EFFECT OF CALCIUM, BORON AND ZINC ON GROWTH, FRUIT QUALITY AND PRODUCTION OF APPLE
Loading...
Date
2018-09
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UHF, NAUNI
Abstract
ABSTRACT
The present investigation entitled “Effect of calcium, boron and zinc on growth, fruit quality
and production of apple” was carried out on twelve-year old trees during the years 2015 and 2016 in a
private orchard at Reckong Peo (Kinnaur) (H.P.), India. The study was conducted involving three
experiments. The first experiment comprised of ten treatments viz. 0.5% recommended dose of
calcium chloride at 45 and 30 days before harvest, 0.25g/l, 0.50g/l and 0.75g/l at one, two and three
weeks after petal fall and each treatment was replicated three times. The experiment was laid out in a
Randomized Block Design. Two foliar sprays of CaCl2 @ 0.5% before 45 and 30 days of harvest
significantly affected shoot growth, leaf area, yield and fruit quality parameters. The physiological
weight loss during different storage interval was recorded to be minimum as compare to other
treatments. The fruit firmness was found to be best in treatment T8 (Foliar spray of CaCl2 @0.75g/l
one week after petal fall). The second experiment consisted of ten treatments of boron viz.
recommended dose of boron 1% at pink bud stage and one month after pink bud stage, 100g, 200g
and 300 g of boron through soil application (Fall stage, mid February and tight cluster stage). The
results revealed that fall application of boron @ 200g/tree was found to be the best treatment with
respect to fruit set, fruit retention and yield which was at par with foliar application of boron @ 0.1%
at pink bud stage. The third experiment also comprised of ten treatments of zinc EDTA viz.
recommended dose of zinc @ 0.5% during mid June, 30g, 40g and 50 g of zinc EDTA through soil
application (Fall stage, mid march and mid April). The results revealed that soil and foliar application
of zinc EDTA had a significant effect on shoot growth, fruit quality fruit firmness and yield. The
recommended practice i.e. foliar application of zinc EDTA @ 0.5% at mid June resulted in the
production of quality fruits which wasat par withfall application of zinc EDTA @ 40g/tree.
Description
Keywords
null