Response of growth regulating chemicals on branching and early canopy development in mango (Mangifera indica)
Growth Regulators and Mango Canopy Development
Keywords:
Branching, Canopy development, Juvenility, Hormones, PinchingAbstract
An experiment was conducted to enhance early canopy formation and precocity in mango (Mangifera indica L.), involving treating of grafted saplings with PBZ, TIBA, 6-BAP and tip pinching for hastening bearing and induction of early branching for quick canopy formation. The results showed that plant height, stem girth, number leaves and primary laterals were found non-significant in mango Dashehari, however, maximum number of primary laterals (3.67) was noted in T8 (pinching 5 cm) and maximum chlorophyll ‘a’ (1.89 mg/100 g) and total chlorophyll content (2.26 mg/100 g) were recorded in T7 . Similarly in Amrapali, maximum number of leaves (61.00) and highest number of primary laterals/plant (5.00) were noticed under treatment T8 (pinching 5 cm removing shoot apex). In Chausa, highest number of leaves (56.68) and maximum number of primary laterals (5.00) were recorded in treatment T8 (pinching 5 cm) and minimum number of leaves/ plant (31.00) and number of primary laterals (2.00) was recorded in T2 (6-BAP 100 ppm) and T7 (PBZ1500 ppm) respectively.
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