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Publication Type J
Authors Min, B. M.
Title Shoot growth and distribution pattern of Carex kobomugi in a natural stand
Source Journal of Plant Biology
Abstract To clarify the growth and distribution of Carex kobomugi, I surveyed the shoot heights and weights of a population growing in a sand dune at Sindu-ri, Wonbuk-myeon, Taean-gun, in Chungnam Province, Korea. During the growing season, size classes, based on leaf number and shoot heights, shifted, with those in the medium class moving to higher classes. Although the frequencies of those class characters showed a normal distribution curve throughout the season, the frequencies of each class based on shoot weight were evenly distributed in all size classifications. Coefficients of variation were 0.17 for leaf number, and 0.35 for leaf length and weight per plant. The maximum numbers of leaves were 8.16 +/- 1.38 per plant for those that were non-flowering, but 2.66 +/- 0.62 per. plant for those that did flower. Non-flowering plants exhibited withered leaves by mid-September, while withering began in male plants by mid-May and by mid-July for females. At the end of the growing season, the lengths and weights of leaves from non-flowering plants were 47.8 +/- 16.6 cm and 1773 +/- 628 mg, respectively. When leaf order was considered, leaves increased in size along two-thirds of the ranking, then decreased. In a separate analysis, the growth of Carex plants was compared with those of Elymus mollis in the same sample quadrats. Biomass of the former accounted for only a small portion of the total biomass per unit area (E. mollis having a dry weight of > 76.4 g m(-2)), but under such competition, the leaf lengths and individual plant weights nonetheless increased for Carex as well.
Author Address Dankook Univ, Dept Sci Educ, Seoul 140714, South Korea. Min, BM (reprint author), Dankook Univ, Dept Sci Educ, Seoul 140714, South Korea. bmeemin@hanmail.net
ISSN 1226-9239
ISBN 1226-9239
Publication Date Jun
Year Published 2006
Volume 49
Issue 3
Beginning Page 224-230
Unique Article Identifier WOS:000238896300006
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