Effect of Zinc sulphate on fruit drop, yield and quality of Kinnow mandarin
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Date
2020-09-28
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CCSHAU, Hisar
Abstract
The study entitled “Effect of zinc sulphat on fruit drop, yield and quality of Kinnow mandarin” was
conducted on nine years old ear marked plants at Experimental Orchard in Post-harvest Technology
Laboratory of the Department of Horticulture, CCS Haryana Agricultural University, Hisar during the
year 2019-20 to study the effect of Zinc sulphate on fruit drop, yield and quality of Kinnow mandarin.
The experiment comprised of three levels soil application of Zinc sulphate (50,100,150 g per plant) and
foliar application various concentration of Zinc sulphate( 0.5and 0.75%) and urea(1and1.5%). There
experiment was conducted in randomized block design. The results of the experiment indicate that the
foliar application of Zinc sulphate and Urea had a considerably affected most of the recorded
parameters.
Soil application of 150 g Zinc sulphate followed by the foliar spray of the 0.5 per cent of Zinc
sulphate along with 1 per cent urea resulted into maximum fruit retention (53%), number of fruits per
plant (533.87), size of fruits [fruit length (6.04 cm) and diameter (7.10 cm), average fruit weight (165
g), fruit yield per plant (83.87 kg), juice content (44.45%), total soluble solids (9.80%) and TSS to acid
ratio (12.09 ) in Kinnow mandarin plants. The same treatment successfully resulted in minimum June
(39.08%) and pre-harvest fruit drop (11.7%), acidity (0.81%), rag (31.89%) and peel content (22.69%)
and peel thickness (2.83 mm).