Abstract:
Four exotic sugarcane varieties (GT-1, GT-7, GT-11, F-134) with a standard variety BL-4, were evaluated for their agronomic traits at National Agricultural Research Centre during 1999-2001. Morphological characters of the exotic varieties were also described. The results of the study indicated that all the varieties produced similar number of millable canes/ha during 1999-2000 and different number of millable canes during 2000-01 with similar Brix value at harvest. Stalk height was the maximum in variety GT-11 (2.30, 2.34 m), whereas, stalk diameter was the maximum in variety GT-1 (32.23 mm). Cane yield ranged from the minimum of 112.00 t/ha in variety BL-4 to the maximum of 144.4 t/ha in variety GT-11 during 1999-2000 and 118 and 148 t/ha during 2000-01, respectively. Mean leaf length, number of green leaves and width of leaf lamina/blade was different in all the varieties. These varieties were similar in leaf sheath colour and other leaf characters but differed in carriage. Shape of the dewlap and its size was different in all the varieties. Shape of ligule was similar in GT-1 and GT-11 but different from GT-7 and F-134. Ligular process or auricle was similar in GT-1 and GT-7. It was also similar in GT-11 and F0-134 but different from other two varieties. All the varieties varied in diameter and colour of the stalks, bud groove characters, width and colour of growth ring, and width of root zone. Ivory markings were present on stalks of all the varieties. All the varieties were different in bud size and shape, all having flanges.
Page(s):
70-77
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Agricultural Research, Volume: 19, Issue: 4, Year: 2006