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Ellen L. Panggabean
Faculty of Agriculture, University of Medan Area
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Physics Transportation

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Growth Response and Crop Production (Brassica Juncea L.) Against Watering Time Interval at Various Hydroponics Media Muhammad Zailani; Retno Astuti Kuswardani; Ellen L. Panggabean
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 1 (2019): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i1.131

Abstract

This study aims to determine the Response Growth and Production of Crops (Brassica juncea L.) Against Watering Time Interval In Various Hydroponics Media. The research was conducted at the experimental gardens of Faculty of Agriculture, Faculty of Agriculture, University of Medan Area, located on No. Pond Street. 1 Medan Estate. This research was conducted from October 2013 until December 2013. The design used was RAL Factorial, with 2 replications, 10 combinations. The first factor of the hydroponic planting medium is: M1: Frying Roots, M2: Coconut Coir Powder, M3: Fryer Seal, M4: Rokwool, and M5: Sawdust, the second factor is the time interval: I1: 3 hours a day I2: 5 hours a day, starting from 08:00 a.m to 06:00 p.m. The result of this research indicates that the treatment of watering liquid fertilizer with different time interval does not show a real effect on the growth of mustard plants, Media treatment used on hydroponic systems have an influence very evident on the parameters of plant height, leaf number, leaf area, production weight and significant effect on leaf level parameters, influential planting medium and have the best number is M3 (fuel husk). Interaction interval of watering time on various hydroponic media did not have a significant effect on observed parameters, namely: plant height, leaf number, wet weight, and weight of production, while the leaf color parameter had significant effect on leaf width.
Sensitivity of Larva Spodoptera litura Against the Density of Spores of Fungi Metarhizium anisopliae on the Onion Plant Red (Allium cepa) in the Laboratory Brijayanti Halawa; Azwana Azwana; Ellen L. Panggabean
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 1 (2019): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i1.133

Abstract

Sensitivity of Larva Spodoptera litura Against the Density of Spores of Metarhizium anisopliae Fungi On the Red Onion Plant ", aims to determine the density of Metarhizium anisopliae spores which are effective in controlling the spodoptera litura pests that attack onion plants. This research was conducted by using Randomized Complete Random (RAL) Factorial ie instar larvae and spore density. The parameters observed were behavioral and morphological changes as well as percentage mortality of Spodoptera litura larvae. The results showed that: Changes in behavior and morphology of insects in the form of slow movement, decreased appetite and larval body surface covered by the fungus is light green and dark green. The density of spores of M. anisopliae to S. litura pest has a very significant effect on the percentage of S. litura mortality since the age of 1-9 HSA. The percentage of S. litura mortality tended to increase with higher spore density of M. anisopliae and instar 1-3 being more sensitive instar than instar 4-6 Spodoptera litura larvae. Mortality of S. litura is most prevalent in I1M3 treatment (instar 1-3 with spore density 106).
The Effectiveness of Castration And Seed Sources on the Growth and Production of Strawberry Plants (Fragaria x ananassa var duchesne) Susilawati Hasibuan; Syahbudin Hasibuan; Ellen L. Panggabean
Budapest International Research in Exact Sciences (BirEx) Journal Vol 1, No 1 (2019): Budapest International Research in Exact Sciences, January
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birex.v1i1.134

Abstract

Research on The Effectivity Of Castration And Seed Sources To The Growth And Production Of Strawberry Crops (Fragaria x ananassa var duchesne). Objectives to determine the effect of castration and seed sources in encouraging the growth and production of strawberry plants (Fragaria x ananassa var duchesne). The research was conducted at Fruit Plant Experiment Center of Berastagi Fruit Experiment Garden, Medan Berastagi road 60 kilometer, Karo district with ± 1200 meters above sea level. The study was conducted from May 2014 until August 2014, using Factorial Randomized Block Design (RAK), with four replications, 6 combinations to obtain 24 plant plots from all combinations and replications. The first factor to be tested was castration ie K0 = without castration, K1 = using castration. The second factor that tested is Source of seed of strawberry plant that is S1 = source of seed from seedling, S2 = source of seed from Sulur in book 1, S3 = source of seed from Sulur in book 2. The results showed that the castration was very significant in the observation of fruit weight of cultivation with 13.11 gram (K1S1) weight and no significant effect on production per plot, but the average yield of fruit weight per plot showed a high yield of 176.13 grams (K1S1). In general, this study showed castration treatment had an effect in increasing strawberry fruit weight to all sources of seeds
Co-Authors Azwana Azwana Brijayanti Halawa Muhammad Zailani Retno Astuti Kuswardani Susilawati Hasibuan Syahbudin Hasibuan