日本列島におけるオオバコPlantago asiatica L.の生態型分化

概要

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To elucidate the mode of the ecotypic differentiation of Plantago asiatica L., the phenology and growth of seedlings of the seeds collected from various sites in Japan were compared. As the result, a summer green type and an evergreen type of P. asiatica were recognized. The seedlings of the summer green type ceased their growth in a greenhouse at 20-25℃ and 9 hr day length, however, the seedlings of the evergreen type did not under the same conditions. Under the photoperiod of 16 hr light and 8 hr dark at 6±2℃, the growth of the seedlings of the summer green type was depressed more than those of the evergreen type. The summer green type of P. asiatica distributes in the summer green forest zone, the subalpine coniferous forest zone and the northern mixed conifer and deciduous broad leaved forest zone. The evergreen type of P. asiatica distributes in the evergreen broad leaved forest zone and the subtropical rain forest zone. The summer green type overwinters probably in the dormant state, whereas the evergreen type overwinters in the growing state.
日本生態学会の論文
1983-12-30