Full Length Research Paper
Mango flowering is predominantly influenced by the biochemical constituents present in the phase for the floral stimuli at bud break stage. The state of biochemical constituents primarily determines the synchronizing of flower stimuli and earliness of flowering. The results of this experiment have clearly indicated that all the biochemical constituents in leaves and shoot at vegetative stage, flowering stage and harvesting stage were significantly influenced by location, season and varieties individually or in combination. The leaf nutrient status is the indication of the healthy status of tree vigour. The environmental variables play a key and vital role in induction of mango flowering. Experimental evidence indicates that maturity of terminal shoot and accumulation of carbohydrate in the leaves and shoot apex are in some way associated with the synthesis of the floral stimulus in mango trees. The results revealed that by the Horticultural College and Research Institute, Tamil Nadu Agricultural University, Periyakulam during the year 2010 to 2012. Field experiments were carried out to study the response of seasons in mango cultivars. The results revealed that the highest nitrogen content of leaf and shoot at vegetative stage (1.46 and 1.45%), flowering stage (1.54 and 1.52%) and harvesting stage (1.48 and 1.36%) was in cv. Neelum during Main season. The highest carbohydrate content of leaf and shoot at vegetative stage (20.40 and 20.17%), flowering stage (21.60 and 24.04%) and harvesting stage (17.95 and 19.85%) was in cv. Neelum during Main season and the highest carbohydrate/ nitrogen ratio of leaf and shoot at vegetative stage (13.93 and 13.84), flowering stage (13.95 and 16.16) and harvesting stage (12.13 and 15.17) was in cv. Neelum during main season.
Key words: Biochemical parameters, mango cultivars, season, varieties.
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