Figure 2.

Statistical analysis of pollen germination and tube growth after self- and cross-pollination in sheepgrass. (A) Time course of pollen germination after pollination. No visible differences were observed in pollen grain germination for these two types of pollination. (B) Time course of pollen tube growth. Elongation of self-pollinated pollen tubes were inhibited from 10 to 30 min, and subsequently, the pollen tube growth was gradually stopped, while a majority of tubes reached the style base at 1–2 h after cross-pollination. Values represent the means ± SD.