Reproductive Strategy in White Clover (Trifolium repens L.) of Different Habitats

HORIKAWA Yoh

doi:10.14941/grass.32.235

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Other Title

異なる生育地のシロクローバにおける再生産戦略
異なる生育地のシロクローバにおける再生産戦略〔英文〕
コトナルセイイクチノシロクローバニオケルサイセイサンセンリャク

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Description

Investigations at six different habitats and a transplanting experiment were conducted in order to clarify the environmental and genetic variation of the reproductive strategy in spontaneous and cultivated white clover. Reproductive effort of seed propagative organs at different habitats was ranged widely from 38% at riverside to 5% at lawn and pasture. Thus reproductive effort was closely related to the environmental conditions of each habitat, such as the types of vegetation and defoliation regime. In the transplanting experiment, the genetic difference on reproductive effort was significant among plant groups obtained from different habitats, and it varied from a maximum of 22% at at riverside to a minimum of 5% at meadow and lawn. The relationship between habitats and transplanting experiment on reproductive effort was extremely low as compared with other characters. Therefore white clover seems to adapt itself to different environments through the plastic reproductive strategy in addition to the genetic variation.

Journal

Japanese Journal of Grassland Science

Japanese Journal of Grassland Science 32 (3), 235-242, 1986

Japanese Society of Grassland Science

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