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All Journal Jurnal Natur Indonesia AGRICOLA Jurnal Perlindungan Tanaman Indonesia JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Jurnal Triton Pendidikan Melanesia : Jurnal Ilmiah Kajian Bahasa dan Sastra Cassowary Jurnal Triton Jurnal Agrotek Indonesian Journal of Community Services Cel

Eko Agus Martanto

Universitas Papua

Author-ID : 258572

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences Veterinary Other

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Intensitas Penyakit Bercak Daun Cercospora pada Kacang Tanah (Arachis hypogaea L.) di Kampung Aimasi Prafi Adirian Korwa; Eko Agus Martanto; Hayu Siwi Pribadi
Agrotek Vol 1 No 5 (2009): April
Publisher : Fakultas Pertanian Universitas Papua

Peanut economically is important because it can be used as animal food and trade materials. Cercospora leaf spot disease is the most notorious disease in Indonesian peanut plantation, because it was able reduce 50 percent of peanut production. The aim of this research was to study intensity of Cercospora leaf spot on peanut at the Aimasi village Prafi. The result showed that : 1) Averagely, disease intensity of cercospora leaf spot on peanut at the Aimasi village Prafi reached 95,7%, and 2) Cercospora infection was able to reduce the number of leaves and shoots, while the development of plant height was simultaneous with the increase of disease intensity.

Ketahanan beberapa varietas jagung (Zea mays L.) terhadap penyakit karat daun (Puccinia sorghi) di Dusun Copti Distrik Prafi Kabupaten Manokwari Rein Ruimassa; Eko Agus Martanto; Derek Kornelis Erari; Alexander Yaku
Agrotek Vol 10 No 1 (2022): Juli
Publisher : Fakultas Pertanian Universitas Papua

Common corn rust disease caused by the fungus Puccinia sorghi, causes small spots on the upper and lower surfaces of the leaves which then spread to the entire leaf surface, causing a decrease in photosynthetic yield. Losses due to this disease are 45-60%. This study aims to explore the resistance of corn varieties to rust disease. This research was arranged in a descriptive research design using 240 plants of corn. The maize varieties tested were Pertiwi 3, Betrass, Bissi 2, Bissi 18, Bima, and Prafi Merah varieties. The results showed that the intensity of disease increased continuously every week from the first appearance of 5 WAP to 11 WAP. At 11 WAP the severity of the disease was 76% Pertiwi 3, Betrass 91%, Bissi 2 82%, Bissi 18 89%, Bima 80% and Prafi Merah 92% so that all test varieties were classified as susceptible varieties. The susceptibility was triggered by the test variety's gene system which was not sufficient to inhibit the rate of development of pathogens with high virulence. In addition, weather factors with rainfall ranging between 73and 90%, adequate optimal temperatures ranging between 25.7oC and 28.8oC and heavy rains that occur continuously for 24-26 days strongly support production and sporadic distribution in the crop resulting in an increase in severity disease.

Pengaruh dosis kalium terhadap intensitas penyakit bercak daun yang disebabkan oleh Cercospora personata pada tanaman kacang tanah Neuw, Korinus; Daeng, Baso; Martanto, Eko Agus; Andriani, Liz Yanti
Agrotek Vol 11 No 2 (2023): Desember
Publisher : Fakultas Pertanian Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46549/agrotek.v11i2.358

Cercospora personata is a pathogen that causes leaf spot disease, as one of the important diseases of peanut plants, known to reduce the rate of photosynthesis to reduce plant production by up to 50%. The handling of Cercospora attacks so far is still focused on the method of spraying fungicides. Potassium fertilization is known to increase plant resistance from one of the Cercospora attacks. The right dosage to overcome Cercospora attacks needs to be studied so that the method of fertilizing potassium in peanut plants can be implemented effectively. This study was conducted in an experimental garden using 5 dosages of potassium and repeated 3 times. The composition of the treatment used is: D0 (control), D1 (2 gr of potash fertilizer per plant), D2 (4 gr of potash fertilizer per plant), D3 (6 gr of potash fertilizer per plant) and D4 (8 gr of potash fertilizer per plant). Weekly observations were made on the variables of plant height, number of leaves, number of saplings, as well as the intensity of disease attacks. The results showed that the dose of potassium had a significant effect on several components of plant growth and the intensity of disease attacks. The application of potassium as a fertilizer has a significant influence on the observation components of the number of leaves (plant age 8, 10, and 12 MST), the number of saplings at plant age 10 MST, and the intensity of leaf spot disease attacks (plant age 8, 10, and 12 MST). Plants that were not given potassium showed leaf spot disease attacks with the highest intensity compared to the other four treatments. This pattern was seen at observation ages of 8, 10, and 12 MST.

Co-Authors Adelin Tanati Adelin Tanati Adelin Tanati, Adelin Adirian Korwa Alexander Yaku Andriani, Liz Yanti Antonius Suparno Bambang Hadisutrisno Barahima Abbas Boari, Yunus Bodang, Yacob Cahterine Pentury Christanti Sumardiyono Christina Claudia N Risamasu D. Wasgito Purnomo Daeng, Baso Derek Kornelis Erari Deslan Dayan Siagian Dowansiba, Erwin Florentina Heningtyas Listyorini Haryono Semangun Hayu Siwi Pribadi Hendri Irnawan Saputro HUGO WARAMI Ihwan Tjolli Julian Kelly Kambu Jumriah Lekitoo, Marlyn N Meike M Lisangan Neuw, Korinus Rein Ruimassa Reymas M.R. Ruimassa Reymas M.R. Ruimassa Rina A. Mogea Risamasu, Claudia N Rosdiana Sari Rumayomi, Merpati C Samen Baan Samen Baan Samen Baan, Samen Sudjatno, Joko Sutiharni Tanati, Adelin Elsina Umi Yuminarti Wabdaron, Victoria WAHYUDI Yanuarius Renwarin

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