지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Male and female strobilus production was assessed annually over a five-year period for a clonal seed orchard of sugi (Cryptomeria japonica D. Don) in Korea. Clonal fertility and fertility variation, expressed by both sibling coefficient and coefficient of variation in strobilus production among 40 orchard clones, were reported. Fertility varied among clones and among years, producing five-year averages per ramet of 464.3 and 971.1 for female and male strobili, respectively. The correlation between female and male strobilus production was positive in each of the five years studied and statistically significant with the exception of one poor flowering year. The clonal status number (Ns), a measure of genetic diversity, was calculated based on the observed clonal fertility variation, varying from 27.6 (N = 40) in the poorest flowering year (2002) to 35.8 in the best year (2005). On average (pooled), the relative status number was 95% of the census number (N). Variation of female fertility was higher than that of male fertility for the five consecutive years, and the status numbers of female and male parents reflected this variation. The pooled Ns estimation from all five years was higher than any single year, implying that genetic diversity would increase when seeds collected from different years are pooled. Sexual asymmetry calculations showed that clonal contributions would be balanced between genders.
목차
등록된 정보가 없습니다.
참고문헌 (23)
참고문헌 신청
Bila A / 2000 / Fertility variation and its effects on gene diversity in forest tree populations : 31 ~
Burczyk J / 1997 / Flowering and cone production variability and its effect on parental balance in a Scots pine clonal seed orchard 54 : 129 ~ 144
Choi WY / 2004 / Estimation of heritabilities and clonal contribution based on the flowering assessment in two clone banks of Pinus koraiensis S. et Z : 172 ~ 177
El-Kassaby YA / / Cost of reproduction in Douglas-fir : 1429 ~ 1432
El-Kassaby YA / / The relation between reproductive phenology and reproductive output in determining the potential gametic pool profile in a Douglas- fir seed orchard : 827 ~
Burczyk J / 1997 / Flowering and cone production variability and its effect on parental balance in a Scots pine clonal seed orchard 54 : 129 ~ 144
Choi WY / 2004 / Estimation of heritabilities and clonal contribution based on the flowering assessment in two clone banks of Pinus koraiensis S. et Z : 172 ~ 177
El-Kassaby YA / / Cost of reproduction in Douglas-fir : 1429 ~ 1432
El-Kassaby YA / / The relation between reproductive phenology and reproductive output in determining the potential gametic pool profile in a Douglas- fir seed orchard : 827 ~
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