Fig. 1. The number of sunflowers that survived from seeds sown in different quantities (0, 50, 100, and 150 seeds) in two different-sized experimental plots (1 m × 1 m and 2 m × 2 m). Data represent the mean number of surviving individuals from four replicates. The developmental stages of sunflower plants are color-coded (yellow-green, germination; blue, growth; yellow, flowering; dark green, seed-filling).
© J Ecol Environ
