Ethylene in floral malformation in mango (Mangifera indica L.) cv. Amrapali.
Pandey D., Pandey S. N., Pal R. K.
Author Affiliation: Division of Fruits and Horticultural Technology, Indian Agricultural Research Institute, New Delhi - 110 012, India.
Indian Journal of Plant Physiology 8 : 82-84
Abstract : Studies were conducted in New Delhi, India, during 1993-95 to determine the association of different types of bud and ethylene production in shoots with expression of floral malformation in mango (M. indica) cv. Amrapali. Shoots bearing simple (solitary apical) and multiple (apical and axillary buds with several protuberances at their base) buds were selected for this study. Data on the ethylene evolution from bud, stem, leaf and panicle and malformation incidence on those shoots revealed that multiple buds had a much higher proportion of malformation (67.81%, 96.42%) than the simple buds (13.68, 4.89%) in 1993 and 1994, respectively. Similarly, the malformed panicles developed from multiple buds released more ethylene content (0.0235 µl g-1 h-1) compared to normal panicles developed from simple buds (0.0160 µl g-1 h-1). Ethylene evolution was also more (0.0177 µl g-1 h-1) in multiple buds than that in simple buds (0.0143 µl g-1 h-1).