NDLI: FOTOSSÍNTESE E ACÚMULO DE AMIDO EM CLONES DE Coffea canephora EM FUNÇÃO DE DIFERENTES PERÍODOS DE MATURAÇÃO DE FRUTOS

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FOTOSSÍNTESE E ACÚMULO DE AMIDO EM CLONES DE Coffea canephora EM FUNÇÃO DE DIFERENTES PERÍODOS DE MATURAÇÃO DE FRUTOS

Content Provider	Semantic Scholar
Author	Morais, Leandro Elias Cavatte, Paulo Cezar Medina, Eduardo Fernandez Silva, Paulo Machado E Martins, Samuel Cordeiro Vitor Júnior, Saul De Andrade Volpi, Paulo Sérgio Ronchi, Cláudio Pagotto Damatta, Fábio Murilo
Copyright Year	2011
Abstract	The successful production of robusta coffee is largely due to the use of improved cultivars, but also the progress of proper cultural practices, such as adoption of clones with different periods of fruit maturation, which greatly facilitates the harvest and improves the final quality fruit. In any case, no study has been done so far, trying to associate the variations of photosynthesis and the supply of carbohydrates, according to the pattern of fruit maturation. It was evaluated early maturing clones (clones 03 and 67), intermediate (16 and 120) and late (19 and 76) before (August) and after (September) flowering in 2009. We investigated the photosynthesis, the accumulation of starch and the reasons of allometric branches, in clones of robusta coffee, with different periods of fruit maturation. The late maturing clones, compared to the others, exhibited decreased the following parameters: net photosynthetic rate (~ 25%), leaf starch content (~ 20%), ratio of leaf mass and fruit mass (~ 33%) and the ratio of leaf area and fruit mass (~ 35%). In any case, late-maturing clones, as the fruits have a longer period of filling and maturation, the lower values of photosynthetic rate, starch content and the ratio leaf area/fruit mass can be compensated in the long time by the lower strength of the drain.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.sbicafe.ufv.br/bitstream/handle/123456789/3302/295.pdf?isAllowed=y&sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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