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ThesisItem Open Access Response of organic manures on growth, yield, quality and shelf life of mango (Mangifera indica L.) cv. dashehari(G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2010-07) Mohit Kumar; Singh, C.P.The experiment was conducted at Horticulture Research Centre, Patherchatta, G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during the years 2007-08 and 2008-09. The experiment was conducted on 18 years old mango trees of cv. Dashehari consisting of thirteen treatments in ‘Randomized Block Design’ with three replications. The total number of trees included in the experiment was 39. All the selected trees were almost uniform in growth and vigour. The trees were given uniform cultural operations during the course of investigation. All treatments were applied on 15 December 2007 and 2008. Full dose of farm yard manure, vermicompost, poultry manure and neem cake were applied as basal. No manure was applied to the control. Maximum tree height was observed with the application of 25 kg poultry manure per tree during both the years. Tree spread, shoot length, number of fruits per tree and fruit yield per tree was maximum with the application of 75 kg vermicompost per tree during both the years. Physical characteristics like fruit weight, fruit volume, fruit length, fruit breadth, pulp weight, peel weight and stone:pulp:peel ratio of fruit was found maximum in 75 kg poultry manure per tree during both the years. Maximum TSS, titrable acidity, ascorbic acid, TSS: acid ratio and total sugars of fruits was observed with application of 75 kg vermicompost per tree during both the years. Increase in TSS, total sugars, reducing sugars, non-reducing sugars and?-Carotene contents from the day of harvest to 6 days of storage than it declined under all the treatments during both the years. The maximum TSS, titrable acidity and ascorbic acid content was recorded from the day of harvest to 8 days of storage with application of 75 kg vermicompost per tree during both the years. The maximum total sugars content, reducing sugars and non-reducing sugars content from the 2 days of storage to 8 days of storage was found maximum in 75 kg poultry manure per tree during both the years. Maximum N content of the leaves was found with application of 30 kg neem cake per tree, while, leaf P and K content were found with application of 75 kg poultry manure per tree in the year 2007-08 and 2008-09.The application of different organic manures on mango trees cv. Dashehari is useful for improving the growth characteristics, flowering characteristics, fruiting characteristics, quality characteristics and shelf life of fruits.