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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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Journal : AGROEKOTEKNOLOGI

 1 
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.
Co-Authors Ameilia Zuliyanti Siregar Fatimah Zahara Hasanuddi Hasanuddi M Hafizhan Lubis riri widariyanto Sri Utami Suheriyan Syahputra Sukma Aditya