Influence of spacing and foliar application of boron and calcium on fruit quality of bitter gourd grown under protected structures: Bitter gourd cultivation under protected conditions

Abhay Vikram Singh; Awani Kumar Singh; GOGRAJ SINGH JAT; Tusar Kanti Behera

doi:10.56093/ijas.v95i11.128245

Authors

Abhay Vikram Singh Ph. D. Scholar
Awani Kumar Singh Principal Scientist
GOGRAJ SINGH JAT Division of Vegetable Science ICAR-IARI,New Delhi-110012
Tusar Kanti Behera Director & Principal Scientist

https://doi.org/10.56093/ijas.v95i11.128245

Keywords:

Bitter gourd, spacing, boron, calcium, protected structures

Abstract

The experiment was planned to examine the effect of spacing and foliar application of boron and calcium on fruit quality of bitter gourd grown in net house and poly house. The variety Pusa Rasdar was found superior in respect of fruit juice (71.43 ml/500 g), DPPH (73.02 mg), chlorophyll (5.34mg), vitamin-C (74.78 mg), and carotenoid content (66.83 mg) per 100 g of fresh fruit weight under net house. Most of the quality traits were superior under net house grown crop except fruits pulp content. Application of boron @0.2% and calcium @0.6% in combination enhanced fruit juice content (61.80 and 60.83 ml/500g), DPPH (53.67 and 54.48 mg/100g), chlorophyll (6.07 and 6.24 mg/100gm), vitamin-C (70.14 and 70.09 mg/100 g) and carotenoid (36.13 and 36.96 mg/100 g) under net house condition, respectively. High dose of boron (0.4%) and low dose of calcium (0.3%) enhanced fruit pulp content (54.31 and 54.89 g/100 g), respectively under poly house condition. Among the three different spacing, wider spacing (30 × 50 cm) increased fruit juice content, DPPH, chlorophyll and carotenoid under net house and poly house conditions, respectively. Closer spacing (20 × 50 cm) increased fruit pulp and vitamin-C under net house and poly house conditions. Present study revealed that foliar application of Ca and B and plant spacing influence fruit quality parameters of bitter gourd fruits grown under net house and poly house conditions.

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Author Biographies

Abhay Vikram Singh, Ph. D. Scholar

Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi
Awani Kumar Singh, Principal Scientist

Centre for Protected Cultivation Technology, ICAR-Indian Agricultural Research Institute, New Delhi
GOGRAJ SINGH JAT, Division of Vegetable Science ICAR-IARI,New Delhi-110012

Scientist (Vegetable Science)
Tusar Kanti Behera, Director & Principal Scientist

ICAR-Indian Institute of Vegetable Research, Varanasi, Uttar Pradesh

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