FIRST RECORD OF CHARCOAL DISEASE IN PEPPER AND ITS BIOLOGICAL AND CHEMICAL CONTROL

NadeemKasimHantoosh, Mohammed; Mohammed Suhail, Fares

	FIRST RECORD OF CHARCOAL DISEASE IN PEPPER AND ITS BIOLOGICAL AND CHEMICAL CONTROL
Euphrates Journal of Agriculture Science
Article 1, Volume 8, Issue 3, 2016, Pages 136-143
Authors
Mohammed NadeemKasimHantoosh; Fares Mohammed suhail
Abstract
This study was conducted at agricultural field in Baaquba-Diyala province-Iraq in the year of 2014 to study wilt and rot on the roots and stem basis of some pepper plants.The results of isolation and indentification of sample of Pepper plant revealed wilt and death symptoms showed that the disease caused by the fungus Macrophominaphaseolina. The results showed that the addition of Azotobacterchroococcum into potato dextrose agar(PDA) at 3 × 106 CFU/ml caused complet inhibition in fungal radial growth compared with zero inhibition in control( without bacteria). The pathogenic fungi inhibition percentage was 70% when addingA. chroococcumto half-petri dishes. The addition of CaSO4 in the concentration (0, 0.1, 0.2, 0.4, 0.8, 1.6) mg/ml to the nutritional environment led to inhibite pathogenic fungi in the following percentage(0, 27, 54, 72, 84, 100%) respectively.Under green hous, the addition of A. chroococcum suspension at 100 ml/pot found to be the more efficient than other treatment forgiving hieghestseed germination percentage reached(83.3%) and lowest disease severity reached(22%) compared with 31%, 74.5% respectively in control under greenhouse conditions. While the treatments of CaSO4 and biocont gave the seed germination 75, 71.7% respectively and disease severity 37.5,33.2 respectively.
Keywords
Macrophominaphaseolina; Pepper; Azotobacterchroococcum; Biocont; caso

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