Revis Asra
Joko Ridho Witono


Jernang (Daemonorops draco (Willd.) Blume) is a dioecious rattan species that produces resin on female individuals. The sex of jernang can only be identified from its inflorescences morphology. Sex survey was conducted in 5 populations of jernang, 3 populations of which in the Bukit Tigapuluh National Park (BTNP), 1 population in the secondary forest in Jambi province and 1 population in the area of rubber plantation in Jambi province. Chi-Squared test on the sex ratio of  jernang showed  that the ratio of the male to female in their natural habitat (Bengayoan and Tebo, 2 parts of the BTNP ecosystem and the Sepintun secondary forest) was distorted from the normal ratio of 1:1, while the cultivated jernang in Nunusan population (BTNPT) and Mandiangin were not significantly different from the normal sex ratio of 1:1. Female individuals from the cultivated population in the Mandiangin (planted in 1997) has an average number of stems per clump more on individual males (27.12) than females (26.92). The result of this study indicated that the D. draco has a good reproductive strategy and thus suitable for cultivation.


Cara Mengutip
Asra R, Syamsuardi, Mansyurdin, Witono JR. 2012. RASIO SEKS JERNANG (Daemonorops draco (Willd.)Blume) PADA POPULASI ALAMI DAN BUDIDAYA: IMPLIKASI UNTUK PRODUKSI BIJI. Buletin Kebun Raya 15(1): 1-9. Diambil dari https://publikasikr.lipi.go.id/index.php/buletin/article/view/111


  1. Aminuddin, M. and M.N. Nur-Supardi. 1993. A note on the sex ratio of Calamus manan planted in a secondary forest. Journal of Tropical Forest Science 6: 81-82.
  2. Balai Informasi Kehutanan Provinsi Jambi. 2009. http://infokehutananjambi.or.id (diakses tgl 23 Januari 2010)
  3. Chia, F. R. 2000. The Sex ratio of Calamus subinermis planted in a secondary forest and Acacia plantation. Journal of Tropical Forest Science 12(1):185-187.
  4. Choong, C. Y., R. Wickneswari and S. Fatimah. 2009. Survival and sex ratio of a planted rattan Calamus palustris Griff. population: implication to seed production and management. Journal of Biological Sciences 9(6): 633–636.
  5. Gupta, D., B. Bleakley and R.K. Gupta. 2007. Dragons’s blood: botany, chemistry and therapeutic uses. Journal of Ethnopharmacology 115: 361-380.
  6. Lee, Y. F. 1995. Genetic and Ecological Studies Relevant to the Conservation and Management of some Bornean Calamus Species. Ph.D. thesis University of Aberdeen, Scotland.
  7. Nanami, S., H. Kawaguchi and T. Yamakura. 2004. Sex change towards female in dying Acer rufinerve Trees. Annals of Botany 93: 733 – 740.
  8. Ortiz, P. L., M. Arista and S. Talavera. 2002. Sex ratio and reproductive effort in the dioceous Juniperus communis subsp. alpine (Suter) Celak. (Cupressaceae) along altitudinal gradient. Annals of Botany 89: 205 – 211.
  9. Pearson, J. 2002. Dragon’s Blood. The Horticulturist
  10. (2): 10-12.
  11. Setyowati, F. M. dan Wardah. 2007 Keanekaragaman tumbuhan obat masyarakat Talang Mamak di sekitar Taman Nasional Bukit Tigapuluh, Riau. Biodiversitas 8(3): 228–232.
  12. Thomson, G.E. 2007. The health benefits of traditional Chinese plant medicines: weighing the scientific evidence. Rural Industries Research and Development Corporation. Australian Government.
  13. Yamashita, N and T. Abe. 2002. Size distribution, growth and inter-year variation in sex expression of Bischofia javanica an invasive tree. Annals of Botany 90: 599–605.
  14. Yunus, M. 2007. Menyingkap Misteri Hutan Taman Nasional Bukit Tigapuluh. Laporan Tahunan PKHS/STTCP.

Artikel paling banyak dibaca berdasarkan penulis yang sama