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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Pertanian
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 1,853 Documents
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Estimation Of The Carbon Potential In The Above Ground At The Stand Level Poles And Trees In Sentajo Protected Forest Pebriandi '; Evi Sribudiani; Mukhamadun '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Natural forest has many ecological functions which plays a vital role in preserving the ecosystem balance. One of them is to stabilize the climatic condition. This is linked with the forest capability to absorb carbondioxide in the photosynthesis process. The more carbondioxide absorbed and stored in the form of biomass carbon, the more it reduces greenhouse gas effect in the atmosphere. This research aimed to obtain information about the value of biomass and carbon content in the Sentajo Protected Forest. Above ground biomass estimation was done by establishing nine plots with the size 20 m x 20 m. Trees with dbh ≥ 10 cm were recorded in terms of diameter and identification species. Tree biomass was estimated by employing Ketterings et al, (2001). Sentajo Protected Forest  region has great potential in storing carbon stocks. The study results showed that carbon contain in Sentajo Protected Forest is 223,177 ton/ha.   Keywords : forest, carbon, biomass.
Inventarisasi Permudaan Meranti (Shorea spp.) Pada Arboretum Kawasan Universitas Riau Kota Pekanbaru Provinsi Riau Wahyu, Elvan; Sribudiani, Evi; Arlita, Tuti
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

Meranti (Shorea spp.) is an important commodity which is one of the major timber producing commercial plants in Indonesia. In worldwide trading, meranti group is divided into four major groups, namely: group of red meranti, yellow meranti group, white meranti group and group of turvy meranti. Purpose of the implementation of this study was to determine the availability, amount, and regeneration dominance of meranti (Shorea spp.) as well as a tree diagram in the profile Riau University Arboretum area. Techniques of data collection is done by using the method purposive sampling or transect lines. Entire observation contains regeneration sample plots, namely regeneration meranti much as 9 rods (2.76%) while  the  317  rods  (97.24%)  are  type  of  non  meranti.  Meranti  Shorea parvistipulata Heim  and  Shorea  parvifolia were found.  INP  at  a rate  of 0% seedling, sapling rate of 2.28%, 15.20% for poles and tree level of 57.03%.   Keyword : inventore, regeneration, meranti, arboretum
Pengaruh Pemberian Mulsa Organik Terhadap Sifat Fisik dan Kimia Tanah serta Pertumbuhan Akar Kelapa Sawit Antari, Rabisa; ', Wawan; Manurung, Gulat ME
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

Oil palm (Elaeis guineensis Jacq) is a multipurpose plant which occupies an important position generaly in agricultural sector and particularly in plantation sector. Bright prospects for palm oil commodity in the world encourage people to plant oil palm in acidic mineral soil, which could face some obstacles, on physical, chemical and biological soil properties. In the dry season, oil palm has the type of oil palm roots are shallow making it relatively less tolerant to drought. Because of these problems is an attempt to solve the problem in oil palm land by using organic mulch (oil palm empty fruit bunches, Calopogonium, palm midrib and ferns). This research has been carried out in the experimental farm of the Agriculture Faculty Riau University, from June to September 2012. The purpose of this study was to determine the effect of organic mulch on soil physical and chemical properties, as well as the root growth of palm oil using a randomized block design (RBD), that consists of 5 treatments and 3 replications. The results of this study shown that treated soil using organic mulch had the significant difference compare to soil without mulch in the whole observation parameters. Organic mulches can improve total pore space, C-organic, N-total, soil water content and soil temperature and decrease soil bulk density. It also, can increase the weight of the roots, root dry weight, root occupy and the plant root volume.  Keywords: Organic Mulch, Soil Physical and Chemical Properties, Palm Oil
Waktu Perendaman Benih Dengan Air Kelapa Mudaterhadap Pertumbuhan Bibit kakao (Theobroma cacao l.) Saputra, Sukemi Indra; Yoseva, Sri
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

This research aims to know the influence of seed soaking time with young coconut water on the growth of seedlings of cocoa (Theobroma cacao L.). This research has been carried out in the laboratories of the University Faculty of agriculture of Riau at Binawidya Panam 12.5 km kelurahan Simpang baru , kecamatan tampan, began from February until may 2013. This study used a Randomized Complete Design (RAL) consisting of 5 treatments (0, 6, 12, 18and 24) and three replicates. The parameters observed that high seeds, number of leaves, leaf area and stem diameter. Research results showed the cocoa seed soaking with influential real young coconut water to the seeds and leaves are wide, but has no effect against the real amount of leaf and stem diameter. Cocoa seed soaking treatment with young coconut water for 6 hours provides the best results against higher seeds parameter, the number of leaves and broad leaves. Cocoa seed soaking treatment with young coconut water for 18 hours, giving greater influence. Keywords : PGR, cacao seedling  
Pengaruh Komposisi Kompos Tkks, Abu Boiler dan Trichoderma Terhadap Pertanaman Kedelai Pada Sela Tegakan Kelapa Sawit Yang Telah Menghasilkan di Lahan Gambut Ricki Arianci; Nelvia '; Idwar '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

This research aims to obtain doses of the empty palm bunches of compost and ash of the boiler optimum for growth of soybean plant interposed in oil palm already produce in peat. This research conducted by using draft experimentally random group comprising nine of treatment and three of deut so acquired twenty seven units of the plot experiment. On the first of the plot unit experiment there were twenty plants and taken a sample of plants as many as five plant of the population of the plot at random to observation. Parameters used in this research is tall plant (cm), how many branches primary (strands), age flowering (day), the number pods, the number pods pithy, heavy dry 100 seeds of gram (g) and heavy dry of plot (g). The results showed that the high parameter, the number of primary branches of plants, flowering age, number of pods of pithy and dry weight of 100 seeds showed a different result is outcome real. However, on the parameter the number of pods and heavy dry of plot show a different outcome real. The best treatment in this research is treatment H ( 1,45 kg bunches of empty oil palm + 145 g ashes of the boilers + 2.9 g Trichoderma) of a plot that tends to increase high in plant, speed up the age of flowering, increase the number of pods and dry weight of the soybean plant. Key word : Empty Palm Bunches of Compost, Soybean, Peat Soil, Boiler, Trichoderma
Keragaan Hibrida Hasil Persilangan Cabai Besar X Cabai Keriting di Lahan Gambut Haice, Rika Neli; Tabrani, Gunawan; ', Deviona
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

The experiment was conducted on January 28 to june 30, 2013 in Peatland Experimental garden, Agriculture Faculty, University of Riau, Rimbo Panjang Village, Tambang district Kampar regency. The experimental design used was randomized block design consisting of 8 treatment in the 3 groups at different soil conditions that required 24 units of the experiment. Data were statistically analyzed using analysis of variance, followed by Duncan’s test New Multiple Range Test (DNMRT) at the level of 5%. Variables measured were the age flower appearance, age of harvest, plant height, dichotomous height, stem diameter, canopy width, fruit length, fruit diameter, weight per fruit and fruit weight per plant. The results showed that genotypes tested had adaptability and yield are quite good in peatland and different between genotypes. Genotype C-5 x C-120, C-5 x C-159 and TM 999 has a plant height, larger stem diameter, day to flowering and harvesting are faster. Dichotomous high owned by genotype         C-5 x C-159, C-19x C-120 and TM 999, while the long pieces owned by genotype C-5 x C-159 and C-19 x C-120 and weight per fruit and weight highest fruit per plant owned by genotype C-5 x C-120.   Keyword : Capsicum annum, peatland and yield
Uji Pertumbuhan dan Produksi Beberapa Genotipe Tanaman Tomat (Lycopersicum esculentum Mill.) di Dataran Rendah Silvia, Rini; ', Adiwirman; Zuhry, Elza
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

cultivated tomato varieties those well adapted to the growing environment. Varieties have different levels of sensitivity to environmental conditions. The result will be reach the maximum level when cultured in a suitable environment. The objective of this research was to find the genotypes of tomato that has good growth and yield in the low land. This research use Completely Block Randomized Design (CBRD) that consists of 6 treatments and 3 replications. These treatments consist of 6 genotypes, those IPB T34-7-7, IPB T3-8-10, IPB 2201-5-8b, IPB T64-2-2(1), Karina and  Ratna. The result of this experiments suggest those the genotype significantly affect (days to flowering, harvesting time, plant height, stem diameter, weight per fruit, fruit length, fruit diameter, fruit flesh thickness, number of fruit cavities, and total weight per plant), affect number of fruit cavities however genotype did not significantly. The experimental result showed those genotypes IPB T3-8-10 has the highest total fruit weight (701.1 g) compared to Ratna and Karina. Genotypes IPB 2201-5-8b has the lowest total fruit weight (174.0 g).   Key words : Growth, Lycopersicum esculentum, genotypes, low level land
Pemberian Kompos Ampas Tahu dan Urine Sapi Pada Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis jacq) Roni Tua; Sampoerno '; Edison Anom
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

Palm Oil plant (Elaeis guineensis Jacq) is one of the most important crops which is plays an important role for Indonesia as a mainstay for export commodities and commodities that can increase the income of Indonesian society. Nursery activities essentially instrumental in the preparation of plant material (seeds) for planting in the field, so the breeding activities must be managed properly. Provision of compost fertilizer on the media used in oil palm seedlings is expected to add the availability of macro and micro nutrients in the soil, so it can increase the biological soil microbes and earthworms  better. To have a good quality seeds, there is ne option through regulatory substances growing plants. The use regulatory substances growing plants on nursery synthetic or naturally aims to enhance the growth of seedlings. One of the regulatory substances growing plants is cow’s urine, in addition to relatively easily obtainable also simple to use. Based on these results it can be concluded that the subtances of cow urine and tofu compost generally showed different results is not apparent after a statistical analysis on the parameters except the ratio of canopy and root dry weight of seedlings. Giving cow urine at a concentration of 40% and compost tofu 225 g / plant has not followed the maximum results in all parameters tested.   Keywords: palm seeds,compost, cow urine.
Uji Biofungisida Pelet Berbahan Dasar Pelepah Kelapa Sawit Yang Mengandung Isolat Trichoderma spp. Terhadap Jamur Ganoderma boninense Pat. Secara In Vitro Roy Ibrahim; Yetti Elfina; Rahmi Dewi
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

Basal stem rot (BSR) disease caused by Ganoderma spp.. The most of solution is using chemical pesticides and it was hazardous to environment and human health. The other way is using biological agent Trichoderma spp. in the form of biofungicide pellet. The aims of this research was to know the best influence of biofungicide pellet in controlling pathogen G. boninense of oil palm plant by in vitro. This research was done at Plant Pathology Laboratory of Agriculture Faculty and Nanotechnology Material Laboratory of Mathematics and Natural Science Faculty, University of Riau from May until July 2013. Experimental study was conducted using completly randomized design with 5 treatment and 4 replications. The treatment were application of biofungicide pellet is T0= Without isolate Trichoderma spp., T1= biofungicide pellet T. pseudokoningii, T2= biofungicide pellet T. koningii, T3= biofungicide pellet T. harzianum, T4= biofungicide pellet T. viride). Data obtained from the observations were statistically analyzed using analysis of variance, followed by Duncan's New Multiple Range Test (DNMRT). The result showed that biofungicide pellet containing isolate of Trichoderma spp. showing the different of patogen G. boninense by in vitro. Biofungicide pellet of T. harzianum has the higher result arround 58,84% and spores arround 16,47 x 106 than T. pseudokoningii, T. koningii and T. viride. Keyword: Palm Midrib, Isolat Trichoderma Spp, Mushrooms
Test of Some Concentration of Piper Aduncum L. Fruit Flour Extract to Control Nettle Caterpillar Setora nitens Walker (Lepidoptera;limacodidae) at Oil Palm of Plant (Elaeis guineensis jacq) Rudi Gunarso; Rusli Rustam; Jeltje Hennie Laoh
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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Abstract

Nettle Caterpillar Setora nitens is a major pest on oil palm. Chemical control to nettle caterpillar Setora nitens has some negative impacts, such as pest resistance, pest resurgence, and environmental pollution. The use of botanical insecticides, such as Piper aduncum L. is one of solutions to decrease the use of synthetic chemical insecticides. The purpose of this research is to obtain the concentration of Piper aduncum L. fruit flour extract which is able and exact to control nettle caterpillar Setora nitens pest at the oil palm plant. This research was conducted in field using Completely Randomized Design (CRD) with 5 treatments and 4 repetitions. The treatment concentrations of Piper aduncum L. fruit flour extract are 0 g/l of water, 25 g/l of water, 50 g/l of water, 75 g/l of water, and 100 g/l of water. The Piper aduncum L. fruit flour extract concentration 100 g/l of water is able to control nettle caterpillar Setora nitens pest with total mortality of 85%. The exact concentration needed to kill 95% nettle caterpillar Setora nitens pest is 32,1% or equivalent to 321 g/l of water. However, it is not yet effective because the effective and exact concentration to kill 95% of insect test more than 10% or equivalent to 100 g/l of water. Keyword: Oil Palm (Elaeis guineensis Jacq), Nettle Caterpillar Setora nitens Walker, Piper aduncum L.

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