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INDONESIA
Jurnal Floratek
Published by Universitas Syiah Kuala
ISSN : 19072686     EISSN : 25979108     DOI : -
Core Subject : Education,
Education
Jurnal Floratek terbit dua kali dalam setahun, edisi April dan Oktober. Berisi gagasan konseptual dan hasil penelitian original yang relevan dengan bidang Pertanian dan Biologi di Indonesia.
Arjuna Subject : -
Articles 11 Documents
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Search results for , issue "Vol 7, No 1 (2012)" : 11 Documents clear
KEEFEKTIFAN CENDAWAN Beauveria bassiana Vuill TERHADAP MORTALITAS KEPIK HIJAU Nezara viridula L. PADA STADIA NIMFA DAN IMAGO Hasnah Hasnah; Susanna Susanna; Husin Sably
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

The objectives of the study was to obtain an effective concentration of B. bassiana to control pests of N. Viridula.  Experiment was performed at Laboratory of Pest, Agriculture Faculty, Syiah Kuala University Darussalam, Banda Aceh. The experiment used a  faktorial completely randomized design (CRD).  Factors evaluated were (1) concentration of B. bassiana consisting of three levels: 2 gL-1 distilled water, 4 gL-1 distilled water, and 6 gL-1 distilled water, and (2) stadia of N. viridula consisting of 2 levels: third instar nymphs and imago. Variable observed were incubation period, mortality of N. viridula, time of death, and percentage of feeding inhibition. The results showed that concentration of B. bassiana and stadia of N. viridula had no effect on incubation period of fungus B. bassiana. Concentration of B. bassiana affected mortality and time of death of nymph and imago N. viridula. Concentration of fungus B. bassiana affected percentage of feeding inhibition. In general, fungus B. bassiana had a high potential on controlling insect N. viridula. 
PENGARUH JENIS PUPUK TERHADAP PERTUMBUHAN DAN HASIL BEBERAPA VARIETAS JAGUNG MANIS Syafruddin Syafruddin; Nurhayati Nurhayati; Ratna Wati
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

A 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. 
SIFAT KIMIA DAN EVALUASI SENSORI BUBUK KOPI ARABIKA Rita Hayati; Ainun Marliah; Farnia Rosita
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Study of chemical characteristics and sensory evaluation of e Arabica coffee pawder (Coffea arabica L.) has been performed. The results showed that chemical characteristics significantly differed among varieties tested.  Variety Gayo 1 had water content 13.39%, the highest water content compared to Variety P88 and Variety Bergendal. Varieties Gayo 1 had fat content 5.66% and was significantly different from other two varieties. Caffeine levels were significantly different among varieties; Varieties P88  0.95%, Varieties Gayo 1 0.99%, Varieties Bergendal 1.09% but all varieties had met a standard caffeine content of coffee ground. Sensory evaluation using a quantitative descriptive analysis showed that coffee powder of Variety Gayo 1 was received by panelists on attributes of flavor, taste, and overall acceptance, while coffee powder of Variety Bergendal had a low value of the attributes tested.
INFEKTIVITAS MIKORIZA PADA BERBAGAI JENIS TANAMAN INANG DAN BEBERAPA JENIS SUMBER INOKULUM Nurhayati Nurhayati
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

This research was aimed to study types of host plants and sources of inoculum on mycorrhizal infectiveness. The study was conducted at Screenhouse and Soil Chemistry Laboratory of Agriculture Faculty, Unsyiah, and Soil Biology Laboratory of  Agriculture Faculty, USU from July 2011 to November 2011. This research used a randomized complete block design (RCBD) factorial of two factors with three replications. Factors studied were several types of host plants and some types of sources of inoculum. Host factors consisted of A1 = kudzu, A2 = soybean, A3 = corn and factors source of inoculum consisted of B1 = spore from rhizosfer kudju, B2 = r spores from soybean, B3 = spores from corn.  Variables observed were degree of mycorrhizal infection.  Results showed that there was an interaction between host plant species and inoculums sources of mycorrhizal infectivity. The best infectivity was a combination of host plant kudzu and source of spore from kudzu.
PERTUMBUHAN DAN HASIL DUA VARIETAS TOMAT AKIBAT PERLAKUAN JENIS PUPUK Puspita Dewi; Jumini Jumini
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Objectives of the study were to determine effects of organic fertilizer on growth and yield of two varieties of tomato as well as the interaction between both factors. Factors studied were 1) types of organic fertilizer, consisted of 3 levels: manure, compost and green manure and 2) varieties of tomatoes, consisted of two levels: Viccario F1 and San Marino F1. Variables observed were plant height and stem diameter at ages 15, 30 and 45 days after transplanting (DAT), fruit numbers, and fruit weight for 5 times of harvest. The results showed that types of organic fertilizer exerted significant effects on plant height at age of 15 and 30 DAT, plant stem diameter at age 15 and 30 DAT, fruit numbers and fruit weight.  The best growth of tomato was on green manure.  Varieties also exerted significant effects on plant height at ages 15, 30 and 45 DAT, stem diameter at ages 30 and 45 DAT,  fruit numbers and fruit weight, but no significant effect on stem diameter at age 15 DAT. The best growth and fruit numbers wer found at Viccario, while the highest fruit weight was found at variety San Marino. There was a significant interaction between types of organic fertilizer and tomato varieties on plant height at age 45 DAT, but no significant interaction on other variables. The best plant growth was found at the combination of Viccario-manure.
BIOLOGI HAMA KUTU PUTIH PEPAYA (Paracoccus marginatus) PADA TANAMAN PEPAYA Hartati Oktarina; Nur Pramayudi
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Mealybug (Paracoccus marginatus) is a new pest attacted papaya that effect quantity and quality of papaya production. The research was aimed at study of biology and development of papaya mealy bug; from an egg stadium to mature bug. The experiment was conducted at plant field experiment of Agriculture Faculty, Syiah Kuala University from May to November 2011. To understand the biology and development of mealy bug, a survey and collection of P. Marginatus were conducted for mass production in laboratory, then they were invested on healthy papaya leaf. In the future the result of this study will be used as a pest control recommendation. 
PENGARUH PEMBUANGAN PUCUK DAN TUNAS KETIAK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN CABAI Muhammad Hatta
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

This study was aimed to examine effects of terminal bud and auxiliary shoot removals on growth and yield of chili pepper. The experiment was arranged in a randomized complete block design (RGD) with 3 replications. Factors studied were trimming of terminal bud and trimming of auxiliary shoots.   Results showed that removal of terminal bud had no effect on plant growth, represented by stem diameter (P = 0.6517) and yields, represented by the number of fruits (P = 0.9806) and length of fruit (P = 1128). Similarly, removal of auxiliary shoots also had no effect on stem diameter (P = 0.7302), number of fruits (P = 0.4210), and length of fruit (P = 0.9878).
TOKSISITAS EKSTRAK DAUN Lantana camara L. TERHADAP HAMA Plutella xylostella L. Hendrival Hendrival; Khaidir Khaidir
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Toxicity n-hexane leaf extract Lantana camara and its active fractions were evaluated for their insecticidal activit  ies against Plutella xylostella larvae. The method included sample extraction, fractionation, and toxicity examination of leaf extract L. camara and its active fractions against P. xylostella larvae.  The extracts were applied by residue method.  Fractionation of active compounds from extract n-hexane was conducted by a vacuum liquid chromatography by using a stationary phase of silicate gel GF254­ and mobile phase of n-hexane, etil acetate, and methanol which produced five  fractions, that is fractions A, B, C, D, and E.  Leaf extract of  L. camara and its fractions possessed an insecticidal activity  causing mortality to P. xylostella larvae. The results showed that LC50 of crude extract at 3 and 4 day after applications was 0,936 and 0,651%, while LC50 of fractions A = 0,386 and 0,178%; fractions C = 0,327 and 0,132; fractions D = 0,617 and 0,318%; fractions E = 0,622 and 0,244%. 
SIFAT TANAH DAN AIR YANG TERPENGARUH TSUNAMI DI KECAMATAN LHOKNGA KABUPATEN ACEH BESAR Syakur Syakur; Hairul Basri; Sufardi Sufardi; Muhammad Hatta
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

Lhoknga Sub District was one of regions experiencing earthquake and tsunami disaster occurred on 26 December 2004. The aims of the research were to evaluate soil characteristics, to study land suitability and to propose recommendation of land use and rehabilitation of the tsunami affected agricultural area in Lhoknga Sub District. The result showed that soil textures were varied from very coarse at the area near to the coastline to rather fine at the area far from the coast. The soil structures of topsoil was generally plate and blocky, while that of subsoil was generally massive. The quality of irrigation water in was still suitable for crops, the pH of water was neutral and low in salinity (0,4 mS cm-1). The water quality of wells was high (good) and water quality of drainage and surface water was low (rather bad). Water quality of wells was good enough, indicated by low water salinity (0,26-0,78 mS cm-1) and  low of SAR value. The recommendations for land reclamation were (1) cleaning and repairing of irrigation and drainage channel  (2) leaching of salinity in topsoil from soil profile by flooding method (basin irrigation) or furrow irrigation,  (3) constructing the ditches for cultivation in managing the excess of salinity, (4) establishing ditches for paddy, and (5) removing the sediment above the topsoil.
INTERSEPSI AIR HUJAN PADA TANAMAN KOPI RAKYAT DI DESA KEBET, KECAMATAN BEBESEN, KABUPATEN ACEH TENGAH Hairul Basri Basri; Manfarizah Manfarizah; Andi Salasa
Jurnal Floratek Vol 7, No 1 (2012)
Publisher : Program Studi Agroteknologi, Fakultas Pertanian, Universitas Syiah Kuala

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Abstract

The purpose of the study was to determine the amount of rainfall interception on coffee plants, and obtain a relationship between rainfall and interception of coffee plant. The research was conducted in a coffee plantation in Kebet Village, Bebesen Sub-District, Central Aceh District. The experiment was carried out from February to March 2011. The method used in this research was a descriptive method, using direct measurements in the field. The samples of coffee plants were 4 years and 15 years old. The results showed that rainfall interception of 4 years-coffee-crop was 56.87% of the total rainfall of 82.50 mm  and  that of 15-year-old coffee plants was 72.12%, of total rainfall of 133.50 mm. The greater the rainfall was, the greater the interception would be, as well as the older age of the coffee plant was, the greater the percentage of interception was recorded. The average proportion of rainfall as the water passes (throughfall) was greater than the proportion of rainfall that becomes stream stems (stemflow), due to high density of leaves covering the stem. Relationship between rainfall and interception on coffee plants was a natural logarithm equation: (1) for 4 years coffee crop,  I = 3.440 ln (Pg) + 0.650 and R2 = 0.56; (2) for 15 years old coffee crop, I = 2.992 ln (Pg) + 2.371 and R2 = 0.69.

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