オープンな環境に生育するイネ科C3種とC4種のフェノロジーの差異
2000 年 50 巻 2 号 p. 93-98
詳細
2000 年 50 巻 2 号 p. 93-98
Comparison of shoot phenology between C3 and C4 grasses growing in open sites in lowland Gifu revealed contrasting phenology in xeric (or mesic) habitats. C3 species were evergreen or winter-green and flowered mainly in spring, whereas C4 species were summer-green and flowered mainly in summer and autumn. Differences in flowering times between C3 and C4 species when they attained maximum height would reduce competition between them and facilitate their cooccurrence. On the other hand, in hydric habitats, some C3 species had growing and flowering times that overlapped with those of C4 species. Thus, seasonal dominance of C3 and C4 species appears to differ between xeric and hydric habitats.
