Study on physiological changes in mango cv. Langra under the influence of GA3

Abstract

The experiment was carried out in Horticulture Garden of Bihar Agricultural College, Sabour during Rabi season with the objectives focused in this direction on the effect of GA3 application on physiological regulation of flowering and maturity in mango [Mangifera indica L.] cv. Langra. A critical analysis of data revealed that wide range of observation was observed on fruit set percentage (17.98%) was recorded with gibberellic acid @ 50 ppm within pea stage and fruit retention percentage (0.67%) and fruit drop percentage (99.01%) was recorded with gibberellic acid @ 0 ppm within stone formation stage. The other traits like yield (288.73 Kg/ plant) and length of fruit (97.47 mm) were recorded with spray of gibberellic acid @ 100 ppm respectively. The other traits like pulp weight (210.00 g), edible: non edible ratio (2.69) and Pulp and stone ratio (6.11) was recorded with gibberellic acid @ 50 ppm; however, maximum stone weight (37.95 g) and peal weight (59.91 g) was recorded at the time of 20 days before expected harvest stage.