Cordia dichotoma G. Forst. : Bioecology and population density

3rd International Conference on Mathematics, Science and Education 2016

数学;自然科学;教育

Rahayu, E.S.^1 ; Martin, P.^1 ; Dewi, N.K.^1 ; Kurniawan, F.H.^1

Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Sekaran Street, Gunungpati Semarang

50229, Indonesia^1

关键词: Dichotoma;    Light intensity;    Literature reviews;    Local people;    Population densities;    Rare species;    Sampling method;    Sandy loam soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/824/1/012059/pdf
DOI  :  10.1088/1742-6596/824/1/012059

来源: IOP

【 摘 要 】

Kendal tree is declared as an identity flora of Kendal Regency, Central Java, Indonesia. It is predicted as a rare species; most of the local people do not know the existence of this tree. The study aimed to describe some aspects of bioecology and a population density of Kendal tree. An explorative study was conducted from March to July 2016, through interview, observation, and literature review. The respondents were determined by purposive and snowball sampling methods. The data were analysed descriptively. Results showed that there were very limited numbers (only five trees) of Kendal tree throughout Kendal Regency. The species was identified as Cordia dichotoma G. Forst. The tree is 3-15 m in height. The leaves are simple and arranged spirally, inflorescence dichotomous, bisexual, with five gamosepalous and gamopetalous. Generative reproduction occurred at a low rate. The tree grew optimally in a dusty, sandy loam soil, pH 6.0-6.5 with a temperature ranged from 27-34 °C, a light intensity of 450-1580 lux, and an altitude of about 10 meters above sea level. In conclusion, C. dichotoma is a rare plant in Kendal Regency. This plant needs an alternative method of propagation, regeneration and conservation using in vitro technique.