomposed by T. viride for 2 weeks, A3 = chicken manure decomposed by T. viride for 3 weeks, A4 = chicken manure decomposed by T. viride for 4 weeks. Of the five compost treatments then analyzed the nutrient content which includes N, P, K Total in the Laboratory of Soil Science ANDALAS Padang West Sumatra. The results showed that based on the results of laboratory analysis it can be known that compost with the addition of good trichodermaviride decomposer is good by 4 weeks of storage (A4) i.e. organic B = 45.70 %, organic C = 91.03 , Ratio C / N = 11. 13 %, N Total = 3.51 %, P Total = 3.41 % , K Total = 1.58 %.

Aplikasi Pestisida Nabati Untuk Meningkatkan Efisiensi Biaya Produksi Pada Tanaman Kopi Di Desa Soragobung Kecamatan Sipirok Meiliana Friska; Siti Hardianti Wahyuni; Yulia Windi Tanjung; Jumaria Nasution; Surya Handayani
KALANDRA Jurnal Pengabdian Kepada Masyarakat Vol 1 No 1 (2022): Januari
Publisher : Yayasan Kajian Riset Dan Pengembangan Radisi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55266/jurnalkalandra.v1i1.104

Pestisida sintesis mempunyai efek samping yang sangat berbahaya di masa yang akan datang, baik pada kesehatan manusia, tumbuhan dan juga hewan. selain meninggalkan residu berbahaya bagi kesehatan manusia maupun hewan, juga menyebabkan resistensi dan resurgensi hama. Penggunaan pestisida nabati sangat baik digunakan karena memiliki fungsi dalam menekan populasi Organisme Pengganggu Tanaman (OPT) sampai pada level yang tidak merugikan secara ekonomis, denga demikian produksi tetap berada pada level tinggi. Desa Sarogodung merupakan sentra produksi kopi, pada tanaman kopi terdapat banyak hama yang mengurangi produksi kopi dan mengurangi penghasilan petani setempat. Melalui kegiatan pengabdian masyarakat ini dapat bermanfaat dalam penggunaan pestisida nabati sebagai pengganti pestisida sintesis untuk meningkatkan efisiensi biaya produksi tanaman kopi bagi petani kopi

Co-Authors Dini Puspita Yanti Nst Dini Puspita Yanti Nst Dini Puspita Yanty Dini Puspita Yanty Edison Purba Harahap, Darmadi Erwin Hasanuddin Hasanuddin Jumaria Nasution Meiliana Friska Mizan Maulana Muhammad Darwis Muharram Fajrin Harahap Rizky Amnah Surya Handayani Syamsul Arifin Tanjung, Yulia Windi

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