Influence of plant growth regulators and potassium nitrate on the qualitative parameters of acid lime (Citrus aurantifolia Swingle) during hasta Bahar in Northern dry zone of Karnataka

Abstract

Qualitative parameters of acid lime (Citrus aurantifolia Swingle) were found to be influenced with the different concentrations of plant growth regulators and chemical during hasta bahar. GA3 @ 50 ppm in June - Cycocel @ 1000 ppm in September - KNO3 @ 2% in October resulted in maximum titrable acidity (7.19), total soluble solids (7.25), total sugar (1.81), reducing sugars (0.87), non-reducing sugars (0.94) and minimum number of seeds (8.06). However, the maximum juice percent (49.31) and least rind thickness were found in GA3 @ 50 ppm in June - Cycocel @ 2000 ppm in September - KNO3 @ 2% in October. Similarly, the maximum ascorbic acid (30.46) and least weight of seeds per fruit (0.62) were found in GA3 @ 50 ppm in June - Cycocel @ 1500 ppm in September - KNO3 @ 2% in October and GA3 @ 50 ppm in June respectively.