Vol. 10, Issue 12 (2021)

Author(s):
AS Lohakare, VN Shinde, AA Tupe and TB Tambe

Abstract:
Aqueous solutions (0.1 and 0.01 mM) of PAs (Putrescine and spermine), Triacontanol 750 ppm, NAA 25 ppm, CPPU (Forchlorfenuron) 3 ppm, Salicylic acid (SA) 100 ppm, ZnSO₄ 0.5% and Boron 0.5% were sprayed onto panicles of mango (Mangifera indica L. cv. Kesar) at different stages to investigate their effects on fruit retention and yield. The result revealed that significant minimum number of days taken from flowering to fruit set (25.70) was recorded in treatment T₈ (NAA 25 ppm + SA 100 ppm + B 0.5%). However, the maximum days from flowering to fruit set (35.05) was observed in treatment T₁₉ (control). The minimum days taken from fruit set to harvest (88.95) was recorded in treatment T₇ (NAA 25 ppm + SA 100 ppm + ZnSO₄ 0.5%) while the maximum days required from fruit set to harvest (99.45 days) was observed in treatment T₁₉ (control). The maximum number of fruit set per panicle at initial stage (62.18), number of fruits retained per panicle at pea stage (39.57), number of fruits retained per panicle at maturity stage (3.89) and maximum fruit yield per tree (69.21 kg) was also found in treatment T₇ (NAA 25 ppm + SA 100 ppm + ZnSO₄ 0.5%) whereas, lowest number of fruits retention per panicle at above different stages and minimum yield per tree was recorded in treatment T₁₉ (control).