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All Journal Jurnal Biologi Tropis
Indayana Febriani Tanjung
Universitas Islam Negeri Sumatra Utara
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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The Effect of Growth Regulating Substances Giberelin on The Growth of Cucumber (Cucumis sativus) Weyni Iskandaria; Nindi Darmawanti; Siti Nur Annisa Boang Manalu; Indayana Febriani Tanjung; Febry Ramadhani Hasibuan
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.4603

Abstract

Cucumber is one of Indonesia's agricultural commodities which is in great demand by the public, but in an effort to fulfill the number of requests a way is needed to be able to increase the amount of production. One of them is the use of growth regulators in supporting the growth of cucumber seeds. Gibberellin is a growth regulator that stimulates the growth of plant stems and leaves. This study aims to determine the effect of using gibberellins on cucumber plants (Cucumis sativus). The method used in this study was direct testing with 4 treatments, namely 0 ppm, 150 ppm, 175 ppm and 200 ppm with each treatment being tested with 5 samples. The materials used in this study were cucumber seeds, sand, manure, water and the hormone gibberellin (GA3). The tools used are digital scales, measuring cups, label paper, scissors, ruler, tape measure, polybags and hoes. The results of the study found that in treatment VI (200 ppm) the hormone gibberellins had a more significant effect on the growth of cucumber seeds compared to treatments I (0 ppm), II (150 ppm and III (175 ppm).
Effectiveness of Garlic Extract Pesticide (Allium sativum) Against Leaf Films in Saws (Brassica juncean) Raja Siti Aisyah; Syaprina Anggraini; Zahwa Adiesty; Indayana Febriani Tanjung; Febry Ramadhani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i1.4612

Abstract

Indonesia has a large part of its territory in the form of agricultural land which results in some of its people working as farmers. Land processing and maintenance in the agricultural sector were found to be obstacles so that production decreased from what it should have been. This is the reason why the number of requests for crops cannot be fulfilled, which results in an increase in prices. The method used in a non-factorial Completely Randomized Design (CRD) by carrying out 4 comparisons of pesticide concentrations including K1 (10 cc of onion extract mixed with 90 ml of water), K2 (15 cc of onion extract mixed with 85 ml of water), K3 (20 cc of onion extract mixed with 80 ml of water), K4 (25 cc of onion extract mixed with 75 ml of water), K5 (30 cc of onion extract mixed with 70 ml of water). The materials used in this study included garlic extract and water. The tools used are hoes, soil testers, thermometers, gembor, measuring tools and dippers. The conclusion from this study was that the concentration comparison was carried out that the V treatment (30 cc + 70 ml liters of water) was effective in the use of natural garlic pesticides (Allium sativum) by reducing the number of leaf pests on mustard greens (Brassica juncean) by 23 individuals for 2 week of observation and 2 times of spraying.  
Co-Authors Febry Ramadhani Febry Ramadhani Hasibuan Nindi Darmawanti Raja Siti Aisyah Siti Nur Annisa Boang Manalu Syaprina Anggraini Weyni Iskandaria Zahwa Adiesty