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)
13 Dec 2025 (Vol - 56 , Issue- 12 )
31 Dec 2025 (Vol - 56 , Issue 12 )
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
In vitro screening of different essential oils against Alternaria solani causing early blight of potato
Potato (Solanum tuberosum L.) is a significant cash and staple crop in Meghalaya, contributing to both local food security and agricultural economies. However, its cultivation faces persistent challenges from fungal diseases, among which early blight, caused primarily by Alternaria solani and occasionally by Alternaria alternata, stands out as a major constraint to production. This disease manifests as necrotic lesions with concentric rings on leaves, stems, and tubers, leading to premature defoliation, reduced photosynthetic capacity, and substantial yield losses. In the present study, an early blight pathogen, Alternaria solani, was isolated from infected potato plants collected from fields in the vicinity of the College of Post Graduate Studies in Agricultural Sciences (CPGS-AS), Umiam, Meghalaya. The isolation and morphological identification of this native putative pathogen were followed by in vitro screening against a range of essential oils to evaluate their antifungal efficacy. Among various essential oils evaluated via the poisoned food technique, clove oil demonstrated complete (100%) inhibition of the pathogen at all concentrations (500, 1000, and 1500 ppm), followed by ginger oil at higher concentrations. This effort aims to identify effective, eco-friendly alternatives to synthetic fungicides for the sustainable management of early blight, tailored to the specific pathogen prevalent in the local agroecological conditions of the region.
RADIOGRAPHIC MORPHOMETRIC MEASUREMENT OF URINARY SYSTEM IN HEALTHY DOGS FOLLOWING INTRAVENOUS UROGRAPHY USING NON-IONIC AND IONIC CONTRAST AGENTS
Urinary tract affections in canines are usually associated with variation in renal and bladder size that are indicative of associated disease. So, morphometic measurements help to distinguish between normal and diseased urinary system, guide diagnostic and surgical interventions alongwith monitoring of gradual post treatment recovery. Therefore, the present study was undertaken to determine normal radiographic morphometric measurement of canine urinary system following intravenous urography using non-ionic (iohexol) and ionic (sodium and meglumine diatrizoate) contrast agents for obtaining reference values. Twelve apparently healthy canines were randomly divided into NICA and ICA group consisting of six animals of either sex in each. Both the contrast agents were administered at the same dose rate i.e.1100 mg I/kg body weight and diluted with an equal amount of 5% dextrose saline solution and infused intravenously over a period of 10-15 minutes under general anaesthesia. Subsequently, ventro-dorsal/lateral radiographs were taken at 5, 15, 30 minutes intervals. The morphometric measurement of kidney length and width, ureter length and diameter, urinary bladder length, width and length of second lumbar vertebrae and its correlation with size of kidney and ureter was done using the in-built calipers in the CR system. Non-significant differences were observed in the radiographic morphometric measurement of the left and right kidney, left and right ureter and urinary bladder between groups NICA and ICA. Urethra could not be visualized in any of the radiographs. Therefore, the present study provides information about the normal radiographic morphometric measurements of the canine urinary system which may be helpful to the practicing veterinarians and clinicians as reference values.
Dissecting Quality Trait Diversity in Nutrient-Enriched Rice Lines Through Principal Component and Genetic Diversity Analyses
The present investigation was conducted during the wet season of 2024 at Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh, to assess principal component analysis (PCA) and genetic diversity among fourteen nutrient-rich rice genotypes evaluated in a randomized block design. PCA revealed that the first four principal components had eigenvalues greater than one and together accounted for 71.81% of the total variation. PC1 (24.95% variation) was primarily influenced by days to flowering (DTF), head rice recovery (HRR), grain yield (GY), plant height (PH), and amylose content (AMY), while PC2 (20.80%) was associated with panicle length (PL) and γ-aminobutyric acid (GABA). PC4 contributed 11.20% of the variability, with major loadings from number of tillers (NT), panicle per square meter (PSQM), and zinc content (Zn). Cluster analysis grouped the genotypes into three clusters: Cluster I and Cluster II contained six genotypes each, and Cluster III comprised two genotypes. Cluster I genotypes exhibited higher mean values for DTF, HRR, PH, NT, PSQM, and AMY, primarily representing yield-attributing traits. In contrast, Cluster III genotypes showed early flowering along with higher mean values for PL, Zn, Grain protein (P), and GABA, representing yield and quality-enhancing traits. Genotypes from these clusters, possessing complementary and desirable attributes, can serve as potential donors in future hybridization programs aimed at developing nutrient-rich, high-yielding rice varieties.
Building Resilience: Adoption of Climate-Smart Livestock Practices in Diverse Agro-Climatic Zones of Central India
Climate change has emerged as a critical threat to livestock-based livelihoods in India, particularly in agro-ecologically diverse states like Madhya Pradesh. This study explores the adoption of climate-resilient livestock practices among large ruminant farmers across 11 agro-climatic zones of Madhya Pradesh. A multi-stage random sampling method was employed to collect data from 220 large ruminant farmers. Adoption of 36 climate-smart practices was assessed using a three-point continuum scale and quantified through a Climate Resilient Adoption Index. The overall adoption index was 49.67%, indicating a moderate adoption level. Most farmers were categorized as “partially adopted,” reflecting growing awareness but also revealing gaps in knowledge, access, and infrastructure. Frequently adopted practices included providing bedding in winter, breed selection based on local suitability, and ensuring water availability during heat stress. However, adoption of technical interventions such as sodium sulfate supplementation and silage crop identification was negligible. The study highlights the need for targeted extension strategies, institutional support, and farmer-centric interventions to enhance climate resilience. Younger and more educated farmers showed higher adoption levels, emphasizing the importance of awareness and capacity-building initiatives. These insights can guide the formulation of evidence-based, region-specific strategies to strengthen the adaptive capacity of livestock farmers in climate-vulnerable regions of Central India.
Impact Assessment of Phase Manuring on the Water Quality Parameters and Growth Potential of Labeo rohita (Hamilton, 1822)
The study was conducted for a period of 90 days, to investigate the “Impact assessment of phase manuring on the water quality parameters and growth potential of Labeo rohita (Hamilton 1822)”. A total of 120 fishes were stocked having mean length 2.8cm and mean weight 2.50 gm were stocked randomly into 12 experimental and distributed as 10 fish in each FRP tanks. Whole experiment was of 4 different treatments T1(Cowdung 1.5 kg/month @ 15 ton / ha / year), T2 (Cowdung 375 / g / week @ 15 ton / ha / year), T3 (Vermicompost 1.5 kg/month @ 10 ton/ha/year) and T4 (Vermicompost 375 g/week @ 10 ton/ha/year), and having three replication of each treatment. During the experiment, values of water quality parameter such as Temperature, pH, dissolved oxygen, CO2, alkalinity and hardness were found within optimal range which was 30.46±0.18 to 27.58±0.40, 8.61±0.19 to 8.17±0.14, 6.00±0.11 to 5.13±0.24, 2.83±0.16 to 2.00±0.01, 165.26±3.54 to 153.60±1.97 and 161.73±2.19 to 154.50±2.22. Fish growth parameters like Specific Growth Rate and Percent Weight Gain was found maximum in T4 (Vermicompost 375 g/week @ 10 ton/ha/year) which was 1.44±0.03 and 470.49±11.46 respectively. During the study of plankton, the population of Cyclops were found maximum in T4. The current study suggests that the vermicompost has contributed to an increase in Cyclops population by dominating all zooplankton populations in T4. From the obtained result it can be concluded that phase manuring with Vermicompost 375 g/week @ 10 ton/ha/year can be safely incorporated to improve SGR and overall growth performances of Labeo rohita and to enhance primary productivity by increase in Zooplankton populations.