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Pengaruh Perlakuan Media Tumbuh terhadap Perkecambahan Benih Kayu Merah (Pterocarpus Indicus Willd) Jeriels Matatula; Flora Evalina Ina Kleruk
Partner Vol 20, No 2 (2013): Edisi November
Publisher : Politeknik Pertanian Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35726/jp.v20i2.23

Abstract

Pterocarpus indicus Willd (Kayu Merah) is a straight bole hardwood plant that is easily grown in tropical areas such as Indonesia. In the East Nusa Tenggara Province, this plant is becoming rare which results in an effort of development and conservation of the species by the government through plant propagation. One of the ways of conserving the plant is through plant propagation. Problems faced in the propagation method through nurseries are breaking the dormant periode of kayu merah and finding the right media. The aim of this research is to understand the influence of treatment of growth medium in the kayu merah’s germination. This research used completely randomized design with various treatments such as sand, black soil, bokasi, soil : sand (3:1), soil;sand;bokasi (3:2:2), soil:sand (1:1), soil:sand:bokasi (1:1:1) and soil:fertiliser (1:1). Every treatment was redone three times. The analysis used was analysis of varians followed by Significant difference test. The results showed that the highest successful of germination was the treatment using sand as the medium because of the good drainage so that the moisture level was optimum. On the other hand, the lowest was the treatment using bokasi as the medium because of the high moisture level which resulted in the decay of the seeds of kayu merah. Key words: growth media, germination, kayu merah
Structure, Composition, and Diversity of Dry Tropical Forest Types in the Sisimeni Sanam Forest Area, Kupang Regency, East Nusa Tenggara Province Dako, Fransiskus Xaverius Dako; Flora Evalina Ina Kleruk; Kristianto Wibison So; Blasius Paga; Yudhistira A.N.R Ora
Journal of Sylva Indonesiana Vol. 8 No. 2 (2025): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v8i2.17618

Abstract

Sisimeni Sanam Forest Area is a tropical dry forest area on Timor Island that plays an important role in life, such as maintaining and preserving soil fertility, being the lungs of the world, being a place for living things to live, being a source of biodiversity, regulating water management, and preventing the dangers of flooding and erosion. Data and information regarding the ecology of vegetation in this forest are still limited. This study aims to determine the structure, composition, and diversity of vegetation types in the Sisimeni Sanam Forest Area. The method used is a systematic sampling method using a double rectangular plot with a plot size of 20 x 20 m (trees), 10 x 10 m (poles), 5 x 5 m (sapling), and 2 x 2 m (seedlings and understorey). The results of the study showed that the types of vegetation found were 49 species grouped into 25 families. Cromolaena odorata has the highest relative density and frequency values at the seedling and understorey levels, while Tectona grandis (teak) dominates at the sapling, pole, and tree levels. The important value index at each growth level is in the high category with a value range of 200% - 300%. The value of the Species Diversity Index (H') in the Sisimeni Sanam Forest Area shows a number <1, meaning it is included in the low category. Forests with low species diversity values indicate that the forest area has experienced disturbance or forest damage caused by both nature and humans