| Abstrakt: |
Objective To evaluate the industrial quality of three sugarcane cultivars during the plant cycle at the supply area of "Santa Rosalía de la Chontalpa" sugarcane mill, Design/Methodology/Approach An experiment was established under a factorial design 3x3 (3 cultivars CP 72-2086, MEX 79-431 and MEX 69-290, x 3 sampling dates 330, 390 and 450 days after sowing (DAS)) on an Eutric Fluvisol soil, In each plantation, a sample of 10 stems with three replications was collected to determine the industrial quality by polarimetry, Results The industrial quality of the evaluated cultivars only differed statistically in terms of the percentage of purity, MEX 79-431 was the one that presented the lowest value for this variable, At 450 DAS, the highest value was observed for °Brix (1728), POL percentage (14,92), purity (86,44%), The values obtained in the present study for the quality of juice in the evaluated cultivars are within the range of the standard values established for Mexico, Limitations/Implications Polarimetry is still the method used by most of the sugar mills in Mexico, even if other more environmental-friendly methodologies exist, Findings/Conclusions The trend line that best fit to MEX 69-290 and MEX 79-431, for °Brix, POL and purity, was a linear polynomial and to CP 72-2086, a polynomial quadratic, Fresh stems humidity and reducing sugars showed best fit with an inverse polynomial, °Brix presented strong and positive correlation with POL (R=0,99**), and strong and negative with reducer sugars (R=-0,95**) and fresh stem humidity (R=-0,91**). [ABSTRACT FROM AUTHOR] |
