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ATRESS, A., RASHID, E. (2016). INFLUENCE OF PRE-HARVEST POTASSIUM AND SILICON FOLIAR APPLICATION ON QUALITY AND STORABILITY OF SWEET PEPPER. Egyptian Journal of Agricultural Research, 94(4), 843-858. doi: 10.21608/ejar.2016.153129
AMAL S. ATRESS; ESMAEL A. RASHID. "INFLUENCE OF PRE-HARVEST POTASSIUM AND SILICON FOLIAR APPLICATION ON QUALITY AND STORABILITY OF SWEET PEPPER". Egyptian Journal of Agricultural Research, 94, 4, 2016, 843-858. doi: 10.21608/ejar.2016.153129
ATRESS, A., RASHID, E. (2016). 'INFLUENCE OF PRE-HARVEST POTASSIUM AND SILICON FOLIAR APPLICATION ON QUALITY AND STORABILITY OF SWEET PEPPER', Egyptian Journal of Agricultural Research, 94(4), pp. 843-858. doi: 10.21608/ejar.2016.153129
ATRESS, A., RASHID, E. INFLUENCE OF PRE-HARVEST POTASSIUM AND SILICON FOLIAR APPLICATION ON QUALITY AND STORABILITY OF SWEET PEPPER. Egyptian Journal of Agricultural Research, 2016; 94(4): 843-858. doi: 10.21608/ejar.2016.153129

INFLUENCE OF PRE-HARVEST POTASSIUM AND SILICON FOLIAR APPLICATION ON QUALITY AND STORABILITY OF SWEET PEPPER

Article 6, Volume 94, Issue 4, December 2016, Page 843-858  XML PDF (657.5 K)
Document Type: Original Article
DOI: 10.21608/ejar.2016.153129
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Authors
AMAL S. ATRESS1; ESMAEL A. RASHID2
1Department of Vegetable Handling, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.
2Department of Postharvest Diseases, Plant Pathology Research Institute, Agricultural Research Center, Giza, Egypt.
Abstract
This experiment was carried out in the two successive seasons 2013/ 2014 and 2014/2015 to study the effect of the pre-harvest foliar applications of potassium silicate at concentration of 4 and 8ml/l, potassium thiosulfate at concentration of 1.5 and 3ml/l, and Harvars at concentration of 2.5 and 5ml/l on the quality and storability of sweet pepper fruits (Capsicum annuum L.) cv. Sonar. The obtained results showed that spraying sweet pepper plants with potassium silicate or potassium thiosulphate significantly improved fruit quality parameters at harvest time i.e., fruit weight, lightness and hue angle. Concerning storage experiment, the obtained results indicated that sweet pepper fruits received pre-harvest potassium silicate at a concentration of 4 ml/l effectively displayed sweet pepper fruits with glossy and vivid green appearance, maintained TSS%, and reduced the degradation of ascorbic acid content of sweet pepper fruits during storage at 8°C and 95 % RH for 21 days.
Keywords
Sweet pepper; potassium foliar applications; storage
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