Pengaruh Pupuk Organik Cair (POC) Limbah Tandan Kosong Kelapa Sawit (TKKS) bertujuan untuk mengetahui biomassa dari Mucuna bracteata pada fase pembibitan. Rancangan penelitian dengan menggunakan metode rancangan acak kelompok (RAK) non faktorial. Sebagai perlakuan adalah dosis POC. Taraf perlakuan disusun 0, 5, 10, 15, 20, 25, dan 30 ml per polibeg. Data hasil pengamatan dianalisis menggunakan analisis sidik ragam (Analysis of Variance) dan uji DMRT signifikan 5% menggunakan software SAS versi 9.3.1. Berdasarkan hasil analisis data, diperoleh hasil penelitian bahwa pemberian POC TKKS berpengaruh nyata terhadap berat segar tajuk, berat kering tajuk, rasio tajuk akar sedangkan pada berat segar akar, berat kering akar, jumlah bintil akar tidak memberikan pengaruh nyata.

This community service program aims to increase the knowledge and skills of Women in Namo Sialang Village, packaging herbal tea products produced by processing natural ingredients like rose, tawar and sembur (made from special spices and herbs from the community). The method for implementing this service used participatory training with activities including socialization and assistance with product packaging. The number of participants involved was 20, consisting of a Women Group named "NandeTa". The evaluation instrument used in this activity was a questionnaire, which was analyzed descriptively. The results of the service showed that there had been an increase in the knowledge and skills of "NandeTa" in packaging the herbal tea that had been produced. Apart from that, "NandeTa" also became aware that packaging was one attraction that stimulates consumer buying interest, especially in tourist areas.

This research aims to determine the effect of concentration and duration immersion giving LOM banana weevil against the gowth of Mucuna bracteata. The research was conducted in the garden of Jalan Setia Bangun Pasar III, Sei Beras Sekata, Kecamatan sunggal, Kabupaten Deli Serdang, Sumatra utara and continued in the laboratory of the Indonesian Oil Palm Research Institute (IOPRI). This research was started in April-June 2020. This study used a randomized complete block design (RCBD) factorial. The first factor was the concentration of local microorganisms (LMO) of Banana Weevil consisting of 4 levels, namely: Without treatment, 15%, 30%, 45%. The second factor. The duration of immersion consists of 4 levels, namely: No immersion time, 15 minutes, 30 minutes, 45 minutes. Observation data were analyzed usingDuncan's Multiple Range Test with a significant 5%. The results showed that the LMO concentration of banana weevil was effective in increasing the gowth of the number of leaves 39.77, tendril length 83.14 cm, shoot fresh weight 28.54 g, and shoot dry weight 6.03 g. The duration of soaking had a significant effect on the highest number of leaves at week 3 (9.63 pieces). The interaction application of banana weevil concentration and soaking time affected the number of root nodules (40.50 gains) and root dry weight (0.73) g of theplant Mucuna bracteata.

The coverage of Mucuna bracteata D.C. cuttings plays a vital role in their survival percentage, as it helps maintain appropriate humidity and temperature levels. Uncovered cuttings may experience inhibited growth due to their inability to adapt to direct sunlight. Moreover, the acclimatization process following the removal of the cover is crucial before transferring the cuttings to the field. This research aimed to investigate the impact of various coverage durations on the survival rate of Mucuna bracteata D.C. cuttings. The research was conducted in Telaga Said Village, Langkat Regency, Indonesia, using a non-factorial randomized block design (RBD). The treatments included coverage durations of 1 week (L1), 2 weeks (L2), 3 weeks (L3), 4 weeks (L4), and 5 weeks (L5) after the initial covering of the cuttings. The results revealed that a 4-week coverage duration provided an excellent survival rate of 85% for Mucuna bracteata D.C. cuttings, along with the highest average number of leaves, number of tendrils, number of root nodules, average fresh and dry weight of the crown, average fresh and dry weight of the roots, and the highest average root-to-crown ratio. This information is valuable for the successful propagation and establishment of Mucuna bracteata D.C. cuttings, aiding in the efficient cultivation of this species. Further studies can explore additional factors that may contribute to the overall success of Mucuna bracteata D.C. propagation.

Perbanyakan mucuna merupakan bagian penting dalam pengelolaan perkebunan kelapa sawit. Mucuna sebagai tanaman kacangan penutup tanah memiliki peran penting dalam fase persiapan areal tanam. Penelitian ini bertujuan untuk mengetahui konsenstrasi yang sesuai dan lama perendaman biji mucuna di dalam mikroorganisme lokal rebung bambu terhadap keberhasilan pertumbuhan Mucuna bracteata. Metode yang digunakan dalam penelitian ini adalah dengan Rancangan Acak kelompok (RAK) faktorial. Faktor konsentrasi MOL rebung bambu: Kontrol (R0), 100 ml/l (R1), 150 ml/l (R2), 200 ml/l (R3) dan lama perendaman: Kontrol (M0), 15 menit (M1), 30 menit (M2), 45 menit (M3). Analisis sidik ragam (Analysis of Variance) dan uji DMRT signifikan 5% menggunakan software SAS versi 9.3.1. lokasi penelitian berada di Jalan Setia Bangun Pasar III, Kecamatanan Sunggal, Kabupaten Deli Serdang Berdasarkan hasil analisis data, diperoleh hasil penelitian bahwa berbagai parameter yang diamati yaitu jumlah daun, berat segar dan kering tajuk, berat segar dan kering akar, jumlah bintil akar, dan panjang akar menunjukkan hasil statistik yang interaksinya tidak berpengaruh nyata. Namun secara nyata menunjukkan adanya respon positif terhadap pertumbuhan dari parameter yang diamati.

Oil palm is one of the essential vegetable oil-producing plants. Moreover, palm oil is a good trade commodity, and in the future, it is believed that palm oil will not only be able to produce various products such as butter, cooking oil, or soap but also can be a substitute for fuel oil. This study aims to compare crop production in coastal and non-coastal peatlands. This study uses secondary data, including production, rainfall, and fertilization data from the last five years. The results show that Block F2 (on the beach) has the highest production, with a value of 2,442,572 kg/ha. In comparison, Block B2 (non-coastal) has a lesser amount, with a value of 1,818,710 kg/ha.

Effect of OPEFB POC Application on Mucuna bracteata Seedling Growth. This study aims to determine the effect of application and dose level of EFB POC on the growth of Mucuna bracteata seedlings. This research was conducted from January to March using an experimental method with a Non-Factorial Randomized Block Design (RAK) with four replications and 7 levels of POC TKKS treatment: (P0) No POC TKKS treatment, (P1) 5 ml/polybad POC TKKS, ( P2) 10 ml/polybad POC TKKS, (P3) 15 ml/polybad POC TKKS, (P4) 20ml/polybad POC TKKS, (P5) 25 ml/polybad POC TKKS, (P6) 30 ml/polybad POC TKKS. Research data were analyzed using analysis of variance (Analysis of variance) and Tuckey's advanced test at 5% level. The results showed that giving POC OPEFB to the growth of Mucuna bracteata seedlings had a significant effect on the growth of tendril length and number of leaves.

Kelapa sawit merupakan satu dari sekian banyak komoditas penyumbang terbesar bagi devisa negara. Pertumbuhan bibit kelapa sawit sangat ditentukan oleh ketersediaan unsur hara dengan pemanfaatan limbah organik seperti kulit pisang kepok dan urine domba. Hal tersebut akan mengurangi penggunaan pupuk kimia (anorganik) yang dapat menciptakan pertanian ramah lingkungan. Selain itu, berdasarkan refrensi yang penulis baca masih sangat jarang dijumpai penelitian mengenai pemanfaatan kulit pisang kepok menjadi pupuk organik cair terutama aplikasi pada pembibitan kelapa sawit. Penelitian ini memiliki tujuan untuk mengetahui respon pertumbuhan bibit kelapa sawit di tahap Pre-Nursery setelah diberikan kulit pisang kepok sebagai Pupuk Organik Cair (POC) dengan dosis yang berbeda. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) 1 faktorial. Faktornya adalah POC kulit pisang kepok yang terdiri dengan 4 taraf yaitu: Kontrol (A0), 50 ml (A1), 150 ml (A2), 300 ml (A3). Data dianalisis dengan menggunakan sidik ragam ( analysis of variance ) di lanjutkan Duncan’s Multiple Range Test dengan signifikan 5 %. Parameter yang diamati yaitu tinggi tanaman, diameter batang, jumlah daun, berat segar tajuk, berat kering tajuk, berat segar akar dan berat kering akar tanaman. Berdasarkan hasil dari penelitian ini bahwa pengaplikasian pupuk organik cair kulit pisang kepok tidak berpengaruh nyata terhadap respon pertumbuhan bibit kelapa sawit di tahap pre-nursery , namun bila berdasarkan data rataan, pengaplikasian 50 ml pupuk organik cair kulit pisang kepok mampu mendorong pertumbuhan bibit kelapa sawit pada tahap pre-nursery .

Introduction: This study aims to obtain concentration of shallot extract (Allium cepa ) and growth regulators to increase growth of Mucuna bracteata. Mucuna is a land cover plant that must be planted in oil palm plantation areas. It is very important to be able to cover the planting area. Materials and Methods: This study used two factorial in randomized block design. The first was concentration of shallot extract per 100 ml distilled water consists of 4 levels, such as control (B0), 10 cc (B1), 20 cc (B2), 30 cc (B3) and the second was the auxins-plant growth regulator consists of 4 levels: Control (G0), 100 ppm (G1), 200 ppm (G2), 300 ppm (G3). Data analyzed with ANOVA with a significant 5% and continued with the DMRT using SAS version 9.1.3. Results: It was found that effect of concentration of shallot extract had a significant effect on survival percentage of Mucuna bracteata at a concentration of 10 cc (B2) after opening the lid at four weeks after planting (WAP) and did not change until 8 WAP. Likewise, the number of leaves at the control concentration (B0) at the age of 6 WAP, and a concentration of 10 cc (B1) at the age of 7-8 WAP. The concentration of growth regulators and their interactions did not significantly affect the survive percentage and number of leaves in Mucuna bracteata.

Penelitian ini bertujuan untuk menganalisis dan mengetahui sebaran spasial mahoni daun lebar di hutan tanaman Cikabayan. Teknik sebaran spasial dimana hal ini berfungsi untuk mengambil data secara spasial dalam ekologi.Pengamatan ini dilakukan dengan membuat plot secara acak dan membuat petak kuadrat 20 x 20 m sebanyak empat plot. Data yangakan diambil dan dianalisisyaitu data jumlah individu mahoni dari tingkat tiang dan pohon. Metode analisis data yang digunakan adalah indeks disperse dan metode sebaran binomial positif.Berdasarkan pengamantan yang dilakukan mahoni menyebar secara mengelompok dengan menggunakan beberapa indeks seperti indeks binomial positif dan indeks morisita.

Tujuan penelitian ini untuk mengetahui konsentrasi terbaik dari pemberian POC kulit semangka (Citrullus vulgaris Schard.) terhadap pembibitan kelapa sawit, mengetahui tingkat kematangan terbaik POC kulit semangka (Citrullus vulgaris Schard.) yang optimal untuk pertumbuhan bibit kelapa sawit, dan mengetahui pengaruh interaksi antara pemberian POC kulit semangka dengan tingkat kematangan POC kulit semangka (Citrullus vulgaris Schard.) terhadap pertumbuhan bibit kelapa sawit. Penelitian ini dilaksanakan di area Pertanaman Masyarakat di Martubung. Metode yang digunakan adalah metode eksperimental dengan menggunakan Rancangan Acak Kelompok (RAK) 2 Faktorial. Faktor I adalah tingkat kematangan POC kulit semangka dengan 3 taraf yaitu : T0 = 0 hari, T1 = 2 minggu, dan T2 = 4 minggu. Faktor II adalah konsentrasi POC kulit semangka dengan 4 taraf yaitu : K1 = 5%, K2 = 10%, K3 = 20%, dan K4 = 40%. Data hasil pengamatan dianalisis dengan Analysis of Variance (ANOVA). Berdasarkan hasil dan pembahasan dapat disimpulkan bahwa tingkat kematangan, konsentrasi, dan interaksi POC kulit semangka tidak berpengaruh positif terhadap tinggi bibit, namun POC kulit semangka dapat meningkatkan pertumbuhan tinggi bibit kelapa sawit di pre nursery dan pertumbuhan tinggi bibit yang terbaik ada pada perlakuan T2K3 (dengan tingkat kematangan POC kulit semangka umur 4 minggu dan dosis POC kulit semangka 20%) dengan rataan 20,61 cm. Tingkat kematangan, konsentrasi, dan interaksi POC kulit semangka juga tidak berpengaruh positif terhadap diameter batang, namun POC kulit semangka dapat meningkatkan ukuran diameter batang bibit kelapa sawit di pre nursery dan diameter batang yang terbaik ada pada perlakuan T0K1 (dengan tingkat kematangan POC kulit semangka 0 hari dan dosis POC kulit semangka 5%) dengan rataan 6,54 cm. Tingkat kematangan, konsentrasi, dan interaksi POC kulit semangka juga tidak berpengaruh positif terhadap jumlah daun, namun POC kulit semangka dapat meningkatkan jumlah daun bibit kelapa sawit di pre nursery dan pertumbuhan jumlah daun yang terbaik ada pada perlakuan T0K1 (dengan tingkat kematangan POC kulit semangka 0 hari dan dosis POC kulit semangka 5%) dengan rataan 2,78 cm.

Vetiver (Vetiveria zizanioides L.) plants are able to protect the soil from erosion and are tolerant of salinity stress. However, at high salinity levels, vetiver plants show a decreasing growth. The application of gibberelin is expected to increase the growth of vetiver in salinity stress conditions. The purpose of this study was to evaluate the growth responsiveness and production of vetiver the application of gibberelin under salinity stress conditions. This research was conducted in the green house of the Faculty of Agiculture, Universitas Sumatera Utara, Medan. This study used a non-factorial completely randomized design, namely the salinity stress (S) which consisted of 3 levels, each treatment was repeated 3 times, so that 9 treatment combinations were obtained: the concentration of gibberelin was 0 (no treatment), 50 ppm and 100 ppm.

Abstract. Pratomo B, Lisnawita, Nisa TC, Basyuni M. 2021. Short Communication: Digital identification approach to characterize Hevea brasiliensis leaves. Biodiversitas 22: 1006-1013. The purity of clones is a key factor to obtain uniform growth of Hevea brasiliensis Muell Arg in the field. Crop uniformity has an impact on production patterns that can be predicted in latex content. Basically, H. brasiliensis tree leaves show similarities to each other such as the color, texture, or shape of the leaves. Identification of clones that have been very common by the morphology of H. brasiliensis leaves. This study links the results of previous research on digital methods used. A total of 27 clones were sampled in this study which came from the garden collection of entres, which can be used as a source of elders for assisted pollination or source of planting materials for the needs of production-scale seeds in the field. Here, we used a database of 540 leaves from 27 clones and 10 quantitative characters to address these issues The analysis data used a randomized complete block design (RCBD) factorial. The result showed the identification method digitally on characterizing of leaves by using Software Adobe Photoshop, depicting that the characteristics contained in H. brasiliensis leaves are very proper to be used as the first character in identifying an H. brasiliensis clone. The present work provided a piece of important information on the characterization of H. brasiliensis leaves to enhance the selection of parent clones.

This study clarified the variation and role of physical and chemical characteristics of the H. brasiliensis projected acetyl-CoA carboxylase genes. The detectable similarity and joining projected acetyl-CoA carboxylase genes of H. brasiliensis in the dendrogram may be the outcome of tropical environmental. Six projected acetyl-CoA carboxylase genes from H. Brasiliensis collected from NCBI. The NCBI locus number of the protein sequence utilized in this study was determined. The physical and chemical properties of acetyl-CoA carboxylase from H.brasiliensis. The factors were calculated the designate number of protein, number of amino acids, molecular weight, theoretical isoelectric point values, the total number of atoms, extinction coefficients, estimated half-life, instability index, aliphatic index and grand average of hydropathicity.

Saat ini kebutuhan bahan papan terus mengalami peningkatan biasanya bahan papan ini merupakan bahan yang diperoleh dari hutan. Salah satu Tujuan yang dilakukan adalah dengan menggantikan kayu dengan material lain seperti papan partikel untuk memenuhi kebutuhan kayu pada bidang perumahan. Metode yang digunakan dalam penelitian ini adalah cangkang dan batang kelapa sawit dan resin. Cangkang dan batang yang telah dihaluskan dicampur dalam wadah dan diaduk sesuai Komposisi. Berdasarkan penelitian yang telah dilakukan dapat diambil kesimpulan bahwa hasil penelitian menunjukkan adanya pengaruh kecuali pada daya serap air dan modulus of elasticity pada komposisi papan partikel. Pada pengukuran sifat fisis dan mekanis didapatkan papan dengan kualitas terbaik pada komposisi 90%:10% dengan nilai kerapatan sebesar 1,10 g/cm³, nilai kadar air 1,01%, nilai pengembangan tebal terbaik sebesar 0,56%, nilai MOE terbaik sebesar 30,515 kg/cm² pada komposisi 90%:10%, dan nilai MOR sebesar 236,99 kg/cm². Hasil penelitian menunjukkan bahwa pengujian sifat fisis dan mekanis papan partikel telah memenuhi standard SNI 03-2105-2006.

This research aims to determined the effect of industry wastes of Palm Oil and PDAM to the river water quality use parameters of the water caracteristic, parameters that using to determine the water Pollution level as ; Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Mangan (Mn), Aluminium (Al), Besi (Fe), Timbal (Pb), turbidity, and water quality standards of Sungai Ular. This research was carried out in Sungai Ular to Serdang Bedagai Regency and Deli Serdang Regency and next in The Laboratorium Socfindo Seed Production & Laboratories (SSPL) in September - October 2020. The research method is used a Purposive sampling. At all the stations of Sungai Ular stations that have determined in this research are result of parameters from BOD are into to the class II all of stations, and concentration of COD all of stations into to the class, and another parameters are still below the threshold to all of stations so can said from averaged of parameters all of stations, the Water quality of Sungai Ular are still classified below the threshold in accordance with government regulation number 82 of 2001. Keywords: Quality, River, Pollution, Industry.

Introduction: This study aims to determine the growth response of Mucuna bracteata cuttings to the concentration and duration of soaking shallot extract. Materials and Methods: This study used a factorial Randomized Block Design (RBD) with two factors, namely: shallot extract concentration (P) consists of 4 levels, include P0= untreated, P1= 10 ml, P2= 20 ml, P3= 30 ml, meanwhile the soaking time (Q) consists of 4 levels, such as Q0= momentarily dipping, Q1= 15 minutes, Q2= 30 minutes, Q3= 45 minutes. The data was processed by ANOVA and if significant, then further tested with Duncan Multiple Range Test (DMRT) at the rate of 5%. Results: The concentration of shallot extract, soaking time and their interaction had a very significant effect on the survival percentage of Mucuna bracteata D.C. cuttings. The highest survival percentage of cuttings of Mucuna bracteata on the effect of shallot extract concentration and soaking time was obtained in the P0Q0, P0Q1, and P3Q2 treatments after the lid was opened at 4 weeks after planting. In the number of leaves also had significant effect in the interaction of two factors

Penelitian ini menggunakan metode eksperimen dengan Rancangan Acak Kelompok Non Faktorial. Faktor yang digunakanadalah PK0 100% Tanah + 0% pupuk kandang (ayam dan kambing), PK1 50% Tanah + 50% (25% + 25%) pupuk kandang (ayam dan kambing), dan PK2 25% Tanah + 75% (37,5% + 37,5%) pupuk kandang (ayam dan kambing). Dengan metode tersebut dapat diperoleh 8 ulangan dengan 3 perlakuan, maka diperoleh 24 petakan dengan perpetak ukuran 1x1 meter dan jarak tanam 15 cm/pokokmaka diperoleh perpetak 36 tanaman perpetak dengan pengambilan sampel 15% maka di peroleh 6 tanaman sample untuk pengamatan, maka total sample untuk pengamatan yaitu 144 tanaman dan total keseluruhan tanaman adalah 864 tanaman. Data dianalisis menggunakan sidik ragam (Analisis of variance) dengan uji lanjut Beda Nyata Terkecil (Uji BNT). Berdasarkan hasil pengamatan dapat disimpulkan bahwa pemberian pupuk kandang (ayam dan kambing) berpengaruh pada pertumbuhan tanaman Mucuna bracteata pada minggu ke 6 sampai ke 8, dan jumlah daun pada tanaman Mucuna bracteata pada MST ke 8 serta berat kering, pada perlakuan PK1 50% Tanah + 50% pupuk kandang (25% pupuk kandang ayam + 25% pupuk kandang kambing). Tetapi untuk panjang akar nilai yang tertingi pada PK0 100% tanah + 0% pupuk kandang (ayam dan kambing) karena tanaman melakukan mekanisme memperpanjang akar untuk mencari unsur hara untuk mencukupi kebutuhannya selama 8 MST, dan pada berat basah tanaman akar nilai yang tertingi pada PK0 100% tanah + 0% pupuk kandang (ayam dan kambing) sebagai akibat dari pertambahan panjang akar tanaman tersebut.

The rubber plant (Hevea brasiliensis Mull. Arg.) is the only commercial source of natural rubber. The two-plate thin-layer chromatography (2P-TLC) method was used to analyse polyisoprenoid alcohols consisting of dolichols and polyprenols from the leaves of the rubber plant H. brasiliensis as clone entres. There were 33 clones based on the metabolism of latex and whether they were quick starters, slow starters, or unidentified. The distribution of polyisoprenoids in H. brasiliensis clones were mostly detected as type II in the presence of both polyprenols and dolichol with 31 clones from 33 clone entres. Two clones, IRR 5 and PB 217, were classified as type III with a majority of polyprenols as compared to dolichols. Furthermore, type I of polyisoprenoidswith a dominance of dolichols over polyprenols were not detected. Additionally, it was found that the total lipid content range was largest in IRR 220 and the smallest in RRIM 712. Furthermore, the number of polyisoprenoids was the highest in RRIM 921 and the lowest in PB 217. Moreover, polyprenols and dolichols were abundantly detected in H brasiliensis leaves. Larger amounts of polyprenols (C45-C80), as compared to other clones, were found in IRCA 804. Likewise, the highest content of dolichols (C75-C115) was observed in GT 1. However, the dendrogram analysis did not differentiate between quick starter and slow starter clones, suggesting the similarities of clones based on the data on polyisoprenoids of carbon chain length. (C) 2020 Friends Science Publishers