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INDONESIA
AGROLOGIA : Jurnal Ilmu Budidaya Tanaman
Published by Universitas Pattimura
ISSN : 23017287     EISSN : 25809636     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
Agrologia: Journal of Plant Cultivation is a means of publicizing the results of research and articles. The scope of the study published in Agrologia includes: - Agronomy - Plant diseases and pests - Soil science - Environment
Arjuna Subject : -
Articles 6 Documents
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Search results for , issue "Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman" : 6 Documents clear
Effect of Sublethal Dose/Concentration on Various Insect Behaviors Victor George Siahaya
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1296

Abstract

Most of the studies on the impact of insecticides have always used acute toxicity with an indicator of death, whereas the lethal effect cannot fully determine the effect of the insecticide on insects. Overall, the effect of sublethal dose/concentration of insecticides can cause biological effects, disrupt egg number, laying period, larva and pupal weight, development period, life span and fertility rate, in addition to influencing feeding behavior, spawning period, locomotor system and reducing or increasing production and response to pheromones, physiological effects on the reproductive and immune systems and the nutritional status of insects. This suggests that the sublethal effect is very important to form the basis for analysis of insecticide risk. In addition, the sublethal effect also affects the presence of natural enemies and other useful insects, so it is hoped that more studies on their impact on non-target insects are expected.Keywords: biological effects, natural enemies, pheromones, sublethal effect
Analysis of Nutritional Composition of Five Growing Waxy Vegetable Varieties In West Halmahera Regency North Maluku Fitri Wahyu Wijayanti; Stevani B. Fara
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1297

Abstract

The wax vegetable plant (Saccharum edule) is a type of sugarcane plant, has many types and can be found in several regions in Indonesia. This study aims to determine the nutritional content of five varieties of vegetable Lilin cultivated in West Halmahera Regency North Maluku. This research is using experimental method. Using short white, long white, long white, red, short yellow and long yellow wax vegetables, which are cultivated in West Halmahera Regency, North Maluku. The variables observed included moisture content, fat content, protein content, ash and carbohydrate content. The results showed that the moisture content ranged from 87.59% - 91.76%, fat content ranged from 0.25% - 0.67%, protein content ranged from 3.19% - 4.17%, ash content ranged from 1, 40% - 1.56%, and the carbohydrate content ranges from 3.41% - 6.20%. In terms of nutritional content (fat, protein and carbohydrates), short yellow and long yellow varieties have a higher value.Keywords: Nutritional content, Candle Vegetables, West Halmahera
Use of Endophytic Trichoderma to Control Fruit Rot Phytophthora infestans, Growth and Yield in Tomato Malaky Wattimury; Johana Taribuka; Adelina Siregar
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1298

Abstract

Endophytic Trichoderma is a fungus found in plant tissue and has the potential as a plant biological control agent. The aim of this study was to study endophytic Trichoderma isolated from tomato roots, stems and leaves to control Phytophthora infestans fruit rot and growth and yield of tomato plants. The treatments that were tested were endophytic tricoderma isolated from the roots, stems and leaves of tomato plants and applied with doses of 50, 75, and 100 g per tomato plant, respectively. The experimental design used a completely randomized design with three replications. The observed variables were disease intensity, plant height, number of flowers formed, and number of fruits formed. The results showed that the endophytic Trichoderma used could control the pod rot disease of Phytophthora infestans as well as increase the growth and yield of tomato plants. Giving endophytic Trichodema from roots applied with a dose of 100 g is the best treatment because it can reduce disease intensity by 48.02%, while giving at a dose of 75 g per plant is the best treatment because it can increase plant height by 51.74%, the number of flowers formed amounted to 68.42% and the number of fruit formed was 74.70%.Keywords: Endophytic Tricoderma, Tomato, Phytophthora infestans.
Rice Lines (Oriza sativa L.) Selection on Some Agronomic Characters Miranda Ferwita Sari; Jaenudin Kartahadimaja; Destieka Ahyuni; Lina Budiarti
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1293

Abstract

Most of the Indonesian population uses rice as main source of carbohydrates. The need for rice increases every year, but rice production and rice harvest area decreases every year. One way to overcome this problem is using new variety that has high productivity. This research aims to determine the agronomic characters that can be used as character selection and to select the best lines based on the character selection. The research was conducted at the Seed Teaching Farm Field of Seed Technology Study Program, Politeknik Negeri Lampung in August - December 2020. The treatment design was arranged in randomized complete block design with 1 factor (line), 3 blocks, and 3 replications. The treatments tested were 6 lines of rice plants assembled by Politeknik Negeri Lampung, namely B1, B2, B3, B4, K, L2 lines with 2 comparison varieties Ciherang and Gilirang. The characters observed were plant height, total number of tillers, number of productive tillers, flowering age and harvest age. The data from the observations were processed with SAS software and the analysis of real variance was continued by using Duncan's Multiple Range Test (DMRT) with an error rate of 5%. The results of this research indicate that the characters of the total number of tillers and the number of productive tillers can be used as a selection character and the lines that have superior characters are the K and L2 lines.Keywords: Rice Lines, Agronomic Character, Selection 
The Effect of N in Organic + Inorganic Liquid Fertilizer on the Activity Ability and Antioxidant Properties of Tea Shoots (Camellia sinensis L. O. Kuntze) in the Rainy and Dry Season Zakarias Frans Mores Hukom
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1294

Abstract

Antioxidant is a term related to the activity ability and properties of the active ingredient.  The higher the ability of the antioxidant activity of an active ingredient, the stronger its antioxidant properties are to ward off various free radical compounds due to oxidative stress. The activity ability and antioxidant properties of tea shoots often fluctuate with changing seasons.  This study investigated the effect giving nitrogen levels in organic + inorganic liquid fertilizers on the ability of activity and antioxidant properties of tea shoots in different seasons. The experimental design used was a over season complete randomized block design consisting of 5 levels of fertilization concentration in the rainy and dry seasons. The results showed that the application of organic + inorganic liquid fertilizers without the addition of N concentration in the dry season had a significant effect on the antioxidant activity of tea shoots by 88.14%, and 34.15% higher than control plants in the rainy season and 41.81% more. Height of control plants in the dry season. The IC50 value of tea shoots in the rainy season and dry season has very strong antioxidant properties where the order of the antioxidant properties of the control plants < all concentrations of adding N to organic + inorganic liquid fertilizers < concentration of organic + inorganic liquid fertilizers without the addition of N.Keywords: Ability Antioxidant Activity, Organic + Inorganic Liquid Fertilizer, Tea shoots, Antioxidant Properties.
The Incidence and Severity of Downy Mildew Disease on Local Madurese Maize Crops in Sumenep district, East Java, Indonesia Syaiful Khoiri; Abdiatun Abdiatun; Khairatul Muhlisa; Achmad Amzeri; Dita Megasari
Agrologia Vol 10, No 1 (2021): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v10i1.1295

Abstract

In Madura island, corn is the main commodity that is widely planted with an area of 301,725 ha or about 30% of the area of maize in East Java. Madura Island has local cultivars, such as: Tambin, Talango, Guluk-guluk, Manding, and Kretek. Efforts to increase production are continuously being made, starting from improving varieties until managing plant pests. One of the main diseases in maize is downy mildew. However, information about the incidence, incidence, severity, and species that cause downy mildew in local cultivars has not been reported. So, this study aims to identify the causes of downy mildew in local cultivars of Madura and disease severity in the field. The research method is a survey on local maize centers. Sampling was done by using the diagonal sampling method. Each plant sample was observed for symptoms of disease and scoring to calculate the value of disease severity. Fungi identification was carried out by microscopic observation of the fungus. The results showed that the cause of downy mildew in Madura local maize in Sumenep Regency was P. maydis. The highest incidence, disease severity, and AUDPC value after 4 MST were found in Guluk-guluk cultivars in Padangdangan Village, but had the lowest disease progression rate values. Meanwhile, the highest rate of disease progression was found in the Manding cultivar in Mandala Village. Based on the resistance category, Talango cultivar had the best resistance when compared to other cultiva.Keywords: AUDPC, downy mildew, disease progress, Madurese maize, Peronosclerospora maydis

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