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 (2026)
30 Jun 2026 (Vol - 57 , Issue- 07 )
31 Jul 2026 (Vol - 57 , Issue 07 )
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
Genome-wide association studies for important agronomic yield attributing traits and resistance to major diseases in rice (Oryza sativa L.)
Genome-wide association mapping studies (GWAS) in elite breeding line populations aim to identify marker-trait association (MTA) relevant to agronomic traits. Unlike previous GWAS studies that primarily utilized diverse collections of crop germplasm, we had specifically focused on a breeding population to ensure the applicability of our findings to breeding programs. To achieve this, we genotyped the breeding population using genotyping-by-sequencing (GBS) with 71 single nucleotide polymorphism (SNP) markers. Our objective was to expedite the selection process in the breeding program by performing GWAS. We successfully identified 37 MTA associated with agronomic traits. Chromosome 7 exhibited the highest number of significant associations, with eight MTAs. Notably, 27% of the identified MTAs coincided with or were in similar genomic regions as previously reported QTLs or genes from previous studies. The remaining 73% of the MTAs represented new associations that were not previously identified. These findings can be used to boost yield and comprehend the genetic mechanisms of rice by cloning the genes underlying the features and applying them to MAS. SNP markers linked to certain loci can be used to combine advantageous alleles to create new lines with enhanced yield traits.
Substituting Commercial Fish Feed with Azolla: Assessing Growth Performance in a Mixed Culture of Pangas (Pangasianodon hypophthalmus) and Grass carp (Ctenopharyngodon idella)
The aquatic fern Azolla Pinnata, known for its substantial protein, vitamin, and mineral content, was investigated as a potential substitute for commercial fish feed (CFF) in the polyculture of Pangas and Grass carp reared in domestic wastewater. A 90 days feeding trial was conducted to determine the growth performance in polyculture of Pangas and Grass carp fingerlings fed Azolla by completely replacing CFF following completely randomized design. Fishes were reared in five treatments, and fed with gradual replacement of CFF by A. Pinnata viz., T1 (100% P. hypophthalmus fingerling + 100% CFF), T2 (80% P. hypophthalmus fingerling and 20% C. idella fingerling +80% CFF and 20% A. Pinnata), T3 (60% P. hypophthalmus fingerling and 40% C. idella fingerling+60% CFF and 40% A. Pinnata), T4 (100% C .idella fingerling +0% CFF and 100 % A. Pinnata).Control was designed as (50% P. hypophthalmus fingerling and 50 % C. idella fingerling + 50% CFF and 50% A. Pinnata).Each treatment having different stocking ratio followed by different feeding percentage of Azolla and CFF on the basis of stocking density and fish body weight. The WGP, and SGR were found in increasing trend with increasing A. Pinnata inclusion level upto T2 groups, while these parameters were not varied significantly upto T4, after that a significant decreasing trend was reported (T4 group). The lowest FCR and CFF cost were reported in T2 group as compared to other treatments and control group. The present study reveals that the best stocking ratio for Pangas and Grass is 80:20 and 20% CFF can be replaced with fresh A. pinnata without any detrimental effects on growth of Pangas.
Evaluation of serum Lipid profile, immunity, caecal microbial load and egg sensory attributes of Japanese quails fed with holy basil (Ocimum sanctum Linn) and curry leaves (Murraya koenigii L), either singly or in combination
An experiment was carried out for six weeks using eight weeks old one hundred eighty white feathered laying quails (Coturnix coturnix japonica) to study their production performance, egg quality and egg yolk cholesterol. The experiment was conducted following 2 x 3 factorial CRD wherein two herbs (holy basil and curry leaves) were fed to laying quails each at three dietary levels (0, 1 and 3%) of holy basil and curry leaves of 0, 2.5 and 5% in combination. All the laying quails were distributed randomly into nine dietary treatment groups (T1 to T9) on the basis of similar egg production and body weight. Each treatment has five replications containing four birds/replication. A standard corn-soya meal based basal diet to meet NRC (1994) standard for laying quails was formulated. From the basal diet as maintained above, nine experimental diets (designated as T1 through T9) were formulated by adding desired levels of Holy basil (HB) leave powder and Curry leaves (CL) powder. Birds fed 3% holy and curry leaves at 5% had significantly (P<0.001) reduced liver cholesterol level. Holy basil at 3% level and Curry leaves dietary addition at 5% level had shown significant effect on serum lipid parameters, HA titre and Caecal microbial count. The study revealed that both holy basil and curry leave powder inclusion in the Japanese quail diet have reduced liver cholesterol content, Serum cholesterol level, induce immune response and reduced intestinal pathogenic microbes and improve the beneficial microbial population.
The combined use of in silico and in vitro analysis to assess the antimicrobial potential of plant extracts against Aspergillus niger
Six crude plant extract namely Lantana, Tridax, Coleus, Lemon grass, Neem and Tulsi were screened for antimicrobial activity against Aspergillus niger, a post-harvest pathogen in grapes fruit. Among aqueous and ethanolic extract of plants maximum inhibition of pathogen was observed in ethanolic extracts. Among the ethanolic extracts, maximum inhibitory concentration of 71.33% was shown by Tulsi (Occimum tenuiflorum) at 5000ppm. GC-MS analysis of ethanolic extract of tulsi showed the bioactive compounds present in it. Further molecular docking analysis of obtained bioactive compounds (ligands) from tulsi against StARkin domain of ergo sterol in fungi showed that eugenol, the bioactive compound present in tulsi is having lowest binding energy of -73.23 kcal/mol with that protein. This showed that eugenol present in tulsi may act as a potential drug target against post harvest fungal pathogen and it may increase the self-life of fruits.
Traditional Chinese Medicine Library: Molecular docking and Molecular dynamic simulation studies of compounds targeting Prototheca spp. a microalgal pathogen of zoonotic importance
Protothecosis, a zoonotic algal infection needs to be addressed under the one health principles. Treatment of algal infections has always been a challenge. There is no specific treatment for protothecosis both in humans and animals. Currently the only treatment for humans and food animals are antifungals which is associated with risk of toxicity and emergence of resistance. This study was aimed at identifying compounds for the control of Protothecosis by conducting insilico analysis against sterol 14α-demethylase (CYP51/ERG11), a key enzyme involved in the biosynthesis of ergosterol in Prototheca Spp. Traditional Chinese Medicine (TCM) library present in Drugrep was used for selecting the top hits and the ligands were ranked based on predicted affinity and molecular dynamics (MD) simulations was conducted using GROMACS2021 package for a timescale of 30ns. Based on autodock Vina affinity score/X-Score Binding energy of six compounds from Drugrep, that scored above -9.0 Kcal/mol and did not violate Lipinski’s rule of five criteria were selected: Peimisine, Limonin, Hecogenin, Jervine,((25R)-Spirost-4-ene-3,12-dione), Cyclopamine and Obacunone. The MD results showed that the (25R)-Spirost-4-ene-3,12-dione) had the most stable root mean square deviation (RMSD) when bound to sterol 14α-demethylase. However, the root mean square fluctuation (RMSF) of the protein both in bound and unbound state was similar. Ligands Hecogenin and (25R)-Spirost-4-ene-3,12-dione) that had 3-4 and 1 hydrogen bonds, respectively showed fewer fluctuations as compared to others. These two predicted compounds the (25R)-Spirost-4-ene-3,12-dione) and Hecogenin could possibly be expanded for their potential as drug candidates against Prototheca spp.