AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (AMA) (issn: 00845841) is a peer reviewed journal first published online after indexing scopus in 1982. AMA is published by Farm Machinery Industrial Research Corp and Shin-Norinsha Co. AMA publishes every subjects of general engineering and agricultural engineering.
WOS Indexed (2025)
27 Nov 2025 (Vol - 56 , Issue- 11 )
30 Nov 2025 (Vol - 56 , Issue 11 )
Aim and Scope :
AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (ISSN: 00845841) is a peer-reviewed journal. The journal covers Agricultural and Biological Sciences and all sort of engineering topic. the journal's scopes are in the following fields but not limited to:
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering
Optimization and characterization with antioxidant potential of C-phycocyanin from subaerial cyanobacteria
The current study investigated an effective way to extract C-phycocyanin and evaluate its antioxidant potential from the sub-aerial cyanobacteria. Two cyanobacterial species were isolated and identified as Oculatella crustae-formantes and Desertifilum dzianensis in order to standardise and characterize the Phycocyanin production from subaerial cyanobacteria and its antioxidant Potential. The specific growth rate and doubling time of the isolates were calculated. Sodium phosphate buffer (pH 7, 50mM) was found to be the most efficient buffer for C-phycocyanin yield. Further, the BG-11 medium under LED fluorescent red tube light was discovered to be the best optimization condition for enhancing C-phycocyanin synthesis from the isolates. Spectrophotometry technique and Fourier Infra red technique were utilised for the C-PC characterization. Additionally, the purified C-phycocyanin was evaluated for antioxidant activities. In both cases, the IC50value of C-PC is found to be higher than the standards used. This indicates the significant potential of sub-aerial cyanobacteria to produce highly purified phycocyanin with notable antioxidant properties, suggesting potential applications in the food and pharmaceutical industries.
An Ethnobotanical Investigation Into The Traditional Use Of Therapeutic Plants In Ain Temouchent, North-West Algeria.
To investigate the use of therapeutic herbs in Ain Temouchent, (Algeria), we interviewed 150 residents 95 women (63%) and 55 men (37%) utilizing a survey that is semi-structured. Participants were randomly selected without prior appointments. We collected primary data on plant names, parts used, preparation methods, usage categories, and diseases treated. Statistical analysis was performed using Microsoft Excel 2016 for Windows, and quantitative analysis utilized the indices RFC, UV, and IFC. Our study identified 66 medicinal plants used for various ailments, encompassing 62 genera and 29 families. The most notable families are Asteraceae and Lamiaceae (15% each), and Apiaceae (14%). Mentha spicata L. (0.35) was the most frequently cited species, followed by Citrus limon (L) Burm.f., Thymus vulgaris L. (0.33 each), Eucalyptus globulus Labill. (0.32), and Lavandula stoechas L. (0.31). The most widely utilized plant parts are leaves, fruits, and aerial parts, with oral administration having the highest prevalent method. Decoction and infusion are the primary preparation techniques. Informants showed the highest consensus on the use of these plants for respiratory (0.74) and digestive (0.61) diseases.
Screening of potato cultivars and management approaches for early blight disease caused by Alternaria alternata in Afghanistan
Potato crop encounters many foliar diseases like early blight caused by Alternaria alternata Fr. (Keissler) which drastically decrease tuber yield. Management of this disease remains as a challenge. The present studies were carried out at Nangarhar University Agriculture Faculty Research Farm in 2020 and at Bati kot in 2021. Ten different potato cultivars of Afghanistan were screened to recognize resistance level against early blight under artificial epiphytotic conditions. Parameters like temperature and relative humidity, disease incidence (DI), disease severity (DS), percent disease reduction, number of tubers per plant and tuber yield were recorded. Lowest DI was recorded in Sabzgul (16.53%) followed by Suria (22.45%) and Surkhgul (24.8%). Minimum DS was found in Surkhgul (46.90%) and Sabzgul (46.30%) that grouped in moderately susceptible category. The cultivars Surkhgul and Suria had similar average tuber numbers (7.00), but highest yield was obtained from Surkhgul (3.40 kg). The experiment on fungicidal cum biological management of early blight was conducted in 2020 at Behsood Farmers Learning and Research center (FLRC) of Behsood, Nangarhar, and at Bati kot in 2021. Out of eight treatments, maximum reduction of DI (47.84%) and DS (64.08%) was achieved by foliar spraying of fungicides Cymoxanil + Mancozeb. In addition, this fungicide contributed maximum tuber numbers (4.50) and highest yield (2.80 kg). It was followed by Azoxystrobin + Difenconazole (2.50 kg), and the bio-control with Trichoderma viride (2.40 kg) in terms of tuber yield. The study was the first of its kind carried out in Afghanistan.
Overview of the lichens of the Ouled Brahim region, Saida (Algeria).
Lichens are rather special living creatures belonging to the cryptogam phylum. In fact, a lichen is an original being resulting from a symbiosis between an alga and a fungus. The aim of our work is to carry out an inventory of the Ouled Brahim region (Saida). To do this, we used the [4] method, which consists of applying a transparent 20x50 cm survey grid to the bark of trees, starting one metre above the ground. This grid is cut into 10 cm2 squares. We collected 8 charts, four for each station (Mimouna and AinKsab). A total of two lichen genera were identified, presented by 4 different species.
Assessment of Body Activity and Rumination Time for Early Detection of Heat Stress in Dairy Cows
Heat stress is a major challenge facing the dairy industry, negatively impacting cow health, milk production, and reproductive performance. Early detection of heat stress is critical for implementing timely mitigation strategies. This study evaluated the use of body activity and rumination time measured by HR-Tag sensors for early detection of heat stress in lactating Holstein cows. Cows (n=100) were housed in a free-stall barn and monitored during summer months. HR-Tag sensors measured body activity (bouts/hr) and rumination time (min/hr). Ambient temperature and humidity were recorded to calculate temperature-humidity index (THI). Mixed linear models analyzed relationships between THI and cow activity and rumination. As the temperature-humidity index (THI) increased, rumination time decreased significantly (r = -0.56, P < 0.001), while activity levels increased (r = 0.43, P < 0.05). Compared to normal conditions (THI < 68), cows under mild heat stress (68 ≤ THI < 72) spent an average of 31.59 minutes less per day ruminating (6.16% reduction) and exhibited a 5.1% increase in activity level. Under moderate heat stress (72 ≤ THI < 80), rumination time decreased by 59.55 minutes (11.42% reduction), and activity levels increased by 14.31%. Severe heat stress (THI ≥ 80) had the most pronounced effects, with cows spending 104.26 minutes less per day ruminating (20.35% reduction) and exhibiting a 24.26% increase in activity level compared to normal conditions. Automated monitoring of body activity and rumination time, especially in high producing cows, allows early detection of heat stress before reductions in milk yield and health issues arise. This enables producers to implement cooling and management changes proactively to mitigate negative impacts of heat stress.