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NAFFA, A., RAGAB, S., MANSOUR, A., EL-DEEB, H. (2010). EFFECT OF POST HARVEST TREATMENT WITH CERTAIN BIOAGENIS OR ETHANOL ON DECAY OF SNAP BEAN PODS DURING STORAGE. Egyptian Journal of Agricultural Research, 88(3), 789-800. doi: 10.21608/ejar.2010.188670
AZZA M. NAFFA; SEHAM S. RAGAB; AREF S. MANSOUR; HATEM M. EL-DEEB. "EFFECT OF POST HARVEST TREATMENT WITH CERTAIN BIOAGENIS OR ETHANOL ON DECAY OF SNAP BEAN PODS DURING STORAGE". Egyptian Journal of Agricultural Research, 88, 3, 2010, 789-800. doi: 10.21608/ejar.2010.188670
NAFFA, A., RAGAB, S., MANSOUR, A., EL-DEEB, H. (2010). 'EFFECT OF POST HARVEST TREATMENT WITH CERTAIN BIOAGENIS OR ETHANOL ON DECAY OF SNAP BEAN PODS DURING STORAGE', Egyptian Journal of Agricultural Research, 88(3), pp. 789-800. doi: 10.21608/ejar.2010.188670
NAFFA, A., RAGAB, S., MANSOUR, A., EL-DEEB, H. EFFECT OF POST HARVEST TREATMENT WITH CERTAIN BIOAGENIS OR ETHANOL ON DECAY OF SNAP BEAN PODS DURING STORAGE. Egyptian Journal of Agricultural Research, 2010; 88(3): 789-800. doi: 10.21608/ejar.2010.188670

EFFECT OF POST HARVEST TREATMENT WITH CERTAIN BIOAGENIS OR ETHANOL ON DECAY OF SNAP BEAN PODS DURING STORAGE

Article 35, Volume 88, Issue 3, September 2010, Page 789-800  XML PDF (5.22 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2010.188670
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Authors
AZZA M. NAFFA1; SEHAM S. RAGAB1; AREF S. MANSOUR1; HATEM M. EL-DEEB2
1Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt.
2Plant Pathology Department National Research Center, Giza, Egypt.
Abstract
Botrytis cinerea, Sclerotinia sderdiorum and Pythium aphanidennatum are among the pathogenic fungi on snap beans during cold storage. In vitro tests showed that Trichoderma harzianum resulted in 100% inhibition of mycelia! growth in all tested pathogens followed by TrIchoderma verde and Trichoderma geode/turn compared with the controt. The effect of ethanol vapor 75% tested for different exposure intervals was assessed against of &byes cinerea 100%. In vivo trials showed that T. haafanum reduced (1.50%) disease severity with &byes dnetea followed by T germ/elm (8.95%) and T verde (12.3%), while ethanol resulted in lower effect (20.5%) compared with the control after 4 weeks storage season 2009. On the other hand, Ethanol vapor (75% / 5 min) complete inhibition with the two fungi &Temente scIeratiorum and P. aphanidermatum. Generally, bioagent gave effective control for the three pathogens. The tested post harvest treabnents prolonged the shelf life of snap beans at 22+2°C. All treatments reduced the loss in fresh weight of snap beans pods during the cold storage at 10°C for 4 weeks. On the other hand post harvest treatments increased peroxidase activity in snap bean pods. While, decreased polyglactronase activity in naturally and artificially infected with the three pathogens compared with untreated 
Keywords
Post harvest treatments, Bioagent; Ethanol, snap beans, &byes dnerea, & temente sderoldorum, Pythium aphanidermatum and Quality
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