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All Journal The Journal of Experimental Life Sciences (JELS) Research Journal of Life Science Journal of Tropical Plant Protection AGRIVITA, Journal of Agricultural Science Jurnal Perlindungan Tanaman Indonesia AGROMIX Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Agro Bali: Agricultural Journal Jurnal Agrinika : Jurnal Agroteknologi dan Agribisnis Agroradix : Jurnal Ilmu Pertanian Jurnal HPT (Hama Penyakit Tumbuhan)
Mintarto Martosudiro
Departemen Hama Dan Penyakit Tumbuhan Fakultas Pertanian Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology Neuroscience

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Effect of Calcium Polysulfide Applications on Severity of Cocoa Pod Rot (Phytophthora palmivora Butl.) and Fungal Diversity Widiyasmoro, Wahyu; Martosudiro, Mintarto; Sulistyowati, Liliek
The Journal of Experimental Life Science Vol. 7 No. 2 (2017)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1305.655 KB) | DOI: 10.21776/ub.jels.2017.007.02.02

Abstract

Indonesian government gives a high priority for the development and revitalization of cocoa production. In 2012/2013, production of cocoa in Indonesia reached 410,000 ton from 1,774,500 ha (about 231 kg ha-1), lower than Ghana which is 835,000 ton from 1,600,300 ha (about 521 kg ha-1). One of the constraints of cocoa production in Indonesia is pod rot disease caused by Phytophthora palmivora, which can reduce about 90% of production during wet season. Calcium polysulfide was suggested as one of the potential, cheap and save substance to control P. palmivora. The purpose of this study was to evaluate the calcium polysulfide potential to control the disease and its effect on the phyllosphere-fungal diversity. A positive correlation was found between concentration of calcium polysulfide and inhibition of fungal growth in the media. Otherwise, a negative correlation was found between concentration of calcium polysulfide and fungal biomass. Disease severity of cocoa treated by calcium polysulfide 80 mL L-1 every week was 11.67% significantly lower than control, i.e. 68.33%. Furthermore, it was also found that the index value of fungal diversity on the phylosphere decreased by increasing concentration and interval of  calcium polysulfide application.Keywords: Calcium polysulfide, Cocoa, Phytophthora palmivora.
Co-Authors Abdul Choliq, Fery Abdul Latief Abadi Ajeng Wulandari Ali Pramono Alifa, Desy Hawania Asha Amanda Yayu Natasya Amanda Yayu Natasya Aminudin Afandhi Aminudin Afandhi Anna Sartika Hutapea Anton Muhibbudin Anton Muhibuddin Anugerah Firmansyah Zakaria Anugerah Firmansyah Zakaria Ari Kristini Aritonang, Awal Josua Athifa Lithiflika K. Yahya Aviva Aviolita Parama Putri Aviva Aviolita Parama Putri Aviolita Parama Putri Aviva Aviolita Parama Putri Aviolita Parama Putri Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Bedjo Devi Febriana Putri Devi Febriana Putri Devy Intan Arlita Devy Intan Arlita Dian Eka Kusumawati Effendi, Mokhtar Eka Putri Irma Nuviani Ernawati, Feny Esti Yuliastri Sa’idah Esti Yuliastri Sa’idah Fanhash Nijami, Muhammad Ferry Abdul Choliq Fery Abdul Choliq Fiqh Thamrotul Irsyadah Fiqh Thamrotul Irsyadah Firdausi, Wita Hagus Tarno Haniatur Rochifah Hasanah, Ifa Maulidah Hesty Maranticha I Ketut Suada istiqomah istiqomah Istiqomah, Istiqomah Jayanti Elok Cayah Ambarwati Jayanti Elok Cayah Ambarwati Kamila Qurota A’yun Kamila Qurota A’yun Kestrilia Rega Prilianti Liliek Sulistyowati Lilik Koesmihartono Putra Lilik Nur Kholidah Lilik Nur Kholidah Lilya Echa Febriyanti Luqman Qurata Aini Luqman Qurota Aini M. Guruh Arif Zulfahmi M. Guruh Arif Zulfahmi Mahfud, Muhammad Afif Miko Putro Hutomo Miko Putro Hutomo Muhamad Ihsal Mahendra Nadia Agung Triwibawa Nadia Agung Triwibawa Nofia, Nita Prabowo, Matheus Randy Qurrota Ayuni Apriliana Rahayu, Esti Dwi Rasyada, Nuris Sa’adah Rois Hanadyo Rois Hanadyo Roswita Nur Kumalasari Rosyida, Risya Safira Candra Jalaweni Safitri, Helvira Agita Saidi, Aluna Uthilma Salsabilla, Alyara Oktavia Samsul Huda Asrori Sinta Asa Karsalina Sofyaningrum, Alaida Nur Laili Sunarto, Bintar Probo Syamsuddin Djauhari Tashya Angelique Martinez Tutung Hadi Astono Tutung Hadiastono Tutung Hadiastono Tutung Hadiastono Tutung Hadiastono Ulil Azmi Uswatun Hasanah Uswatun Hasanah Vivi Tri Kristyaningrum Widiyasmoro, Wahyu Yayang Cahyaning Bulan Yayang Cahyaning Bulan Yayuk Yuliati Yugista, Serdinia Zulverdi, Yudhika Ankenkuala Ramadhana Zulverdi, Yudhika Tsabitah Ramacendani