Vol. 10, Issue 9 (2021)

Author(s):
Dr. Suchitra Dadheech, Dr. Ramawtar Khandelwal and Dr. Ravikant Sharma

Abstract:
Aonla (Emblica officinalis Gaertn) is an important crop indigenes to Indian subcontinent which is used in alternative medicine, health food and herbal products. Nutrients and plant growth regulators play a vital role in growth, development, fruit retention, yield and quality. A field experiment was conducted on Aonla (Emblica officinalis Gaertn) at KVK farm Bhilwara, MPUAT, Udaipur. The treatment comprised Urea (0.2%), Borax (0.5%), Vermiwash (3 ml/l), NAA (20ppm), NAA (40ppm) and their combination, Urea (0.2%) + Borax (0.5%) + Vermiwash (3 ml/l) + NAA (20 ppm) and Urea (0.2 %) + Borax (0.5%) + Vermiwash (3 ml/l) + NAA (40 ppm) and water spray as control. The results revealed that spray of Urea (0.2%) + Borax (0.5%) + Vermiwash (3 ml/l) + NAA (20 ppm) was the best to increase the fruit retention followed by Urea (0.2 %) + Borax (0.5%) + Vermiwash (3 ml/l) + NAA (40 ppm) which results in the highest fruit yield. The significant differences were observed for fruit retention, yield, fruit weight, total soluble solids, total sugars and ascorbic acid among all the treatments. The shelf life also increased and found significant among all the treatments whereas, the internal fruit necrosis was significantly decreased in treated samples as compared to the control. Hence, these treatments were useful to improved nutritional quality and storage life of aonla fruit.