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Agronomía Colombiana

versão impressa ISSN 0120-9965


DIAZ, Andrea; CAYON, Gerardo  e  MIRA, John Jairo. Calcium metabolism and its relationship with "maturity bronzing" in banana fruits. A review. Agron. colomb. [online]. 2007, vol.25, n.2, pp.280-287. ISSN 0120-9965.

The maturity bronzing in banana fruits is a physiological disorder caused by a low calcium uptake by the plant in dry season. Several scientific reports demonstrated the close relationship of the disease with the calcium deficiencies during drought seasons. The fertilization and behavior of calcium with respect to other soil nutrients contributed to the incidence of maturity bronzing, indicated that the incidence is reduced with calcium nitrate fertilizations. The role of calcium in plants, its participation in cellular division and extension, hydric balance of cells, signalling cascade as response to an external stimulus, and its structural functions in the cellular walls and membranes are analyzed. The role of calcium in banana culture, its mobility in soil, relationship with other bases, the process of Ca assimilation through the roots, and its relationship with the incidence of maturity bonzing of fruits are discussed.

Palavras-chave : plant physiology; mineral nutrition; nutrient absorption; deficiency of mineral nutrients; fertilization.

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