Variedades de cana-de-açúcar submetidas à irrigação suplementar no cerrado
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Data
2013-03-14
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Universidade Federal de Goiás
Resumo
The production chain of sugar cane has great importance in Brazilian socio-economic scenario. It contributes significantly to the gross domestic product (GDP). Is a renewable energy source, generates a currency with the export of sugar and ethanol, as well as being an activity of creating jobs. However, there is a lack of information relating different cane varieties and irrigation, especially in the Cerrado. So, you can ensure maximum productive and economic efficiency of this culture. The objective of this study was to evaluate the performance of sixteen commercial varieties of sugar cane under supplementary irrigation in the region of the Cerrado. The experiment was conducted in the region of Goianésia-GO, Brazil in an area of sugarcane irrigated, in a Clay Red Latosol, of april 2011 to may 2012. The experimental design used was randomized blocks, with 16 varieties (treatments): CTC2, CTC4, CTC9, CTC11, CTC15, CTC18, IAC87-3396, IAC91-1099, IACSP94-3046, IACSP94-2094, IACSP94-2101, IACSP95-5000, RB857515, RB92579, RB966928 and SP86-0042. It was irrigated 50% of the water crop requeriment. The irrigation were performed by Line bar sprinkler system. It was evaluated the number of tillers per meter, length of stalk, average diameter of culms, 10 stalks and technological parameters of the raw material. The results showed significant differences between varieties in relation to number of tillers per meter, length of cane, medium diameter culm, productivity and quality of production. For the 16 varieties evaluated, the most outstanding varieties in productivity, were CTC15 and IAC91-1099. The variety that was excelled in TPH was the variety CTC9. The variety CTC18 obtained results with lower productivity, TPH and number of tillers. It can be concluded that the CTC9 is a suitable material for supplementary irrigation cultivation (50%) in the region of Vale do São Patrício (Goiás State of Brazil) for presenting a high productivity and technological performance.
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CAMPOS, P. F. Variedades de cana-de-açúcar submetidas à irrigação suplementar no cerrado. 2013. 67 f. Dissertação (Mestrado Agronomia) - Universidade Federal de Goiás, Goiânia, 2013.