Mirasson, H. R. ， Faraldo, M. L. ， Fioretti, M. N. ， Miravalles, M. ， Brevedan, R. E.
2010 PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY 2010 79(卷), null(期), (183-187页)
Tillage system is an important management decision that has to be taken in the central, semiarid, temperate region of Argentina for dryland wheat production. A 2-year study was conducted on an Entic Haplustoll soil with a sandy loam texture to determine the effects of three tillage systems (conventional, vertical and no-tillage) on leaf water status and chlorophyll content. Measurements were made at the Z65 growth stage with a SPAD-502; leaf water potential measurements were simultaneously taken. There was a positive relationship between leaf water potential and leaf greenness in both years. Tillage systems were significantly different in 2007; both variables were greater (p<0.05) in the conventional than in the vertical or no-tillage system. These differences were not significant (p>0.05) in 2008.