Fig. 3
From: Effect of temperature stress on the early vegetative development of Brassica oleracea L.
Effect of temperature on leaf size and thickness of two cultivars of Brassica oleracea. Leaf length (a) and width (b) were recorded every other day during 14 days on the second leaf of 30 plants. The curves are quadratic functions fit to the data. c. Mean ± SE of leaf thickness recorded with a dial indicator. Mean values within each cultivar with different letters are signifficantly different (P < 0.05)