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All Journal Jurnal Wasian Jurnal Penelitian Ekosistem Dipterokarpa
Tri Maria Hasnah, Tri Maria
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Earth & Planetary Sciences Education

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Identification and Seedlings Growth Evaluation of Shorea Species-Producing Tengkawang Windyarini, Eritrina; Hasnah, Tri Maria
Jurnal Wasian Vol 2, No 1 (2015): Jurnal Wasian
Publisher : Balai Penelitian Kehutanan Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v2i1.868

Abstract

Most of  non timber forest product (NTFP) utilization taken from natural forests which decrease on productivity annually, including tengkawang producer species which taken from West Kalimantan natural forests. This condition needs an effort to preserve those species from natural population utilization through plantation forest development that require spesific strategy. This study was part of breeding strategy of shorea species producing tengkawang which aimed to species identify and seedling growth evaluation used genetic material from 2 (two) population from West Kalimantan. The research was arranged in 2 (two) steps, i.e.1) species identification used morphology characteristic difference, and 2) seedling growth evaluation (height,diameter,sturdiness). Seedling growth evaluation was arranged in RCBD, with 5 plot (combination of species and source population), contained 25 seedlings and 4 replications (blocks). The result showed that seedlings of shorea species producing tengkawang, i.e. S.stenoptera,  S.macrophylla, and S.gysbertsiana can be different from its stipulae morphology characteristic. Growth of 10 months shorea species producing tengkawang seedlings were significantly different on height and sturdiness. Seedlings height were 67,19 – 88,79 cm, seedlings diameter 9,65 – 10,33 mm and sturdiness 7 – 9,21 in range. The best seedling growth was S.stenoptera and S.macrophylla from Gunung Bunga, West Kalimantan.
Keragaman Genetik Meranti (Shorea leprosula Miq.) Asal Kalimantan Dengan Analisis Isozim Hasnah, Tri Maria
Jurnal Penelitian Ekosistem Dipterokarpa Vol 8, No 1 (2014): Jurnal Penelitian Dipterokarpa
Publisher : Balai Besar Penelitian dan Pengembangan Ekosistem Hutan Dipterokarpa

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Abstract

Shorea leprosula Miq. merupakan salah satu jenis kayu dari famili Dipterocarpaceae yang mempunyai nilai ekonomi yang tinggi. Kerusakan hutan alam karena illegal logging dan konversi lahan diduga telah mengurangi keragaman genetik dan mempersempit basis genetik jenis tersebut. Sebagai penanda genetik molekuler, isozim dapat digunakan untuk menduga tingkat keragaman genetik. Pengetahuan mengenai kergaman genetik akan memberikan peranan yang penting dalam program pemuliaan dan konservasi genetik jenis S. leprosula di Indonesia. Bahan yang digunakan dalam penelitian ini adalah daun S. leprosula yang masih juvenile dari populasi Kalimantan pada lima pertanaman konsevai ex-situ yang terletak di Carita (Banten), Semaras - Pulau Laut (Kalimantan Selatan), Gunung Kencana (Jawa Barat), Batu Ampar (Kalimantan Timur), dan Kotawaringin Timur (Kalimantan Tengah). Populasi yang digunakan dalam penelitian ini adalah Gunung Bunga (Kalimantan Barat), Kenangan (Kalimantan Timur), Melak (Kalimantan Timur), Bengalun (Kalimantan Timur), Labanan (Kalimantan Timur), Meraang (Kalimantan Timur), Sambarata (Kalimantan Timur), dan Bukit Baka (Kalimantan Tengah). Empat sistem enzim tersebut dikendalikan oleh lima lokus (6Pg, Got, Est-1, Est-2, dan Shd) dengan 22 alel. Keragaman genetik S. leprosula di Kalimantan tergolong tinggi (HT =0,329) dengan 61,2% keragaman genetik berasal dari keragaman antar populasi. Peningkatan proporsi individu homozigot dijumpai pada hampir semua lokus pada semua populasi S. leprosula di Kalimantan ditandai dengan indeks fiksasi yang bernilai positif (F-ix = 0,312).
Co-Authors Eritrina Windyarini