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Pattern of Sexual Dimorphism in Garcinia kola (Heckel) Plantation

첫 페이지 보기
  • 발행기관
    강원대학교 산림과학연구소 바로가기
  • 간행물
    Journal of Forest and Environmental Science KCI 등재 바로가기
  • 통권
    제38권 제4호 (2022.12)바로가기
  • 페이지
    pp.275-283
  • 저자
    Henry Onyebuchi Okonkwo, Godwin Ejakhe Omokhua, Uzoma Darlington Chima
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A423149

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원문정보

초록

영어
A study was designed to investigate the pattern of sexual dimorphism in a plantation of Garcinia kola . Twenty trees were randomly selected for the study and have been observed to flower regularly. A total of 100 inflorescence were randomly collected from the crown of each tree and 500 flowers randomly assessed within the period of four (4) flowering seasons. Floral sex assessment was done visually and with a hand magnifying lens; floral morphometric measurements (i.e. pedicel and perianth length and breadth), inflorescence length, and breadth) was taken using a veneer caliper; number of flowers per inflorescence and inflorescence per twig was counted; while, data analysis was conducted on excel using analysis of variance and pairwise t-test comparison. Four floral sexes were identified in the G. kola plantation studied which were unisexual male flowers, unisexual female flowers, cosexual unisexual male flowers, and cosexual hermaphrodite flowers. Three tree sexes were identified viz: inconstant male, invariant female, and cosexual trees. The plantation was significantly sexually dimorphic in floral sex and phenotypic traits (i.e. pedicel and perianth size), and as well as sexually dimorphic in tree sex and reproductive phenotypic traits (i.e. inflorescence size, number of inflorescences per twig, and number of flower bud per inflorescence). The sexual system of the plantation was therefore trioecious with features suggestive of evolving dioecy through the gynodioecious pathway.

목차

Abstract
Introduction
Materials and Methods
Plantation description
Species description
Floral sex study and morphometric measurements
Results and Discussion
Flower and tree sex
Pedicel dimorphism among floral sexes
Perianth size dimorphism
Inflorescence dimorphism
Conclusion
References

키워드

pistillode invariant-female gynodioecy inconstant-male staminode

저자

  • Henry Onyebuchi Okonkwo [ Swamp Forest Research Station Onne, Forestry Research Institute of Nigeria, Onne, Rivers state 501101, Nigeria ] Corresponding author
  • Godwin Ejakhe Omokhua [ Department of Forestry and Wildlife Management, Faculty of Agriculture, University of Port Harcourt, Port Harcourt 500001, Nigeria ]
  • Uzoma Darlington Chima [ Department of Forestry and Wildlife Management, Faculty of Agriculture, University of Port Harcourt, Port Harcourt 500001, Nigeria ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
  • 설립연도
    1975
  • 분야
    농수해양>임학
  • 소개
    강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    Journal of Forest and Environmental Science [산림과학연구]
  • 간기
    계간
  • pISSN
    2288-9744
  • eISSN
    2288-9752
  • 수록기간
    1981~2025
  • 등재여부
    KCI 등재
  • 십진분류
    KDC 526 DDC 634

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