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Search results for , issue "Vol. 2 No. 2 (2013)" : 5 Documents clear
TANGGAP BIBIT KARET (Hevea brasiliensis Mull. Arg) TERHADAP PEMBERIAN MIKORIZA VESIKULAR ARBUSKULAR DAN PUPUK FOSFOR DI POLYBAG Rubber Seedling Response (Hevea Brasiliensis Mull. Arg) To The Application Of Vesicular Arbuscular Mycorrhizae and Phosphorus F Elis Kartika; Helmi Salim; . Fahrizal
Bioplantae Vol. 2 No. 2 (2013)
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This research was conducted to determine the response of rubber seedlings to the application of vesicular arbuscular Mycorrhiza (VAM) and phosphorus (P). The design used in this study was completely randomized design (CRD) with two factors: VAM and phosphorus doses. The treatment is VAM doses consisting of 3 levels of mycorrhiza, that is, without mycorrhizae, 10 g/polybag , 20 g/polybag and the provision of phosphorus which consists of 5 levels i.e. without phosphorus, 25% of the recommended dose, 50% of the recommended dose, 75% of the recommended dose , 100% of the recommended dose. Each treatment was repeated 3 times so that there are 45 units of the experiment. Thevariables observed were seedlings height, seedling, diameter, total leaf area, leaf number, root dry weight, shoot dry weight, and percentage of mycorrhizal infection. The results showed that the mycorrhizal 10 g/polybag and 75% of phosphorus of the recommended dose is the best dosage on the growth of rubber seedlings.Key words : Rubber seedling, VAM, Phosphorus
Agroteknologi Konservasi untuk Meningkatkan Kualitas Tanah dan Produktivitas Kentang di Kabupaten Kerinci Provinsi Jambi (Agrotechnology Conservation To Improve Soil Quality and Potatoes Productivity In Kerinci District, Jambi Provinci) Henny H.; Itang Ahmad Mahbub; . Arzita
Bioplantae Vol. 2 No. 2 (2013)
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Potato is a prime horticultural commodities for Kerinci District with production centers in the volcanic highlands of Kerinci Mount, Jambi Province. Less of physical and chemical properties of the soil, excessive fertilizers and pesticides chemical were caused potato low productivity anddeclined soil quality. The objectives of this research were to determine the potato agrotechnology that can improve soil quality and potato productivity in the Sub District of Kayu Aro, Kerinci District, Jambi Province. Potato agrotechnology were studied through small of experimental plots in Gunung Labu Village by a randomized block design with 13 treatments (agro-potato : ridges across the slope, a quality seeds, dose of lime, manure and chemical fertilizers according to the recommendations provided). Data collected include before and after of treatment of soil properties and productivity of potato. Results of the research showed that planting potatoes in ridges across the slope with 0.5 tons of Dolomite lime, 10.0 tons of manure, 150.0 kg of Urea, 150.0 kg of ZA, 25.00 kg of SP-36 and 20.00 kg KCl per hectare were sufficient to obtain optimal productivity of potato (39.52-37.0 kg/plot, equivalent 32.93-30.91 t/ha) and improved soil chemical properties of Andisol Gunung Labu Village (especially pH, base saturation and exchangeable bases) in the Western Sub District of Kayu Aro, Kerinci District .Key Words: Soil quality, agrotechnology
Regenerasi Embriosomatik Tengkawang (Shorea stenoptera Burck.) Pada beberapa Konsentarsi Zat Pengatur Tumbuh GA3 dan BAP ( Somatic Embryos Regeneration of Tengkawang (Shorea stenoptera Burck.) at Various Concentrations of Plant Growth Regulator GA3 and BA . Neliyati
Bioplantae Vol. 2 No. 2 (2013)
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This research was aimed to indentify the effect of varies type and concentration of plant growth regulators for induce callus embryo somatic regeneration from Tengkawang plantlets. The type of plant growth regulators are GA3 and BAP and the concentration of GA3 are 0.1, 0.5 and 1.0 ppm and BAP are 1.0, 3.0, 5.0 ppm. The result of this experiment showed all treatment could induced the regeneration of callus somatic embryos to form a new root organs but failure to induced shoot formation. The highest percentage of root formation was achieved at plant growth regulator BAP 3.0 ppm. Culture which failure to regenerate the new organ, still induced callus with compact structure and at GA3 treatment the colour. Was dominan with sulfur colour dan brown at BAP treatment..Key word: Tengkawang , growth regulator,regenaration
PENGARUH WAKTU PENYIANGAN TERHADAP PERTUMBUHAN DAN HASIL PADI (Oryza sativa L.) YANG DIBUDIDAYAKAN SECARA SRI (The System of Rice Intensification) (The Effect Of Weeding Time Toward The Growth of Paddy at System Of Rice Intensification) . Buhaira
Bioplantae Vol. 2 No. 2 (2013)
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This research aim is to find out the time of weeding for better growth and yield of rice cultivated which is used SRI method. Research was conducted on wet land located on Koto Panjang Ikur Koto (KPIK) village, Koto Tangah District, Padang City. Experiment was arranged in a randomized block design with nine times replication. Time of weeding comprised three levels, namely: a week before planting and a week after planting, one and three weeks after planting, and two and four weeks after planting. Variables observed were growth (number of tillers, leaf area index (LAI), averaged net assimilation rate (NAR), averaged crop growth rate (CGR), yield components (number of productive tillers, percentage of empty grain per tiller, filled grain weight per tiller, and 1000 seeds weight) and GKG (drygrain milled) yield per hectare. Data were analyzed using analysis of variance. Significant variables were then analyzed using Honest Significant Difference (HSD). Results showed that time of weeding had significant effect on growth and yield of rice cultivated using SRI method. Best growth and highest yield were obtained by weeding application in two and four weeks after planting.Key words: SRI, weed, weeding.
Potensi Keanekaragaman Hayati, Iklim Mikro dan Serapan Karbon pada Ruang Terbuka Hijau Kampus Mendalo Universitas Jambi (Biodiversity Potential, Micro Climate and Carbon Uptake at The Green Area of Jambi University Campus at Mendalo) . Nursanti; Elly Indra Swari
Bioplantae Vol. 2 No. 2 (2013)
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This research purpose is to evaluate the potential of biological diversity, micro climate and carbon uptake at the green area of Jambi University Campus. It’s used purposive random sampling. The result showed that there are 34 type of trees with various diameter. Among the trees there are Dalbergia latifolia, Fagraea fragrans and Palaguium gutta, which is classified to be protected. The green area of Jambi University Campus especially at green strip could decrased the temperature about 2.00 C.Key Words: Carbon, green area, biodiversity.

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