Vol. 10, Issue 5 (2021)

Author(s):
Nissi FG, Lakshmi ML, Swami DV, Rajashekaram T, Salomi DR and Krishna UK

Abstract:
Climate change i.e. fall in temperature during flowering stage and rise during fruit development stage of Ambe bahar crop has great influence on flowering and fruiting patterns of sweet orange. As a measure to avoid fruit drop and sunburn, antitranspirants were sprayed in fortnightly intervals during the dry spell of fruit development i.e. from March 15^th to June 30^th 2019. It was recorded that, highest plant height (2.69m) was recorded in plants sprayed with liquid paraffin @ 2% whereas, highest canopy spread (3.97 m) and canopy volume (40.71 m³) were recorded in plants sprayed with kaolin @ 1%. Fruit weight (202.83g), fruit volume (224 cm³), fruit yield per tree (46.13 kg) fruit yield per ha (12.68 t/ha) were recorded highest with plants sprayed with liquid paraffin @ 1%. Highest juice percent (50.67%) was recorded with liquid paraffin @ 2% and lowest percent fruit drop (4.34%) in plants sprayed with cycocel @ 1000 ppm.