Jurnal Floratek
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KERAGAAN PERTUMBUHAN DAN KOMPONEN HASIL BEBERAPA VARIETAS UNGGUL KEDELAI DI ACEH BESAR
No full textSoybean is an important food for national food security. Many soybean varieties have been released by the government, but only few were adopted by farmers. The purpose of this study was to identify superior soybean varieties that are adaptive in Aceh Besar, Aceh Province. The experiment was conducted in Village Limpok, Aceh Besar during dry season in 2013 and arranged in a randomized block design with 3 replications. The result showed that variety Kaba and Detam had very good vegetative growth performance. The fastest flowering varieties were Detam and Burangrang, while variety Gema, Tanggamus, and Orba were the slowest flowering. Variety Kaba and Orba had the highest productive node, while the least was Grobogan. Variety Kaba, Kipas Merah Bireuen, and Orba had the most productive branches, while local variety Bener Meriah and Grobogan had the least productive branches. Grobogan had the greatest seed size, followed by Burangrang and Anjasmoro. Kipas Merah Bireuen and Sinabung had the highest seed weight per plant but having the smallest seeds. Sinabung was the most adaptive in Aceh Besar
PENGARUH KOMPOSISI MEDIA TANAM DAN KONSENTRASI PUPUK DAUN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SELADA (Lactuca sativa L.)
No full textThis study was aimed at determining the appropriate growing medium composition and foliar fertilizer concentration and their interaction on growth and yield of lettuce. The experiment was arranged in a randomized complete block design (RCBD), consisting of two factors, i.e. the growing media composition and foliar fertilizer concentration. The first factor consisted of the composition of the soil and manure by volume ratio (3:1, 3:2, and 3:3) and the second factor consisted of foliar fertilizer concentrations (0, 2, 4 mL/L of water ). The results showed that the growing media composition soil+manure (3:3) was the best in increasing crop height, leaves number, leaf length, leaf width and yield at 35 day after planting, while the best concentration for those parameters was 4 mL/L of water. Based on the interaction, the best leaf number of lettuce was found at growing media composition soil+manure (3:3) with the concentration of foliar fertilizer 4 mL/L of water
PENGARUH JENIS KAKAO DAN KOMBINASI ZAT PENGATUR TUMBUH TERHADAP INDUKSI EMBRIO SOMATIK SECARA IN VITRO
No full textIn an effort to increase the productivity of cocoa in Aceh, the government has carried out a cocoa plantation revitalization program for plants aged 25-30 years. The revitalization effort was constrained by the unavailability of quality seedlings. Alternatively, cocoa seedlings can be made available through vegetative propagations or through tissue culture techniques. Based on those facts, we have studied the inducing of callus and somatic embryos of cacao clones that were adaptive and highly productive in Aceh. The experiment was arranged in a completely randomized design, consisted of two factors. The first factor was the cacao genotype, having red and green fruits skin. The second factor consisted of six combinations of growth regulators 2,4-D and kinetin. The results showed that genotype of explants origin from cocoa red flowers responded very well in the formation of callus and somatic embryo formation. There was a significant interaction between genotype and growth regulator combinations on the explants in the number of somatic embryos formed. The best combination of concentrations growth regulator in response to somatic embryo in SCG (Secondary Callus Growth) medium was 3 mgL-1 2,4 D and 1 mgL-1 kinetin for explants from cocoa red flowers, and 1 mgL-1 2,4 D and 0 mgL-1 kinetin for explants origin from cacao green flowers
PENGARUH PEMBERIAN HARA FOSFOR TERHADAP STATUS HARA FOSFOR JARINGAN, PRODUKSI DAN KUALITAS BUAH MANGGIS (Garcinia mangostana L.)
No full textThe objectives of this research were to determine phosphorous nutrient tissue, yield, and quality of mangosteen in diverse of phosphorous doses. The experiment was arranged in a randomized complete block design. Phosphorous doses evaluated were 0, 300, 600, 900, and 1200 g P/plant. The result showed that phosphorous fertilization increased of concentration mangosteen phosphorous tissue and yield per plant. However, phosphorous did not increase growth and fruits quality of mangosteen
DAYA HAMBAT RIZOBAKTERI KANDIDAT AGENS BIOKONTROL TERHADAP PERTUMBUHAN KOLONI PATOGEN PHYTOPHTHORA CAPSICI SECARA IN VITRO
No full textThe utilization of biocontrol agents as an alternative to synthetic pesticides becomes widespread as the increase of awareness to negative effects of synthetic pesticides. The objectives of this research were to isolate rhizobacteria from tomato plant rhizosphere and to characterize effective rhizobacteria isolates to deter growth of Phytopthora capsici colony. The rhizobacteria was isolated from healthy tomato plant rhizosphere, and then antagonism nature to pathogen was evaluated by double culture method. Deterrent ability of the rhizobacteria was measured based on resistance zone formed due to the presence of the biocontrol agents. Among 57 isolates, 18 were potential for further evaluation. Deterrent ability test of the 18 isolates resulted in 3 isolates which were very promising to be developed as biocontrol agents to control seed borne pathogens. They were RBBM36, RBBM18 and RBBM35
PENGARUH JUMLAH RUAS SETEK DAN DOSIS UREA TERHADAP PERTUMBUHAN SETEK PUCUK NILAM (Pogostemon cablin Benth.)
No full textThe objectives of this research were to study effects of cutting internode numbers and urea dosages, and interaction between them on pogostemon bud cutting growth. This research was done at Kajhu Village, Baitussalam Sub District, Aceh Besar District, Aceh Province, from February 15th to April 15th 2011. Experiment was arranged according to Factorial Randomized Complete Block Design 3 x 3, with 3 replicates. Each of replications was consisted of 3 plants, resulting 81 experimental units. The first factor was cutting internode numbers, consisted of 3 levels, i.e. 2, 3 and 4 internodes. The second factor was urea dosage, also consisted of 3 levels, i.e. 1, 2 and 3 g urea/cutting. All cuttings were planted in polybags; one cutting per polybag, filled with 5 kg of soil, with one internode was inserted into the soil. The result showed that there were highly significant interactions between cutting internode numbers and urea dosages on pogostemon cutting leaves and bud numbers at 60 days after planting, which means that cuttings with different internode numbers responded differently to urea dosage increases. The best one was cutting with 4 internode numbers and the best urea dosage was 2 g/cutting. The best combination was cutting with 2 internodes and 2 g urea/cutting
EFEK ALELOPATI Ageratum conyzoides TERHADAP PERTUMBUHAN SAWI
No full textThis study was aimed at determining concentration of allelopathy Ageratum conyzoides that suppresses growth of mustard. The research was conducted in Weeds Laboratory and Screen House Agriculture Faculty, University of Syiah Kuala, Darussalam, Banda Aceh from December 2010 to February 2011. The experiment was arranged in a completely randomized design (CRD) with 6 treatments and 4 replicates. Results showed that inhibition occurred at concentrations of 100 gL-1 at 10 HST on plant height, leaf number and dry weight of mustard plant. Optimum inhibitory concentration of the liquid squeezed leaves of A. conyzoides on mustard was at a concentration of 300 gL-1. At the highest concentration (500 g/l), A. conyzoides inhibited germination up to 100%
PENGARUH UMUR KECAMBAH DAN DOSIS PUPUK UREA TERHADAP PERTUMBUHAN BIBIT KAKAO
No full textCacao is an important plantation plant in Indonesia for its contribution to our income. The productivity of this plant still have a chance to be increased, with the improvement in culture technique. One limited information concerning the cacao cultivation technique is seedling ages and urea dosages when transplanting. The purposes of this research were to find out the effect of seedling ages, urea dosages, and interaction between them on cacao seedling growth at nursery. Research was conducted at Experimental Station of Agriculture Faculty, University of Syiah Kuala. Units of treatment were arranged according to Factorial Randomized Complete Block Design with 4 replicates, followed by Honestly Significant Different Test at the level of 5%. Seeds were extracted from 1/3 of cacao mature fruits at the center of the pod and germinated in germination box filled with sand and covered by wet towel. Growing medium used was top soil:manure:sand=2:1:1 (by volume). Variables observed were seedling height, stem diameter, leaf number and area, primary root length, and wet and dry mass of seedling at 45, 60 75 and 90 days after transplanting. Results showed that there were significant interactions between treatments on all variables observed. The best combination was age of 10 days of seedling and dosage of 2 g urea per polybag
PENGARUH VARIETAS DAN KONSENTRASI PUPUK MAJEMUK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KUBIS BUNGA (Brassica oleracea L.)
No full textABSTRACTThe research was aimed at determining suitable varieties and concentrations of compound fertilizer RapidGro 01 on growth and yield of cauliflower. Experiment was arranged in a randomized complete block design (RCBD) 3x3 with 3 replications. There were two factors studied, i.e. 1) varieties consisted of 3 levels (PM 126 F1, White Shot and Cauliflower Tropica 45 Days) and 2) concentration of compound fertilizer RapidGro 01 consisted of 3 levels (2, 4, and 6 gL-1of water). Results showed that varieties significantly affected plant height at 30 days after planting, leaf numbers at 45 days after transplanting (DAT) and wet weight of flowers per plant, but did not significantly affect plant height at 15 and 45 DAT, leaf numbers at 15 and 30 DAT, root length and wet weight. The best variety was AM 126 F1. Concentrations of compound fertilizer RapidGro 01 did not significantly affect plant height and leaf numbers at 15, 30, and 45 DAT, root length, fresh weight per plant and wet weight per plant. There was no significant interaction between varieties and concentrations of compound fertilizer RapidaGro 01 on all variables of growth and yield of cauliflower
PENGUJIAN PENGHAMBATAN AKTIVITAS MAKAN DARI EKSTRAK DAUN Lantana camara L. (Verbenaceae) TERHADAP LARVA Plutella xylostella L. (Lepidoptera: Yponomeutidae)
No full textResearch on antifeedant activity of n-hexane leaf extract Lantana camara and its active fractions were evaluated for their insecticidal activity against Plutella xylostella larvae. The method included extraction, fractionation, and examination antifeedant leaf extract L. camara and fractions active against P. xylostella larvae. Extract application was conducted using a residue feeding method. Fractionation of active compounds from extract n-hexane was conducted by liquid vacuum chromatography, using phase silent silicate gel GF254 and phase mobility n-hexane, ethyl acetate, and methanol (elusion gradient), which produce fractions A, B, C, D, and E. Extract leaf L. camara and fractions possessed antifeedant activity against P. xylostella larvae. Extract leaf L. camara at concentration of 1% caused larva antifeedant activity up to 78.47%. Fraction E caused a higher larva antifeedant activity (85,52%) than extract and other fractions did