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All Journal JURNAL ILMU PERTANIAN Jurnal Penelitian Pendidikan IPA (JPPIPA) Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Bernas JASc (Journal of Agribusiness Sciences) Jurnal Pertanian Agros Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL AGROHITA Jurnal Agronomi Tanaman Tropika (JUATIKA) Agroteknika Jurnal Agrium Jurnal Agroplasma Community Development Journal: Jurnal Pengabdian Masyarakat Biofarm : Jurnal Ilmiah Pertanian Jurnal Agro Estate Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Jurnal Hasil Pengabdian Masyarakat (JURIBMAS) Ranah Research : Journal of Multidisciplinary Research and Development Jurnal Agro Estate
Ingrid Ovie Yosephine
Program Studi Budidaya Perkebunan, Institut Teknologi Sawit Indonesia
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ANALYSIS OF THE EFFECT OF AIR HUMIDITY AND CONIDIUM DENSITY ON EDAMAME LEAF RUST DISEASE (PHAKOPSORA PACHYRHIZI) IN IMMATURE OIL PALM AREAS Poppy Fitria; Guntoro; Ingrid Ovie Yosephine
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 5 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

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Abstract

Leaf rust disease caused by Phakopsora pachyrhizi is an important disease of soybean and edamame that can reduce leaf function and yield potential. This study analyzed the effect of air humidity and conidium density on the severity of edamame leaf rust disease in immature oil palm areas. The research was conducted from March to May 2026 at the Practice Garden of the Indonesian Oil Palm Institute of Technology, Percut Sei Tuan, Deli Serdang, North Sumatra. Air humidity was observed in the morning, afternoon, and evening, while trapped conidia were observed using modified spore traps. Disease severity and disease incidence were recorded every five days and analyzed using multiple linear regression with SPSS. The observations showed that disease severity increased from 6% to 93%, while disease incidence reached 100%. Classical assumption testing showed that the regression model met the assumptions of normality, multicollinearity, and heteroscedasticity. The regression model was simultaneously significant (F = 437.006; Sig. = 0.000), with an R Square value of 0.954. Partially, air humidity did not significantly affect disease severity (t = -0.333; Sig. = 0.739), whereas conidium density had a positive and significant effect (t = 26.924; Sig. = 0.000). These results indicate that conidium density was the dominant factor associated with the development of edamame leaf rust disease in the observed immature oil palm area.
Co-Authors A.A. Ketut Agung Cahyawan W Ade Kurniawan Nasution Ahmad Habibie Rambe Amanda Zulianty Annisah Fadhilah Arbiansyah Ardiansyah, Dede Armando Sahat Parulian Simarmata4 Aulia Juanda Djaingsastro Bella Yulia Brefty Meysi Afrilia F Cici Dalimunthe Dina Arfianti Saragih Dina Arfianti Saragih Disya Dania Eka Bobby Febrianto, Eka Bobby Erpands Abdi Lestari Siahaan Erwin Junaidi Lubis Fadel Muhammad Ramadhan Pardede Gamal, Syahrial Giyanto Giyanto Guntoro Hardiansyah Hardiansyah Hardy Wijaya Hari Gunawan Indah Putri Maharani Ismi Aryati Isni Hokikah Auliah Kaharuddin Kania Yustika Pakpahan Khairuman Bahar Harahap Kristiani, Judika Lubis, Abdul Rahman M Andika Rifani M. Dai Roby Nasution M. Zulhamsyah Nst M.Hasby Atthariq Sembiring Maisarah Manurung, Saroha Mariandi Rambe, Iqbal Marzuti Isra Monang Antonius Purba Muhammad Angga Fadilah Rambe Muhammad Ferza Muhammad Nurkolis Baru Bara Musdalifah Kherunnisa Nicolas Ferreira Poppy Fitria Pradana, Fery Prayitno, Habib Priyo Adinugroho Radite Tistama Rahmad Dian Rahmad Kurniawan Rani Febriani Br Trg Reza Husada, Mhd. Rina Maharany Ritna Wahyuni Roosmawati, Febriana Safar Hidayat Sakiah Sakiah Sanju Manurung Selli Aprilliyana Silalahi, Samuel Maruli Simbolon, Hasanal Fachri Satia Simon Simanjuntak Siti Hardianti Rukmana Sri Murti Tarigan Sri Wahyuna Saragih Sulthon Parinduri Tifany Zia Aznur Wahyuni, Mardiana Wan Rizky Fauzi Wan Uka Pahlawan WARDATUL HUSNA IRHAM Widya Tri Lestari Widya Tri Lestari Wildani Yoemas Brillian Tarigan Zulham Effendi