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Sofia Demmassabu
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Agriculture, Biological Sciences & Forestry

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PEMBERIAN PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL PADA TANAMAN MENTIMUN (Cucumis sativus L.) Paul Worek; Beatrix Doodoh; Sofia Demmassabu
COCOS Vol. 10 No. 7 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25615

Abstract

ABSTRACT This study aims to determine the effect of concentration of liquid organic fertilizer (POC) on growth and yield on cucumber plants. This research was carried out in the village of Kolongan Tetempangan, Kalawat District, North Minahasa Regency for 2 months from July to August 2018. This research was conducted using the Completely Randomized Design method, with five treatments and four replications, namely the concentration of liquid organic fertilizer: 0 ml POC /2l water (P0), 2 ml POC /2l water (P1), 4 ml POC /2l water (P2), 6 ml POC /2l water (P3) and 8 ml POC /2l water (P4). Observations were made on each plant with observational variables, namely plant height, number of leaves, flowering time, number of flowers, number of fruits, fruit length, fruit diameter and fruit weight. The results showed that the administration of liquid organic fertilizer G Tonik has not given a significant effect on the growth of cucumber plants, but it has an effect on the production of cucumber plants in this case the fruit weight. Keywords : concentration, liquid organic fertilizer (POC), growth, hybrid cucumber
KONSENTRASI PACLOBUTRAZOL DAN PEMISKINAN MEDIA PADA PELESTARIAN IN VITRO TANAMAN KRISAN (Chrysanthemum morifolium Ramat) Sofia Demmassabu; Diane A. Kojoh; Yulie P. Arsyad
EUGENIA Vol. 17 No. 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3537

Abstract

ABSTRACT   Research was conducted  at biotechnology laboratory of Agriculture Faculty, Samratulangi University Manado since July 2009 until October 2009. The objective was to assess the effect of Paclobutrazol usage and MS media reducing in chrysan perpetuation through in vitro. The research was  designed in randomized complete designed  using factorial. First factor was basic media concentration of Murashige and Skoog with 2 concentration : M1 = 100% MS,  M2 = 10% MS and second factor was paclobutrazol with 4 concentration s which were  P0 = 0 ppm paclobutrazol (control), P1 = 1.0 ppm, P2 = 1.5 ppm, P3= 2.0 ppm,  and P4 = 2.5 ppm paclobutrazol.  The treatments were repeated ten times.  Observed variables were crysan tall, the amount of root and buds that was measured at the end of research. The result showed that 100 % MS media, addition of paclobutrazol obviously produced shorter chrysan, and less amount of roots and buds compare to media without paclobutrazol. Media with 10 % MS combine with   paclobutrazol 2.0 ppm produced shorter chrysan than media without paclobutrazol. The amount of roots and buds in media with paclobutrazol were not different with media  without paclobutrazol. Key words : Paclobutrazol, crysan
PERTUMBUHAN DAN HASIL PAPRIKA (Capsicum annuum var-grossum) PADA BEBERAPA JENIS NAUNGAN Stella M.T. Tulung; Sofia Demmassabu
EUGENIA Vol. 17 No. 2 (2011)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.17.2.2011.3538

Abstract

ABSTRACT   The objective of this research is to detect the influence of shade kinds to the  growth and yield of paprika and the suitable kinds of shades for paprika. Varieties Yolo Wonder was applied in this research and the research was located at Kakaskasen III, Kecamatan Tomohon Utara for four months.  The research was carried on through Randomized Group Design by using three types of treatments and six replicates.  The treatments were as follows:  without shade, using transparent plastic shade and  using stubble of paddy shade. Detected variable included: the height of the plant, leaf area, amount of the fruit, length, diametre and the weight of the fruit. The height of the plant measured every week since two weeks after planting  and the leaf area was measured according to the height of the plant. The amount, lenght, diametre and the weight of the fruit measured during the harvest time. The result of the research shows that diffrerent kinds of shades brings different influence to the growth and yield of paprika and the research shows that the suitable shade for the growth and yield of paprika is transparent plastic shade. Keyword: paprika, shade
Co-Authors Beatrix Doodoh Diane A. Kojoh Paul Worek Stella M.T. Tulung Yulie P. Arsyad