RESPONSE OF CHEMICALS ON FLOWERING FRUITING AND QUALITY OF MANGO (Mangifera indica L.) CV. MALLIKA UNDER HIGH DENSITY ORCHARDING
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Date
2017
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Birsa Agricultural University, Ranchi, Jharkhand-6
Abstract
In the present study, entitled “Response of Chemicals on Flowering,
Fruiting and Quality of Mango (Mangifera indica L.) cv. Mallika Under High Density
Orcharding” an attempts has been made to enhance the flowering, fruiting, yield and quality
attributing characters and prolonged shelf life of the Mallika cv. of mango fruits with the
application of certain chemicals.
The trial was conducted for two consecutive years (2015 and 2016) at Birsa Agricultural
University, Kanke, Ranchi. The experiment was laid out under RBD with 14 treatments
replicated thrice. The treatment comprised of KH2PO4 at 1 percent and 1.5 percent, K2HPO4
at 1 percent and 1.5 percent and all these four treatments were applied on 15th October (At
fruit bud differentiation stage) and another eight treatments were the combinations of the
above four chemicals with 1 percent KNO3 and with 1 percent Thiourea. These eight
treatments were applied on 15 January (During bud break stage). All the above twelve
treatments were applied as aqueous foliar sprays and altogether. There were two controls,
one with water spray and another was no spray.
Observations on flowering, yield and quality attributing characters such as size and
weight of fruits, pulp percentage and chemical attributes were recorded. The observations on
weight loss, spoilage loss, carotenoid content, marketability and organoleptic evaluation of
fruits during storage were also carried out at alternate days. The results obtained revealed
that plants sprayed with different chemicals had remarkable influence on fruit retention,
yield and physico-chemical characteristics of fruits. Foliar application of KH2 PO4 (1%) +
KNO3 (1%) was effective in twelve days earlier emergence of panicle whereas 05 days
earlier flowerig was noticed with the application of KH2 PO4 (1.5%) +KNO3 (1%). Yield
attributing factors suchas length, breadth, weight and number of fruits were achieved
maximum with the chemical combinations with 1 percent KNO3. Number of fruits harvested
per plant was maximum (88.54) in K2H PO4 (1.5%) + KNO3 (1%) whereas maximum
(43.57kg) yield per plant was recorded with the application of KH2 PO4 (1%) + KNO3 (1%).
In freshly harvested fruits the maximum TSS and total sugar with KH2 PO4 (1%) + KNO3
(1%), least acidity with K2H PO4 1% + Thiourea (1%) and maximum ascorbic acid with KH2
PO4 (1.5%) + KNO3 (1%) sprayed fruits were recorded. Potassium phosphate with potassium
nitrate containing chemicals were found effective in reducing PLW and spoilage loss percent
of fruits during storage and maintaining quality parameters of fruits during ambient storage
and kept the fruits under marketable condition for longer than others and secured maximum
organoleptic score on last day of storage.
Description
RESPONSE OF CHEMICALS ON FLOWERING FRUITING AND QUALITY OF MANGO (Mangifera indica L.) CV. MALLIKA UNDER HIGH DENSITY ORCHARDING
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