O SISTEMA RADICULAR DA VARIEDADE RB855536 DE CANA-DE-AÇÚCAR NO PLANTIO EM MINITOLETE E TOLETE

This work aimed to study the sugarcane root development in two different planting systems: using one bud setts and three buds setts. The experiment took place in Estacao Experimental de Paranavai, county of Paranavai-PR, Agricultural Science Sector, Federal University of Parana during the period of June 27 th 2000 until July 10 th 2001. The delineation was design as random blocks, with two ways of planting. Evaluation was performed 9 times during the 378 days cycle. The way and the depth of planting did not alter the length and diameter of the root system. In the two ways of planting it was verified that the variables specific surface and root system volume in the 00-20 cm depth were significantly higher. In the one bud setts system, it was observed a priority of root growth in length, a characteristic that can be important to drought conditions. Key-words: plant system; root; Saccharum spp.