風乾保存野草種子発芽率の周年変化 III

概要

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Change of germinability of seeds was studied for 24 native grasses and herbs of spring fruiting during two years of air-dry storage. No germination was found for the seeds of the following 4 species : Lamium album var. barbatum, Corydalis incisa, C. heterocarpa var. heterocarpa and Aquilegia adoxoides. From the first year results, the following six types of changes in germinability were found among the other 20 species : Conyza japonica-type, Clinopodlum confine-type, Erigeron bonariensis-type Medicago lupulina-type, Silene gallica var. quinquevulnera-type and Avena fatua-type. The Silene-type, which hardly germinate in the spring and summer in the first year, and attains the maximum germinability thereafter, was observed most frequently among the winter annuals. In the second year, the same pattern of change as of the first year was not shown for each species. The seeds with high germinability just after fruiting hardly germinated at the end of the experimental period.
日本生態学会の論文
1975-12-31