Análise de crescimento da gliricídia submetida a diferentes manejos de corte

The objective was to evaluate growth responses of Gliricidia sepium under different cutting managements. The statistical design was a randomized block design with split plots. The plots consisted of four cutoff frequencies (45, 60, 75 and 90 days) and three heights residue (30, 60 and 90 cm) with four replications, and the cut off frequency comprised the major portion of the residue height of the subplot. The analysis of growth was obtained through specific leaf area, leaf area index, relative growth rate, net assimilation rate and growth rate of the culture, and also evaluated the dry mass of leaves per cutting, stem dry weight by cutting, leaf dry mass and total dry mass of stem full. The plants managed with 90 days cutoff frequency had higher specific leaf area and leaf area index, the same was observed for 90 cm waste of time. The highest growth rate cultural was 2.63 g/m2·dia obtained in the management of cutting frequency of 45 days and residue height of 90 cm. At the same management cut off was observed for the maximum relative growth rate which was 0.016 g g-1 dia-1 and higher net assimilation rate with 1.32 g/m2·dia, both rates were obtained in period of 3° to 4° cut (rainy season). For cutting management often 90 days and then observed a higher dry matter yield of leaf and stem by cutting and total. In the 90 cm height residue was higher dry matter yield of leaf and stem by cutting and total. The management of cut influences the growth and production of herbage mass of G. sepium, according to rainfall in the region.