Karakteristik Morfologi Benih sebagai Parameter untuk Penentuan Pohon Induk Sumber Benih Pala (Myristica fragrans Houtt.)

Abstract

Nutmeg is an Indonesian native plant, produces essential oill as an export commodity. However, it has low seed uniformity that mengurangi keseragaman tanaman di lapang. The main objective of this research was to obtain morphological characteritics as parameter for nutmeg mother plants selection. This field research was carried out from August-December 2014 at Toisapu, Wakal and Lula nutmeg seed source plantations in Ambon, and Seed Storage and Testing Laboratory, IPB. Characterization was undertaken on ten mother plants from each Wakal and Lula seed source plantations and eight mother plants from Toisapu seed source plantation. Quantitative and qualitative characters of vegetative, fruit, mace and seed from every mother plants were analyzed with Gower’s similarity test. Mother plants that produced high uniformity seed was the 7th (0.80), the 8th (0.93) and the 10th (0.80) mother plants in Wakal; the 2nd (0.80) mother plant in Toisapu; the 2nd (0.82), the 5th (0.80), the 6th (0.82), the 8th (0.84), the 9th (0.80) and the 10th (0.93) mother plants in Lula. Those selected mother plants produced morphological uniform seed morphologically. Lula seed plantation had the highest uniformity level among mother plants (0.77-0.87) compared to Toisapu (0.70-0.87) and Wakal (0.69-0.84) mother plants. The morphological characteristic can be use to select the source seed mother plants which able to produce high morphological uniformity seeds.Keywords: Gower’s similarity, seed production, uniformity

Morphological Diversity and Production of Six Sago (Metroxylon spp.) Accessions from Tana Luwu, South Sulawesi, Indonesia

“…If an increase in variable values displays a positive correlation, the value of the variable pair will also increase. Meanwhile, a negative correlation occurs when an additional variable causes a decrease in another variable (Marzuki et al, 2008).…”

Morfologi Benih Dan Perkecambahan Pala (Myristica fragrans Houtt.) Sebagai Sumber Benih Di Hutan Rakyat, Pulau Bacan, Halmahera Selatan

“…Hasil pengukuran panjang benih pala didapatkan nilai rata-ratanya 29.8 mm sampai 30.9 mm, diameter 23.1 mm sampai 23.7 mm, dan berat 9.04 g sampai 9.66 g (Tabel 1). Hasil penelitian ini sejalan dengan laporan Pramudita et al (2017). Berdasarkan nilai pengukuran tersebut didapatkan bahwa benih yang berasal dari Papaloang memiliki ukuran dan berat paling besar dibandingkan dengan benih dari Amasing dan Babang.…”

Fungal Pathogen Prevalence in Myristica fragrans Houtt. (Nutmeg) Nurseries: Insights from Central Sulawesi, Indonesia

“…This perennial species, with a lifespan exceeding a century, has been identified as a multipurpose tree species. It is increasingly sought after for its essential oil, spice, and wood [2,3]. While Java Island remains the primary cultivation hub for nutmeg in Indonesia, a steady initiation of production has been observed on Sulawesi Island [4].…”

“…Disease infestation in nutmeg plants has been identified as a significant contributor to this sub-optimal productivity. Common diseases include white root fungus (caused by Rigidoporus lignosus) and fruit rot (caused by Stigmina myristicae) [3,7,8].…”