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PENGGUNAAN BERBAGAI JENIS BAHAN AMELIORAN TERHADAP SIFAT KIMIA BAHAN TANAH GAMBUT HEMIK
No full textABSTRACTThe study was aimed at determining kinds of ameliorants that increase fertility on Hemic Peats Soil. The experiment was arranged in a completely randomized design (CRD) with 6 treatments and 4 replications. The result showed that the ameliorants increased pH (H2O), exchangeable cations (K, Na, Ca, Mg) and base saturation. Sawdust had the highest ability to increase base saturation, K, and Na. Lime had the highest ability to increase pH (H2O), Ca, and Mg. Sawdust increased fertility hemic peats soil better than lime
PENGGUNAAN POLYETHYLENE GLYCOLE SEBAGAI MEDIA SIMULASI CEKAMAN KEKERINGAN TERHADAP VIABILITAS DAN VIGOR BEBERAPA VARIETAS BENIH KACANG TANAH (Arachis hypogaea L.) PADA STADIA PERKECAMBAHAN
No full textThis study was aimed at determining peanut varieties that are tolerant to drought stress and assessing the effectiveness of the use of PEG 4000 as a media simulation to drought stress. Experiment was arranged in a Completely Randomized Design (CRD) factorial 4 x 4, repeated three times. First factor was variety, consisted of four levels, namely Tuban, Bima, Bison and Local Aceh. Second factor was PEG concentration, consisted of 4 levels, namely control, 3.5%, 11.6%, and 18.1%. Variables measured were maximum growth potential, germination rate, relative growth rate, vigor index, germination value, root length, hypocotyl length, and seedling dry weight. The results showed that varieties exerted significant effects on maximum growth potential, germination rate, relative growth rate, root length, and hypocotyl length. PEG concentration exerted significant effects on maximum growth potential, germination rate, growth velocity, relative vigor index, germination value, root length, hypocotyl length, and seedling dry weight. There were interactions between varieties and PEG concentration on relative growth rate, root length, and hypocotyl length of groundnut seeds. Local variety of Aceh was recommended as a tolerant variety to drought stress. Bison was not tolerant to drought stress. Bima was recommended as a moderate tolerant variety to drought, while Tuban was a tolerant variety to drought
PEUBAH LAJU TUMBUH RELATIF DAN PROTEIN BERPERAN PENTING DALAM MENINGKATKAN KUALITAS BENIH KEDELAI (Glycine max L. Merr)
No full textVariables of seed quality are correlated each others, especially in storage. This fact needs investigation to predict main variables for measuring seed quality at storage. The objectives of this study were to investigate the main variables on growth analysis and seed quality using path analysis in production of extension seed. The field trial was carried out at Sebapo Experimental Station, Jambi and laboratory works were conducted in the Center for Post Harvest Research and Development, The Ministry of Agriculture and Center for Forest Research and Development, The Ministry of Forestry, Bogor from April until December 2010. The experimental design used was an unformatted design. The research showed that relative growth rate and protein were the main variables to improve soybean seed quality
KAJIAN WARNA BUAH DAN UKURAN BENIH TERHADAP VIABILITAS BENIH KOPI ARABIKA (Coffea arabica L.) VARIETAS GAYO 1
No full textABSTRACTThe purpose of this study was to examine seed viabilities of Arabica Coffee, variety Gayo 1 which was different in color of the fruits and in size of the seeds. The study was also aimed at examining interactions between fruit color and seed size on seed viabilities. Experiment was arranged in a randomized complete block design with three replications. Factors studied were 1) fruit color consisted of three levels, namely, bright red, dark red, and yellowish green and 2) seed size consisted of large seeds, medium, small. Results showed that fruit color significantly affected germination rate, seedling growth rate, prompt germination, the time required to reach 50% germination (T50) and dry weight of normal seedlings. Seed size significantly affected germination rate, seedling growth rate, prompt germination, T50, and dry weight of normal seedlings. The best viability was found in the seeds derived from bright red fruits and small sized seeds
INDUKSI EMBRIO SOMATIK DARI TANAMAN KAKAO ADAPTIVE ACEH MENGGUNAKAN EKSPLAN BUNGA SERTA ZAT PENGATUR TUMBUH PICLORAM
No full textIn order to fulfill the cocoa revitalization program, relatively large quantities of seedling are needed. Tissue culture is one of the alternative techniques for vegetative propagation that produce the large numbers of seedlings and uniform in a relatively short time, and also does not depend on the season. A preliminary study to induce callus and embryo somatic cocoa clones adaptive in Aceh has been carried out using immature flower parts of cocoa. The result showed that picloram was able to produce somatic embryos of staminode of various explants. Callus growth began to appear after two weeks on staminode, and then were subcultured into the same medium to produce secondary somatic embryos
KEMAMPUAN ANTAGONIS Trichoderma sp. TERHADAP BEBERAPA JAMUR PATOGEN IN VITRO
No full textPathogens often cause disease in plants, causing losses both in quality and quantity, and frequently can cause death on plants cultivated. Biological control begin to be selected in control of pathogens. Antagonist agent Trichoderma is known to control fungal pathogens causing plant diseases. This study looked over inhibition effects of Trichoderma sp. against pathogenic fungi; C. capsici, Fusarium sp. and S. rolfsii. This research was conducted at Laboratory of Plant Pathology Faculty of Agriculture, Syiah Kuala University from April to August 2012. The study began with isolation of the pathogen obtained from chili and soybean crops infected in the field.. Pathogenic fungi isolated were Colletotrichum capsici, Fusarium sp. and Sclerotium rolfsii. Variables observed were wide and diameter colony of Trichoderma sp., diameter colony of pathogens, and the percentage of inhibition. The results showed that Trichoderma sp., had ability to inhibit the growth of pathogen Colletotrichum capsici, Fusarium sp. and Sclerotium rolfsii in vitro. The highest percentage of inhibition of Trichoderma sp. was 68,2% against Colletotrichum capsici, followed by 53,9% against Fusarium sp., and the lowest inhibition was against Sclerotium rolfsii (35.5%)
PERKEMBANGAN SPODOPTERA LITURA F. (LEPIDOPTERA: NOCTUIDAE) PADA KEDELAI
No full textABSTRACTA research on behavior of pest S. litura on two varieties of soybean has been done in Blang Manyak Village, Sawang Sub district, North Aceh District from JanuaryMay 2013. The research was arranged in a field experiment with two treatments of soybean varieties, that is Kipas Merah and Anjasmoro. Each treatment was repeated 20 times to obtain 40 units of the experiment. Variables measured included damage intensity of S. litura, trichome density of leaves, yield components, and resistance evaluation. The relationships between yield components and damage intensity of S. litura were analyzed with regression and correlation. The results showed that damage intensity of S. litura on Kipas Merah was lower than that on Anjasmoro. Loss of soybean yield components on both varieties was influenced by the damage intensity of S. litura. There was a negative correlation between damage intensity of S. litura and soybean yield components on both varieties. Kipas Merah was moderately resistant and Anjasmoro was susceptible against S. litura. Resistance differences of both varieties were influenced by trichomes density of the leaves
KEEFEKTIFAN EKSTRAK DAUN PARE (Momordica charantia) DALAM MENGENDALIKAN Crocidokomia pavonana F. PADA TANAMAN SAWI
No full textThe purpose of this study was to obtain effective concentrations of leaf extracts of bitter melon in controllingCrocidolomia pavonanaon mustard (Brassia junceaLinn). The experiment was conducted at Laboratory of Plant Pests and Diseases, Faculty of Agricultural Kuala University, Banda Aceh. The study took place from August to November 2010. The experiment was arranged in a Completely Randomized Design (CRD), with six concentration of 0, 5, 10, 15, 20, and 25 ml/L solution. Each treatment was repeated 4 times to obtain 24 units of the experiment. Variables observed were mortality of larvaeC. pavonana, formed pupa percentage, emerging imago percentage and feeding deterrent percentage. The results showed that application of leaf extract ofM. charatiacould controlC. pavonanaon mustard. The higher concentration of the leaf extract was given, the more effective control was againstC. pavonanaon mustard plant. The use of leaf extractsM. charantiain concentration of 20% was able to controlC. pavonanaup to 60%
PENGARUH JENIS PUPUK TERHADAP PERTUMBUHAN DAN HASIL BEBERAPA VARIETAS JAGUNG MANIS
No full textA research was conducted at Experimental Farm of Faculty of Agriculture, Syiah Kuala University in February Mei 2011. The objectives of the research were to determine effect of kind of fertilizer on growth and yield of several sweet corn varieties and also to know interaction between both factors mentioned. The experiment was performed using a randomized complete block design (RCBD), 3 x 3 with 3 replications. There were two factors studied, namely kinds of fertilizer, consisting of 3 levels: organic fertilizer, NPK and liquid organic fertilizer NASA. The second factor was varieties consisting of 3 levels: Bonanza, Manise, and Jago F1. The results showed that kinds of fertilizer exerted highly significant effects on diameter of bottom stem at age 45 day after planting (DAP), number of leaves at 45 DAP, leaf length at age 30 and 45 DAP and exerted a significant effect on ear length without cornhusk. The highest growth and yield of sweet corn was found in NPK fertilizer treatment. Varieties of sweet corn exerted highly significant effects on plant height age 15 DAP, diameter of bottom stem at age 30 and 45 DAP, number of leaf at age 15 DAP, leaf width at age 15, 30, and 45 DAP and exerted significant effects on ear length without cornhusk, ear diameter without cornhusk, ear weight per bed with border plant, ear weight per bed without border plant, ear weight with cornhusk and plant height at age 30 and 40 DAP, diameter of bottom stem at age 15 DAP, number of leaf at age 45 DAP, leaf length at age 15 and 45 DAP. The highest of growth and yield was found at Variety Bonanza. Additionally, there was no interaction between kinsd of fertilizer and several varieties of sweet corn on growth and yield of all variables observed
PENGARUH JARAK TANAM HEKSAGONAL TERHADAP PERTUMBUHAN DAN HASIL TIGA VARIETAS PADI
No full textABSTRACTThe objective of this study was to examine hexagonal plant spacing on growth and yield of three varieties of rice. In addition, this study was also aimed to examine interactions between the hexagonal plant spacing and the varieties on growth and yield of rice plants. The experiment applied a split plot design with four replications. Factors studied were (1) variety, placed as a main plot and (2) hexagonal plant spacing, placed as subplot. The results showed that effect of plant spacing on productive tiller number varied, depending on variety. In Pandan Wangi and Ciherang varieties, productive tiller numbers did not differ between plant spacing of 21 cm from a spacing of 25 cm. In contrast, in line Cot Irie, productive tiller of 25 cm plant spacing outnumbered that of plant spacing of 21 cm. Effect of plant spacing on panicle length was consistent on all varieties tested. Rice panicle length did not differ between plant spacing of 21 cm and 25 cm. Effect of plant spacing on potential yield per hectare was also consistent across all varieties tested. Plant spacing of 21 cm provided a potential yield per ha which was not significantly different from plant spacing of 25 cm. Line Cot Irie provided panicle length better than varieties Pandan Wangi and Ciherang. Line Cot Irie also provided the highest yield potential per hectare, while panicle length and potential yield per ha of Ciherang were not significantly different from Pandan Wangi