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Suci Ratna Puri
Fakultas Kehutanan, Universitas Jambi, Indonesia
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Ekologi Punak (Tetrameristra glabra Miq.) Di Hutan Lindung Gambut Sungai Buluh Kecamatan Mandahara Ulu Kabupaten Tanjung Jabung Timur: Ecology of Punak (Tetrameristra glabra Miq.) in the Sungai Buluh Peat Protected Forest, Mandahara Ulu District, East Tanjung Jabung Regency Nursanti, Nursanti; Saleh, Zuhratus; Wulandari, Wulandari; Puri, Suci Ratna; Aini, Yasri Syarifatul
Jurnal Silva Tropika Vol. 8 No. 1 (2024): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v8i1.26133

Abstract

ABSTRACT Punak (T. glabra Miq.) is a type of tree that grows in peat swamp forest in Sungai Buluh HLG. Punak wood is classified as strong class III in fresh condition, while in dry wind conditions it is classified as strong class II and durable class III. This research was conducted at HLG Sungai Buluh, Mandahara Ulu District, Tanjung Jabung Timur Regency. with the aim of knowing the ecological conditions of punk plants in the Sungai Buluh HLG. Data collection was done by making 30 sample plots placed by purposive sampling where there were peaks. The data taken in the sample plot is tree vegetation with a diameter of 10 cm dbh. In addition to vegetation data, the physical environment for growth was also taken in the form of temperature, humidity, light intensity and soil pH. The results of the study found 60 individuals of punak trees (T. glabra Miq.) with a density of 50 individuals/ha. The punak habitat in the Sungai Buluh HLG is composed of 45 plant species from 22 families with a total of 569 individuals. The diversity index is 1.48 which is included in the moderate or moderate category. Punak plants have a high level of association with other plants, namely D. confentiflora with an association index value based on the Jaccard index of 0.77, M. motleyana of 0.77, D. siamang of 0.76, S.uliginosa 0.67, S. scorpioides 63 and K. laurina 0.57. Punak trees have environmental data that the daily temperature ranges from 24.25-280C, daily humidity ranges from 68.25-80.50C and the average value of light intensity is 505 lux, with soil pH ranging from 3-4 and into the category of sapric peat maturity or peat with a high level of maturity. Keyword : Ecologi,Tetramerista glabra Miq.,HLG sungai Buluh ABSTRAK Punak (T. glabra Miq.) merupakan salah satu jenis pohon yang tumbuh di hutan rawa gambut di HLG Sungai Buluh. Kayu punak tergolong kelas kuat III dalam kondisi segar sedangkan dalam kondisi kering angin masuk dalam kelas kuat II dan kelas awet III. Penelitian ini dilakukan di HLG Sungai Buluh Kecamatan Mandahara Ulu Kabupaten Tanjung jabung Timur,dengan tujuan untuk mengetahui kondisi ekologi tumbuhan punak di HLG Sungai Buluh. Pengambilan data dengan cara membuat 30 plot contoh yang diletakkan secara purposive sampling pada tempat terdapat punak. Data yang diambil dalam plot contoh yaitu vegetasi pohon dengan diameter ≥10 cm dbh. Selain data vegetasi, juga diambil fisik lingkungan tumbuh berupa suhu, kelembaban,intensitas cahaya dan pH tanah. Hasil penelitian ditemukan 60 individu pohon punak (T. glabra Miq.) dengan kerapatan 50 individu/ha. Habitat punak di HLG Sungai Buluh disusun oleh 45 jenis tumbuhan dari 22 suku dengan total 569 individu. Indeks keanekaragaman sebesar 1,48 yang termasuk kedalam katagori sedang atau cukup melimpa. Tumbuhan punak memiliki tingkat asosiasi yang tinggi dengan tumbuhan lain yaitu D. confentiflora dengan nilai indeks asosiasi berdasarkan indeks jaccard sebesar 0,77, M. motleyana sebesar 0,77, D. siamang sebesar 0,76, S.uliginosa 0,67, S. scorpioides 63 dan K. laurina sebesar 0,57.pohon punak memiliki data lingkungan yang bersuhu harian berkisar antara 24,25- 280C, kelembaban harian berkisar antara 68,25-80,50C dan nilai rata-rata intensitas cahaya sebesar 505 lux, dengan pH tanah berkisar antara 3-4 dan masuk kedalam katagori kematangan gambut saprik atau gambut dengan tingkat kematangan yang tinggi. Kata kunci : Ekologi,Tetramerista glabra Miq.,HLG sungai Buluh.
Sifat Kimia Kayu Medang Sereh Berdasarkan Bagian Kayu dan Posisi Batang: Chemical Properties of Medang Sereh Wood Based on Wood and Log Position Anggraini, Riana; Khabibi, Jauhar; Puri, Suci Ratna
Jurnal Silva Tropika Vol. 8 No. 1 (2024): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v8i1.33812

Abstract

ABSTRACT The other properties of medang sereah (Litsea sp.) wood that need to be identified are the chemical properties of wood based on the part (terrace and sapwood) and the position of the trunk (base, middle, and end). The purpose of identifying the nature of this lemongrass medang wood will facilitate the introduction of lemongrass medang wood types with other types of medang wood. In addition, it will facilitate the process of working and the purpose of using these types of wood further according to their characteristics because the identification of wood properties is an initial process in determining the allocation of wood utilization. The levels of holocellulose, alpha-cellulose, hemicellulose in the core have relatively greater levels than the sapwood. The hemicellulose content at the base has a relatively higher value compared to the end and middle of the medang citronella log. The lignin content of the sapwood part has a lower tendency compared to the terrace. The results of the analysis also showed that the wood at the end of the trunk had a fairly high lignin content compared to the base of the trunk. Keywords: Litsea sp., wood position, wood chemical, terrace and sapwood   ABSTRAK Sifat kayu medang sereh lainnya yang perlu diidentifikasi yaitu sifat kimia kayu berdasarkan bagian (teras dan gubal) dan posisi batangnya (pangkal, tengah, dan ujung). Tujuan mengidentifikasi sifat kayu medang sereh ini, maka akan mempermudah dalam pengenalan jenis kayu medang sereh dengan jenis kayu medang lainnya. Selain itu, akan mempermudah proses pengerjaan dan tujuan penggunaan jenis kayu tersebut lebih lanjut sesuai karakteristiknya karena identifikasi sifat kayu merupakan suatu proses awal dalam menentukan alokasi pemanfaatan kayu. Pengujian komponen kimia mengacu pada standar ASTM. Kadar holoselulosa, alpha-selulosa, hemiselulosa bagian teras memiliki kadar relatif lebih besar dibandingkan bagian gubal. Kadar hemiselulosa pada bagian pangkal memiliki nilai yang relatif lebih tinggi daibandingkan bagian  ujung dan tengah batang kayu medang sereh. Kadar lignin bagian gubal memiliki kecenderungan lebih rendah dibandingkan dengan bagian teras. Hasil analisis juga menunjukkan bahwa kayu dibagian ujung batang memiliki kadar lignin yang cukup tinggi dibandingkan bagian pangkal batang. Kata kunci: medang sereh, posisi batang, kimia kayu, bagian teras dan gubal
Pengaruh Pemberian Pupuk NPK Terhadap Pertumbuhan Bibit Kaliandra Merah (Calliandra Calothyrsus Meissn) Pada Media Ultisol: The Effect of NPK Fertilizer Application on The Growth of Red Calliandra Seedlings (Calliandra calothyrsus Meissn) on Ultisol Media Puri, Suci Ratna; Hamzah, Hamzah; Handayani, Rajjitha; Rumondang, Jenny; Desthaniah, Mayhesti
Jurnal Silva Tropika Vol. 9 No. 1 (2025): Jurnal Silva Tropika
Publisher : Fakultas Kehutanan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jurnalsilvatropika.v9i1.44417

Abstract

ABSTRACT Red caliandra (Calliandra calothyrsus Meissn) is a plant that belongs to the Fabaceae family. Callindra has a rapid growth rate, reaching a height of 3-5 meters in the first year on suitable land. The planting medium commonly used for seedlings includes ultisol soil, which generally has sensitive aeration pores and low stability index, causing the soil to easily become compacted. The growth of quality calliandra seedlings in the nursery is influenced by soil fertility; therefore, additional treatment in the form of fertilizer is necessary to ensure sufficient nutrient content. One of the fertilizers that can be used is the NPK compound fertilizer. This fertilizer is one of the inorganic fertilizers that is very efficient in increasing the availability of macro nutrients N, P, and K. This research was conducted in the Forest Cultivation Laboratory of the Faculty of Agriculture, Jambi University, using the Completely Randomized Design (CRD) method with one factor, namely the NPK fertilizer 15:15:15. The treatments given were: P0 (without treatment), P1 (NPK 1 grams), P2 (NPK 2 grams), P3 (NPK 3 grams), P4 (NPK 4 grams), and P5 (NPK 5 grams). Observation parameters include height increase, diameter, leaf count, root dry weight, and shoot dry weight. Based on the research results, it can be concluded that the application of NPK fertilizer has no significant effect on the growth of calliandra seedlings in ultisol media, as observed in all parameters. The application of NPK at certain doses does not yield optimal results in the growth of callindra seedlings.   Keywords: NPK, red calliandra, ultisol ABSTRAK Kaliandra merah (Calliandra calothyrsus Meissn) merupakan tanaman yang termasuk ke dalam famili fabaceae. Kaliandra merah memiliki pertumbuhan yang cepat, ditahun pertama tingginya dapat mencapai 3-5m pada lahan yang memadai. Media tanam bibit yang banyak digunakan diantaranya adalah tanah ultisol yang umumnya peka memiliki pori aerasi dan indeks stabilitas rendah sehingga menyebabkan tanah mudah menjadi padat. Pertumbuhan bibit kaliandra yang berkualitas di persemaian dipengaruhi oleh kesuburan tanah, dengan demikian perlu perlakuan tambahan berupa pupuk agar unsur hara mencukupi. Salah satu pupuk yang dapat digunakan adalah pupuk majemuk NPK. Pupuk ini merupakan salah satu pupuk anorganik yang sangat efisien dalam meningkatkan ketersediaan unsur hara makro N, P, dan K. Penelitian ini dilaksanakan di Laboratorium Budidaya Hutan Fakultas Pertanian Universitas Jambi dengan menggunakan metode Rancangan Acak Lengkap (RAL) 1 faktor yaitu pupuk NPK 15:15:15. Perlakuan yang diberikan yaitu: P0 (tanpa perlakuan), P1 (NPK 1 gram), P2 (NPK 2 gram), P3 (NPK 3 gram), P4 (NPK 4 gram), dan P5 (NPK 5 gram). Parameter pengamatan berupa pertambahan tinggi, diameter, jumlah daun, berat kering akar, dan berat kering tajuk. Berdasarkan hasil penelitan, dapat disimpulkan bahwa pemberian pupuk NPK berpengaruh tidak nyata terhadap pertumbuhan bibit kaliandra merah pada media ultisol yang terlihat pada semua parameter. Pemberian NPK dengan dosis tertentu tidak memberikan hasil optimal pada pertumbuhan bibit kaliandra merah.   Kata kunci: NPK, kaliandra merah, ultisol
OPTIMIZING EUCALYPTUS PELLITA SEEDLING GROWTH THROUGH NPK FERTILIZER AND LIGHT INTENSITY REGULATION Ratna Puri, Suci; Mahub, Itang Ahmad; Rumondang, Jenny; Handayani, Rajjitha; Hardiyanti, Rizky Ayu; Aulia, Ahmad Khoiril
Jurnal Belantara Vol 8 No 2 (2025)
Publisher : Forestry Study Program University Of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbl.v8i2.1121

Abstract

Eucalyptus pellita is a type of fast-growing plant (fast-growing species). The advantage of this plant is that it is a short rotation or fast-growing plant, with fewer disease attacks. The benefits of the plant are quite numerous and it has high economic value. Considering that the optimal light intensity for eucalyptus seedling growth is not yet known, it is necessary to test the effects of various light intensities using shade in the form of paranet. This research was conducted using a factorial Completely Randomized Design (CRD) with a split-plot experimental pattern consisting of 4 treatment levels. Each treatment was repeated 3 times, The results of the study on the effect of NPK fertilizer and light intensity on the growth of eucalyptus seedlings indicate that the interaction of 5g NPK fertilizer per seedling and 100% light intensity is a better treatment compared to other treatments. This is suspected because eucalyptus is a plant that requires sufficient light intensity to experience the growth of eucalyptus seedlings. The growth of eucalyptus seedlings is influenced by light intensity, which supports the increase in height, stem diameter, and number of leaves. Based on the results of this study, it can be concluded that the treatment with NPK fertilizer and light intensity has a significant effect on increasing stem diameter. In the treatment P2C0, which is NPK fertilizer 7g/seedling and light intensity 100%, there is no significant difference compared to treatments P1C0 and P3C0, which are NPK fertilizers 5g and 9g/seedling at 100% light intensity.
Co-Authors Ade Adriadi Afrillia, Ciara Aini, Yasri Syarifatul Albayudi, Albayudi Armada, Galang Arum Sekar Wulandari Asrizal Paiman Asrizal Paiman Aulia, Ahmad Khoiril Desthaniah, Mayhesti Dinanty, Fawwaz Eva Achmad Eva Achmad Farikhah, Anisatul Hamzah, Hamzah Hardiyanti, Rizky Ayu Jauhar Khabibi Jenny Rumondang Mahub, Itang Ahmad Maria Ulfa Maria Ulfa Marwoto Marwoto Nisya, Dian Nurheni Wijayanto Nursanti Nursanti Rajjitha Handayani Ria Rif’atunidaudina Riana Anggraini Riana Anggraini, Riana Rike Puspitasari Tamin Rike Puspitasari Tamin Safira, Doani Anggi Saleh, Zuhratus Siregar, Helmalia Vareira Wulan, Cory Wulandari Wulandari