Indian Agricultural Research Institute, New Delhi
(1) Sprays of GA (10 ppm) markedly increased the fruit set over all other treatments including control. The fruit set, however, decreased with the increase in conncentration of GA.
(2) The compound 2, 4, 5-T (5.0 ppm) also improved fruit set significantly but this compound was not as effective as GA (10 ppm).
(3) The maximum fruit size was noted in GA (40 ppm).
(4) 2,4,5-T (2 5 ppm), CIPA (50 ppm) and CIPA (75 ppm) increased total yield by 35.9, 25.7 and 21.7 per cent respectively whereas GA (40 ppm) improved total yield by only 19.8 per cent over the control.
(5) OCIPA (25 and 50 ppm) and CIPA (25 ppm) improved the fruit quality considerably compared to other treatments. Other plant regulators, however, did not adversly affect the fruit quality in phalsa.
(6) The sprays of CIPA resulted into formative effects on phalsa leaves. No such formative effects were observed in other treatments.
