Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Total leaf area per plant in ‘Touriga Nacional’ variety vine plants grafted onto 1103 Paulsen rootstock. Bars indicate the average value (n = 5) ± standard error. Different letters indicate significant differences in group means according to Duncan’s a posteriori test. Significant effect, p-value < 0.05.
