Author(s):

JC Chandola, Satish Chand, Ranjan Srivastava, Ratna Rai, Sachin Kumar and Vijay Kumar

Abstract: The present study was carried out at Horticultural Research Centre, Patharchatta, G. B. Pant University of Agriculture and Technology Pantnagar, Uttarakhand to find out the most effective combination of potassic compounds and ethrel sprays on fruit and quality attributes of litchi cv. Rose Scented during two successive years i.e., 2013 and 2014. The experiment comprised of nine treatments viz., KNO₃ (1%), K₂HPO₄ (1%)_, KH₂PO₄ (1%), K₂H PO₄ (2%), KH₂PO₄ (2%), K₂HPO₄ (1%) + KNO₃ (1%), KH₂PO₄ (1%) + KNO₃ (1%), Ethrel (400 ppm) and water which were sprayed thrice at monthly interval from October to December. The results obtained indicate that foliar application of KNO₃ (1%) was effective for improving fruit breadth(3.82 cm), fruit weight (21.93g), fruit retention (28.33%) and significantly reduced fruit drop (45.37%), total acidity (0.33%) of fruits in litchi. On the other hand, Ethrel (400 ppm) was effective for increasing fruit length (3.93cm), early fruit harvest (10^th June and 5^th June during the years 2014 and 2015), TSS (20.70⁰B). Therefore, it could be concluded that KNO₃ (1%) and Ethrel (400 ppm) sprays can be recommended for enhancing quality and fruit characters of litchi fruits cv. Rose Scented.

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