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.
Evolution of the leaf appearance rate (LAR) during plant development. LAR decreased at the transition from vegetative stage (regression lines, dotted: y = 0·0323x + 4·53 for A, y = 0·0219x + 3·59 for B) to reproductive stage (regression lines, dashed). D1, 1 plant m−2; D2, 3 plants m−2; D3, 6 plants m−2; D4, 11 plants m−2. Thermal time was expressed in growing degree-days, with a temperature base of 10 °C.
