EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS
Galal, M., Rahhal, M., El-Argawy, E., El-Korany, A. (2021). EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS. EKB Journal Management System, 20(3), 20-31. doi: 10.21608/jaesj.2021.236659
M Galal; M. Rahhal; Eman El-Argawy; Ahmed El-Korany. "EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS". EKB Journal Management System, 20, 3, 2021, 20-31. doi: 10.21608/jaesj.2021.236659
Galal, M., Rahhal, M., El-Argawy, E., El-Korany, A. (2021). 'EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS', EKB Journal Management System, 20(3), pp. 20-31. doi: 10.21608/jaesj.2021.236659
Galal, M., Rahhal, M., El-Argawy, E., El-Korany, A. EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS. EKB Journal Management System, 2021; 20(3): 20-31. doi: 10.21608/jaesj.2021.236659

EFFICACY OF CHITOSAN AND CHITOSAN NANOPARTICLES TO CONTROL CHOCOLATE SPOT DISEASE ON FABA BEAN UNDER FIELD CONDITIONS

Journal of Agricultural and Environmental Sciences
Volume 20, Issue 3, December 2021, Page 20-31  XML PDF (268.26 K)
Document Type: Review articles
DOI: 10.21608/jaesj.2021.236659
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Authors
M Galal* 1; M. Rahhal2; Eman El-Argawy1; Ahmed El-Korany1
1Department of Plant Pathology, Faculty of Agriculture, Damanhour University
2Plant Pathology Research Institute, Agriculture Research Center (ARC), Giza.
Abstract
This study was conducted at Plant Pathology Dep., Faculty of Agriculture, Damanhour University and Etay El-Baroud Agricultural Research Station, El El-Beheira governorate during 2018 - 2019 season.  The aim of this study was to examine the efficacy of Chitosan and Chitosan nanoparticles to control chocolate spot disease caused by Botrytis fabae on faba bean (cv. Giza 40) under field conditions.  Spraying Chitosan or Chitosan NP (30, 45, 60 after sowing) significantly decreased chocolate spot disease severity to 8.7% compared to 22.3 for the untreated control which was not significantly different from the fungicide Mancozeb which exhibited 10.17% disease severity. This was accompanied with an increase in totals phenols in Chitosan NP treated plants to 4.43 mg compared to 0. 436 for the untreated control. Also, this was accompanied with an increase in polyphenol and peroxidase activity to be as high as 0.399 and 0.394 compared to 0.133 and 0.130 (absorbance/min./g f.w.), in the untreated control, respectively. Meanwhile, use of Chitosan and Chitosan NP significantly improved faba bean vegetative growth, i.e. plant height, number of pods, as well as seeds yield per plant compared to the untreated control with more superiority for Chitosan NP.  
Keywords
Botrytis fabae; faba bean; chocolat spot disease; chitosan; chitosan nanoparticle; peroxidase; polyphenol oxidase; growth characteristics
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