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Plant Pathology Journal
Year: 2010  |  Volume: 9  |  Issue: 4  |  Page No.: 169 - 178

Improving the Performance of Faba Bean and Controlling of Chocolate Spot Disease using Bio-compounds

M.A. El-Metwally, Kh.M. Ghanem and K.M. Abd El-Hai    

Abstract: There is an urgent need to improve faba bean yield since this plant remains an important part of the human diet. So, experiments have been designed to determine the effect of some bio-compounds on faba bean growth, chemical composition and chocolate spot disease. In vitro, results revealed that Bio Zeid and Bio ARC completely inhibited the linear growth, mycelia dry weight and sporulation of Botrytis fabae. Plant oils (cumin, cornation, garlic and rocket oils) completely inhibited the sporulation only. In vivo, results (2007/2008 and 2008/2009 seasons) confirmed the positive return of the tested compounds in which, the highest increase in fresh weight was recorded with Bio ARC, while in dry weight the highest increase was recorded with rocket oil. Plant height, number of branches, pods/plant and seeds/pod increased significantly with Acadian-C plant. The weight of 100 seeds reached to the maximum with aminogreen. In addition to the general improvements in N, P, K, Zn, Fe and Mn content. Total chlorophyll reached to the maximum values when using Bio Zeid, Bio ARC, Acadian-C plant and rocket oil. Bio ARC, Bio Zeid and garlic oil revealed the most superior positive effect among other additions on total phenolic compounds. Bio ARC and Bio Zeid led to maximum reduction of chocolate spot disease severity. Bio-, organic and natural additives were found to be most effective in increasing growth, chemical composition and yield parameters of faba bean and decrease the disease severity of chocolate spot disease.

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