Leaf area estimation in a sugar beet cultivar by linear models.

摘要

An indirect method of leaf area measurement for Rizor sugar beet cultivar was tested. Leaves were sampled during two growing seasons in a Randomised Complete Block Design experiment. For 2002 samplings, leaf area cm2 was linearly correlated with maximum leaf width cm using all leaf samples (r2=0.83, p<0.001) or using the means of the 8 sampling occasions (r2=0.97, p<0.001). Correlations between leaf area and leaf mid vein length cm were weaker (r2=0.75, p<0.001 and r2=0.93, p<0. 001, respectively). For 2003 samplings, the area estimated by the equations was highly correlated to the measured leaf area..