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논문 기본 정보

자료유형
학술저널
저자정보
Kang, K.S. (Department of Forest Genetic Resources, Korea Forest Research Institute) Son, S.G (Warm-Temperature Forest Research Center, Korea Forest Research Institute) Kim, C.S. (Department of Forest Genetic Resources, Korea Forest Research Institute)
저널정보
한국산림과학회(구 한국임학회) 한국산림과학회지 한국산림과학회지 제96권 제5호
발행연도
2007.1
수록면
528 - 532 (5page)

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Clonal differences in fertility (expressed as the number of female and male strobili) were determined for five consecutive years (2002-2006) in a clonal seed orchard of Chamaecyparis obtusa. Fertility varied among clones and among years with producing five-year averages of 378.8 and 871.2 for female and male strobili per ramet, respectively. Correlation between female and male strobilus production was positive over the five years and statistically significant. Based on the observed fertility variation, the effective population sizes (estimated by status numbers, $N_e$) were calculated and varied from 24.3 to 47.9 (48.6% to 95.8% of census number, N) among the five studied years. On average (pooled), the relative effective population size was 82% of the N. Variation in female fertility was higher than that in male fertility, and this variation was reflected on female and male parents' status numbers. Pooled $N_e$ estimated from the five years was higher than that from poor seed production years. From our results, it was concluded that genetic diversity collected from good flowering years would be higher than that from poor flowering years.

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