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Revista Facultad Nacional de Agronomía Medellín

Print version ISSN 0304-2847


MARTINEZ ACOSTA, Ana María  and  CAYON SALINAS, Daniel Gerardo. Dynamics of Growth and Development of Banana (Musa AAA Simmonds cvs. Gran Enano and Valery). Rev. Fac. Nac. Agron. Medellín [online]. 2011, vol.64, n.2, pp.6055-6064. ISSN 0304-2847.

This research was conducted in the banana zone on Urabá (Colombia), whith cvs. Gran Enano and Valery. Since planting, each three to four leaves sprouted, three plants per variety were sampled, each corresponding to a repetition. These were separated into its different organs and the total dry matter was estimated. Each cv. was analyzed on a growth curve. The dry matter accumulation on both cvs. is adjusted to the typical sigmoid curve of the plant growth. In the exponential phase, the corm was the main source of assimilates for the development; while in the lineal and senescence phase, the pseudo-stem and leaves were the reservoir organs; when the bunch is formed, such reserves were sent to this drain. In general, while the development progressed, the vegetative organs did not show any dry matter lost, only reduction in the assimilates accumulation rate; unlike the bunch that from its emission kept a high rate, leading the fruit to represent, in the harvest season, almost 50% of the total dry matter of the plant.

Keywords : Dry matter; growth analysis; photoassimilate; partitioning; source- sink relationship.

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