Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi

Black pod rot disease (BPRD) which is caused by Phytophthora palmivora is one of the main diseases of cocoa cultivations particularly in plantations with wet climate. Black pod rot can develop rapidly under high humidity environments, particularly during rainy seasons. This disease can cause loss o...

Full description

Bibliographic Details
Main Authors:	Agung Wahyu Soesilo, Woerjono Mangoendidjojo, Witjaksono Witjaksono, Endang Soelistyowati, Surip Mawardi
Format:	Article
Language:	English
Published:	Indonesian Coffee and Cocoa Research Institute 2009-12-01
Series:	Coffee and Cocoa Research Journal
Online Access:	http://www.ccrjournal.com/index.php/ccrj/article/view/116

id	doaj-art-82637d5d7eef46888098a9ffe05050bb
recordtype	oai_dc
spelling	doaj-art-82637d5d7eef46888098a9ffe05050bb2018-09-18T09:17:57ZengIndonesian Coffee and Cocoa Research InstituteCoffee and Cocoa Research Journal0215-02122406-95742009-12-0125310.22302/iccri.jur.pelitaperkebunan.v25i3.116105Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central SulawesiAgung Wahyu Soesilo0Woerjono Mangoendidjojo1Witjaksono Witjaksono2Endang Soelistyowati3Surip Mawardi4Indonesian Coffee and Cocoa Research InstituteGadjah Mada UniversityGadjah Mada UniversityIndonesian Coffee and Cocoa Research InstituteIndonesian Coffee and Cocoa Research Institute Black pod rot disease (BPRD) which is caused by Phytophthora palmivora is one of the main diseases of cocoa cultivations particularly in plantations with wet climate. Black pod rot can develop rapidly under high humidity environments, particularly during rainy seasons. This disease can cause loss of harvest of up to 46.63% in East Java. The various control efforts attempted so far have not resulted in significant improvements. Urea, in addition to functioning as fertilizer, can also produce the ammonia gas which is believed to be able to suppress black pod rot. This research aims to determine the effectiveness of black pod rot control using the combination of lime and urea. This research was conducted from June to September 2013. The materials used in test included sterile soil, black pod rot infected cocoa, urea, and agricultural lime. Observation results showed that ammonia could form from urea. Lime can increase the speed of the formation. The ammonia gas forming from 0.06% urea and 0.3% lime can control the P. palmivora fungus inside the soil. Key words: Pod rot, P. palmivora, urea, lime, ammoniahttp://www.ccrjournal.com/index.php/ccrj/article/view/116
institution	Open Data Bank
collection	Open Access Journals
building	Directory of Open Access Journals
language	English
format	Article
author	Agung Wahyu Soesilo Woerjono Mangoendidjojo Witjaksono Witjaksono Endang Soelistyowati Surip Mawardi
spellingShingle	Agung Wahyu Soesilo Woerjono Mangoendidjojo Witjaksono Witjaksono Endang Soelistyowati Surip Mawardi Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi Coffee and Cocoa Research Journal
author_facet	Agung Wahyu Soesilo Woerjono Mangoendidjojo Witjaksono Witjaksono Endang Soelistyowati Surip Mawardi
author_sort	Agung Wahyu Soesilo
title	Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi
title_short	Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi
title_full	Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi
title_fullStr	Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi
title_full_unstemmed	Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi
title_sort	field resistance of cocoa (theobroma cacao l.) clones to cocoa pod borer infestation in central sulawesi
publisher	Indonesian Coffee and Cocoa Research Institute
series	Coffee and Cocoa Research Journal
issn	0215-0212 2406-9574
publishDate	2009-12-01
description	Black pod rot disease (BPRD) which is caused by Phytophthora palmivora is one of the main diseases of cocoa cultivations particularly in plantations with wet climate. Black pod rot can develop rapidly under high humidity environments, particularly during rainy seasons. This disease can cause loss of harvest of up to 46.63% in East Java. The various control efforts attempted so far have not resulted in significant improvements. Urea, in addition to functioning as fertilizer, can also produce the ammonia gas which is believed to be able to suppress black pod rot. This research aims to determine the effectiveness of black pod rot control using the combination of lime and urea. This research was conducted from June to September 2013. The materials used in test included sterile soil, black pod rot infected cocoa, urea, and agricultural lime. Observation results showed that ammonia could form from urea. Lime can increase the speed of the formation. The ammonia gas forming from 0.06% urea and 0.3% lime can control the P. palmivora fungus inside the soil. Key words: Pod rot, P. palmivora, urea, lime, ammonia
url	http://www.ccrjournal.com/index.php/ccrj/article/view/116
_version_	1612551480044158976

Field Resistance of Cocoa (Theobroma cacao L.) Clones to Cocoa Pod Borer Infestation in Central Sulawesi

Similar Items