Abstract
The growth and matter production were examined forReineckia carnea, an evergreen herb growing on the forest floor in a warm-temperate region. Seasonal change in the biomass of plants growing in the field was estimated from the harvested sample plants. Carbohydrate contents and respiration rates were measured for analysis of dry matter economy. Light intensity and temperature on the forest floor were periodically measured.
In mid-spring the biomass reached a maximum which was about half again its minimum value, found in autumn. Two phases, the productive phase in cooler seasons and the developmental phase in warmer seasons, were distinguished from the annual growth pattern of this plant. In cooler seasons, positive net production was found without any morphological changes, resulting in active accumulation of reserves which were mainly soluble sugars. This high net production seems to be closely related to the favorable light conditions and low respiratory losses. In warmer seasons, though new organs were developed, net production remained low or was even negative. The morphological development of this plant in these seasons depended mostly on reserves previously accumulated. This characteristic feature of annual matter economy is considered to be common to evergreen plants on the forest floor in warm regions.
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Yamamura, Y. Matter production processes ofReineckia carnea Kunth, an evergreen forest floor herb in the warm-temperate region of Japan. Bot Mag Tokyo 97, 179–191 (1984). https://doi.org/10.1007/BF02488692
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DOI: https://doi.org/10.1007/BF02488692