Effect of calcium sprays on fruit quality and shelf-life of apple (Malus × domestica)

J S Chandel; Sanjeev Sharma; Pramod Verma

doi:10.56093/ijas.v89i9.93521

Authors

J S Chandel Professor and Head, Dr Y S Parmar University of Horticulture and Forestry, Solan, Himanchal Pradesh, 173 230, India
Sanjeev Sharma MSc Scholar, Dr Y S Parmar University of Horticulture and Forestry, Solan, Himanchal Pradesh, 173 230, India
Pramod Verma 3Assistant Professor, Dr Y S Parmar University of Horticulture and Forestry, Himanchal Pradesh, Solan 173 230

https://doi.org/10.56093/ijas.v89i9.93521

Keywords:

Calcium, Fruit quality, Physiological fruit weight loss, Shelf-life, Yield

Abstract

The present investigation was carried out during 2011- 2012 in an apple orchard situated 1935 m amsl in Shimla, district in Himachal Pradesh in order to assess the effect of foliar nutrition of calcium on growth, yield, fruit quality and shelf-life of apple. Two commercial grade calcium formulation, viz. CaCl2 at 0.4, 0.5 and 0.6% and Ca(NO3)2 at 0.2, 0.4 and 0.6 % were sprayed once (75 days after full bloom), thrice (45, 60 and 75 days after full bloom) and five times (15, 30, 45, 60 and 75 days after full bloom). The experiment was laid out in randomized block design with 19 treatments (replicated thrice). Two years pooled data revealed that five sprays of 0.6% Ca(NO3)2 significantly increased annual shoot growth and leaf area, but reduced the total yield, fruit size and weight. However, results of storage studies revealed that five sprays of 0.5 and 0.6% CaCl2 significantly reduced the physiological fruit weight loss, retain higher fruit firmness, TSS and sugar contents and improve the shelf-life of fruits in ambient storage conditions.

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