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All Journal AGROEKOTEKNOLOGI JURNAL ILMU PERTANIAN Jurnal Agrotek Indonesia
Mukhtar Iskandar Pinem
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Agriculture, Biological Sciences & Forestry

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Pengaruh Zat Pengatur Tumbuh dan Bio Urin Sapi Terhadap Pertumbuhan Bibit Kakao (Theobroma cacao L.) Sri Utami; Mukhtar Iskandar Pinem; Suheriyan Syahputra
AGRIUM: Jurnal Ilmu Pertanian Vol 21, No 2 (2018)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.901 KB) | DOI: 10.30596/agrium.v21i2.1877

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh zat pengatur tumbuh IAA dan bio urin sapi terhadap pertumbuhan bibit kakao.Penelitian ini menggunakan Rancangan Acak Kelompok Faktorial dengan 2 faktor, yaitu faktor pemberian Zat Pengatur Tumbuh IAA (A) dengan 3 taraf, yaitu A0 (Tanpa perlakuan), A1 (1 g/liter air) dan  A2 (2 g/liter air). Faktor kedua yaitu faktor pemberian Bio urin Sapi (S) dengan 3 taraf, yaitu S0 (Tanpa perlakuan), S1 (100 ml/liter air/polybag) dan S2 (200 ml/liter air/polybag).Terdapat 9 kombinasi perlakuan dengan 3 ulangan. Parameter yang diukur adalah tinggi tanaman (cm), jumlah daun (helai), luas daun (cm2), diameter batang (cm). Hasil penelitian menunjukan bahwa pemberian Zat Pengatur Tumbuh IAA memberikan pengaruh yang nyata terhadap parameter luas daun.Perlakuan terbaik pemberian ZPT IAA adalah 2 g/l air.Pemberian Bio Urin Sapi memberikan pengaruh yang nyata terhadap parameter luas daun. Perlakuan terbaik pada Bio Urin Sapi adalah 200 ml/l air/polybag. Terdapat  interaksi dari pemberian zat pengatur tumbuh IAA dan Bio Urin Sapi terhadap diameter batang bibit kakao
UJI KETAHANAN BEBERAPA VARIETAS DAN PENGARUH JARAK TANAM TERHADAP PENYAKIT KARAT DAUN (Puccinia polysora Underw) PADA TANAMAN JAGUNG (Zea mays L.) DI DATARAN RENDAH Sukma Aditya; Hasanuddi Hasanuddi; Mukhtar Iskandar Pinem
Jurnal Agroekoteknologi Vol 1, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.818 KB) | DOI: 10.32734/jaet.v1i4.4513

Abstract

Test of resistance of some varieties and the influence of planting distance on leaf rust(Puccinia polysora Underw.) on lowland. The aim of the research was to know the resistance ofsome varieties of corn (Zea mays L.) and the influence of planting distance on leaf rust(Puccinia polysora) on lowland. The research was conducted at Tanjung Selamat village, Medan.The research used Cluster Random Design of 2 factorials with 9 treatments and 3 repetitions. Theresults of the research showed that the varieties of BISI 13 were resistant to leaf rust of corn. Theoptimal treatment of planting distance for the attack of corn leaf rust was 70 x 25 centimeters. Theappropriate treatment of varieties and planting distance for the corn leaf rust attack was on V3J3treatment (BISI 13 with the planting distance of 70 x 25 centimeters). The highest corn productionof the varieties of BISI 13 was 6.3 tons/ha. The highest corn production of the planting distancetreatment of 70 x 25 centimeters was 5.58 tons/ha. The highest corn production in the interactiontreatment of BISI 13 with the planting distance of 70 x 25 centimeters was 7.54 tons/ha.Keywords: varieties of corn, planting distance, P. polysora, leaf rust, resistant varieties
Pathogenicity of Some Entomophatogen’s Fungus (Lecanicillium lecanii, Metarhizium anisopliae, and Beauveria bassiana) to Aphis glycines on Soybean riri widariyanto; Mukhtar Iskandar Pinem; Fatimah Zahara
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.108 KB) | DOI: 10.32734/jaet.v5i1.14068

Abstract

Soybean aphids (A. glycines) are the important pests and major vector virus SMV(Soybean Mosaic Virus) on soybeans. Control techniques which performed by the used of insectisides is not effective and leaves residue on the environment. Entomophatogen’s fungus is a safe alternative control for the environment. This research isaimed to determine the effectiveness of entomopatogen’s fungus (L. lecanii, M. anisopliae, and B. bassiana) to A. glycines on soybean in the field and carried out at experimental field of Faculty of Agriculture of University of Sumatera Utara, from December 2015 until Februari 2016. It used non factorial randomized block design by treatment : Control (Fourth instar of A. glycines without treatment entomopathogen), P1 (Second instar of A. glycines + L. lecanii), P2 (Second instar of A. glycines + B. bassiana), P3 (Second instar of A. glycines + M. anisopliae), P4 (Fourth instar ofA. glycines + L. lecanii), P5 (Fourth instar of A. glycines +B. bassiana), P6 (Fourt instar of A. glycines + M. anisopliae).The results showed thatL. lecanii and M. anisopliaesignificantly effective to reduce A. glycines population with high mortality and fast death time. The highest mortality (90%) is P4 treatment whereas the lowest mortality (37,5%) at P5 treatment. The fastest death time (5 day) is P6 treatment whereasthe longest death time(6,4 day) at P5treatment.
Inventarisasi Parasitoid Larva Hama Penggulung Daun Pisang (E. Thrax L.) Di Desa Sampali Kecamatan Percut Sei Tuan Kabupaten Deli Serdang Ameilia Zuliyanti Siregar; M Hafizhan Lubis; Mukhtar Iskandar Pinem
Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech) Vol. 7 No. 2 (2022): Jurnal Agrotek Indonesia (Indonesian Journal of Agrotech)
Publisher : Faculty of Agriculture University of Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33661/jai.v7i2.6186

Abstract

Deli Serdang is the district with the highest banana production in North Sumatra. The main pest is Erionota thrax. And one of the natural enemies used for control is parasitoids. The purpose of this study was to determine the parasitoid larvae of the banana leaf rolling pest (Erionota thrax) and to calculate the level of pest attack in Sampali Village, Percut Sei Tuan District, Deli Serdang Regency and insect identification activities were carried out at the Pest and Plant Disease Laboratory, Faculty of Agriculture, University North Sumatra. The research method used a random sampling method, carried out in Sampali Village, Percut Sei Tuan District, Deli Serdang Regency. ByOtherwise, calculating pest population density and pest attack rate done. The results showed two types of parasitoids, namely Cotesia erionotae and Brachymeria lasus were idinfied. The highest population density of E. thrax in Barangan banana was 1.63, the highest population density of E. thrax in Kepok banana was 1.45. The attack rate of E. thrax on Barangan bananas reached 95%, and the attack rate of E. thrax on Kepok bananas reached 97.5%. Keywords: inventory, Erionota thrax, parasitoid, Barangan banana, Kepok banana
Co-Authors Ameilia Zuliyanti Siregar Fatimah Zahara Hasanuddi Hasanuddi M Hafizhan Lubis riri widariyanto Sri Utami Suheriyan Syahputra Sukma Aditya