Influence of organic manures and fruit coatings on biochemical parameters of papaya cv. Arka Prabhat

Abstract

A study was done to determine how long papaya could be stored by using recommended dose of nitrogen supplied with the organic manures viz., FYM, Vermicompost, Neem cake and sheep manure alone and in combinations and the harvested fruits are coated with aloe gel and bee wax. Among the treatment combinations, ascorbic acid content was observed highest in plants treated with 100% recommended dose of nitrogen (RDN) with sheep manure 63.37 mg 100g -1 and coated with aloe gel 53.18 mg 100g -1 whereas minimum 37.82 mg 100g -1 in fruits of plants applied with 100% recommended dose of fertilizers(RDF) and in uncoated fruits 48.49 mg 100g -1 on 12 th day of storage. The highest total soluble solids of 12.77 o Brix recorded in fruits plants which were treated by RDN 100% sheep manure and in gel coated fruits with 12.46 o Brix whereas minimum of 10.84 o Brix in fruits of plants applied with 100% recommended dose of fertilizers(RDF) and in uncoated fruits (11.75 o Brix) on 12 th day of storage. The fruits of plants treated with vermicompost had the greatest titrable acidity 0.115%. and in fruits coated with aloe (0.097 %) and the lowest was noticed in fruits of plants supplied with complete dose of recommended inorganic fertilizersof 0.077% and in uncoated fruits 0.087% on 12 th day of storage. The total sugars of 9.03% was noticed highest in fruit plants treated by neem cake RDN100% and in gel coated fruits(8.34%) and lowest in fruits applied with 50% RDN FYM + Neem cake 50% RDN (7.72%) and in uncoated fruits7.93% on 12 th day of storage respectively.