Effect of growth regulators on fruit morphology, retention and yield of mango cv. Amrapali.
Sarkar S., Ghosh B.
Author Affiliation: Department of Fruits & Orchard Management, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, India.
Indian Agriculturist 48 : 185-188
Abstract : In a field experiment conducted on mango cv. Amrapali at the Horticultural Research Station, Mondouri, Nadia, West Bengal, India, in 2001, plant growth regulators 2,4-D, GA3, NAA and NAA-based product Planofix each having two concentrations and water spray as a control were taken and tested. All the treatments were sprayed twice, i.e., first spray at pea stage of fruit growth and second spray at marble stage of fruit growth (i.e., 20 days after first spray). Among the different treatments, 2,4-D at 10 mg/litre caused the highest fruit retention at the marble stage (50%) and at harvest (7.57%). The highest number of fruits per plant (177.33) was also found with this treatment, whereas GA3 at 30 mg/litre was found to cause the highest fruit weight (235.5 g), length (11.45 cm) and yield per plant (39.95 kg). However, the highest fruit diameter (6.86 cm) was recorded with NAA at 30 mg/litre.