|PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
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Index Copernicus ICV 2015: 85.95
NAAS RATING 2017: 5.38
In fruit production, the effects of flowering and fruiting, which modify source-sink relationships, cannot be overlooked and is even more true in tropical fruit production, where the flowering and fruiting phases exceed six months at the individual tree scale. More specifically, little is known about the effects of source/sink balance, and the associated changes in carbon export rate from leaves and leaf carbohydrate concentration, like the ones resulting from the presence of developing fruits, on leaf nitrogen and photosynthetic capacity within the crown of field-growing trees. The amount of carbohydrates supplied to tree fruits depends on the amount produced by leaf photosynthesis, on sink demand and on the availability of the reserve pool. Also, from the point of view of fruit quality, it is essential to understand how pre-harvest factors influence source-sink relationships involved in fruit growth. The intra-plant variation in flushing and shoot growth pattern influences the overall floriferousness of the litchi plants. The inability of shoots emerging after harvest from the fruiting terminals to bear fruits in the next spring was probably due to depletion of food reserves in the supporting tissues as a result of which the new shoots could not mature enough in time to differentiate to flower buds for the next crop. The major role of translocated assimilates from other plant parts in fulfilling the assimilate fruits in litchi where current photosynthesis contributes partially towards assimilate demand. The mango fruit size increased with increasing leaf-to-fruit ratio. In addition, to produce larger fruit at harvest on branches with the highest leaf-to-fruit ratio, changing carbohydrate supply to the fruit increased the proportion of fresh mass in the flesh to the rest of the fruit.