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Title: Effect of pre-harvest fruit bagging on colour, quality and bitter pit disorder in 'Royal Delicious' apple
Authors: Sharma, Ram Roshan
Sagar, Vidhya Ram
Kumar, Kuldeep
Issue Date: Jun-2014
Publisher: NISCAIR-CSIR, India
Abstract: Studies were conducted at Division of Post Harvest Technology of Indian Agricultural Research Institute, New Delhi to observe the effect of pre-harvest bagging on colour, quality and bitter pit disorder in 'Royal Delicious' apple. Bagging was done about a month before harvesting with spun-bound fabric light-yellow coloured cloth and removed 3-day before harvesting. Bagged and non-bagged fruits were stored at 2°C ± 1°C and 90% - 95% RH. Observations were recorded on colour, fruit quality at harvest and during storage. The results have shown that bagged fruits have better color development (Hunter "a" = 52) than non-bagged apples at harvest (Hunter "a" = 38), which declined slightly during storage. Similarly, at harvest, bagged fruits contained high amounts of Ca (5.38 mg/100g) but exhibited lower activity of LOX than non-bagged apples. Similarly bagged apples had better SSC and ascorbic acid contents than non-bagged fruits, and there was a decline in all recorded parameters during storage. During storage bagged fruits exhibited lower incidence of bitter pit (2.2%) than non-bagged fruits. Thus, it can be concluded that pre-harvest fruit bagging in 'Royal Delicious' is very useful as it maintains higher fruit firmness, Ca contents and better quality and lower incidence of bitter pit during storage than non-bagged fruits.
Page(s): 53-57
ISSN: 0975-2412 (Online); 0771-7706 (Print)
Appears in Collections:BVAAP Vol.22(1) [June 2014]

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