Resumo

MORALES MENDEZ, Wilfrido I.; DUARTE ALVAREZ, Oscar Joaquín  e  BRITOS BORDON, Ubaldo T.. Loss of sugarcane industrial yield associated with postharvest milling delay. Investig. Agrar. [online]. 2010, vol.12, n.2, pp.75-78. ISSN 2305-0683.

The study was conducted at the Facultad de Ciencias Agrarias, Universidad Nacional de Asunción, Filial Caazapá, agricultural period 2009. For this study, a comparison of experimental plot of 10 varieties of sugarcane was used, in its second year of cultivation. The study included four treatments that were post-harvest storage times (0, 3, 6, and 9 days after harvest) with 10 repetitions, where each variety was considerate a repetition of the treatments under study. The objective was to determine the effect caused by the delay in milling after cutting in the agricultural and industrial yield of sugarcane. The considered variables were, pol percent, purity percent and weight of cane. The results show a gradual loss in cane weight with increasing delay of milling, up 5.27% at 9 days after cutting in relation to initial weight; the Brix degrees tends to increase with the delay in processing, reaching its maximum value (23%) at 9 days after cutting, which is equivalent to an increase of 16% compared to that observed in the first cut date (19.8%); the pol percentage gradually decreased with increasing the storage time, with 12.97% at 9 days after cutting; finally, it was observed that the delay in processing the cane decreases the percentage of purity up to 24% with 9 days delay.

Palavras-chave : Saccharum officinarum L.; delay in milling; loss,; agricultural and industrial yield..

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