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
Biological activity of three varieties of date stone ash (DEGLAT-NOUR / MECH DEGLA / HMIRA)
Date pits are the waste product of several date processing industries, and are either discarded or partially incorporated into animal feed. A number of studies have revealed their richness in various interesting biochemical and mineral substances. Our research focuses on the methanolic extraction of three varieties of Phoenix dactylifera L. date pits: DEGLAT-NOR, MECH-DEGLA and HMIRA. Chemical analyses revealed a high concentration of phenolic compounds (31.60 mg GAE/g extract) for the HMIRA variety, 28.77 mg GAE/g extract for DEGLAT-NOR and 20.39 mg GAE/g extract for MECH-DEGLAand flavonoids 20.841 mg CQE/g dry extract for the HMIRA variety, 15. 711 mg CQE/g dry extract for DEGLAT-NOR, 13.333 mg CQE/g dry extract for MECH-DEGLA and the results indicate a high antioxidant activity with an IC50 of 1.64 mg/ml for the HMIRA variety, DEGLAT-NOR confirms an IC50 which is 1.835 mg/ml and IC50 which is 2.017 mg/ml for the MECH-DEGLA variety. HMIRA date stones have a higher antioxidant power than the DEGLET NOUR and MECH-DEGLA varieties. Its richness in polyphenols and flavonoids exceeds that of the other two varieties. Antimicrobial activity was determined on four bacterial strains (Staphylococcus aureus, Pseudomonas aeruginosa, Bacillus sublilis, Escherichia coli), using the disc diffusion method. The results indicate that the methanolic extract of date stones of three varieties has antibacterial activity at different concentrations.
Strength, Weakness, Opportunities and Challenges (SWOC) of Kangayam cattle
The present study was conducted in Coimbatore, Erode, Karur and Tirupur districts of Tamil Nadu with the objectives to explore the strength, weakness, opportunities and challenges prevailing and to develop suitable extension strategies for in situ conservation of Kangayam cattle. Snowball sampling technique was pursued to identify 50Kangayamcattle farmersin each district, thus a total of 200 respondents were selected for the study. Rank Based Quotients (RBQ) technique was employed to find out the most important item under each section of SWOC toolpertaining to the Kangayam cattle farming which was developed through series of focused group discussions. Results revealed that the most important strengths expressed by the respondents were; inherent nature of the Kangayam cattle farming viz., dual purposes breed, zero / low input farming system and having high adaptability of Kangayam cattle by way of “survive, produce and reproduce” in the tropical climate. Respondents’ perceived cost of Kangayam cattle was relatively high when compared to crossbred cattle, comparatively low milk production capacity of the Kangayamcattle and the absence of special pricing policy for A2 milk produced by Kangayam cattle in dairy cooperatives as the top three weaknesses. Sale of A2 milk at premium price, value addition of milk and milk products like buttermilk, butter, ghee etc., and marketing them at premium price and conversion and marketing of farm waste into byproducts were considered as the three most important opportunities in Kangayam cattle farming. Scientific institutions orientation towards promoting high yielding crossbred and lack of organized breeding in indigenous breeds were the important challenges opined. The study also suggested suitable strategies based on the SWOC analysis for in -situ conservation of Kangayam cattle.
Citrus tristeza virus causing decline in Assam lemon (Citrus lemon) in Northeast India and development of strategy for production of virus free planting material
Citrus tristeza virus (CTV), a brown citrus aphid (Toxoptera citricidus) transmitted, longest known plant virus belonging to the genus Closterovirus (Family: Closteroviridae) causes decline of different citrus species worldwide. It has a significant threat on citriculture of Northeast (NE) India. Assam lemon (Citrus lemon) orchards in four districts of Assam and two districts of Meghalaya were surveyed during the month of October-November of 2022 to study the disease incidence and genetic diversity of CTV infecting Assam lemon orchards. The tender twig samples from apparently infected of healthy Assam lemon tree were collected, brought to laboratory and analyzed. Based on Direct antigen coated-enzyme link immunosorbent assay (DAC-ELISA) and Polymerase chain reaction (PCR) it was found that 76.3% of the Assam lemon plants tested was infected by CTV. Fourteen CTV isolates infecting Assam lemon plants were characterized based on analysis of complete coat protein (CP) gene (672 nt) of the virus. The gene was amplified, cloned, sequenced and analyzed. Pairwise sequence analysis showed that the present isolates shared 88-100% nt identity among them and also other Indian and international CTV isolates compared. In phylogenetic tree, the present CTV isolates segregated into three genotypes; eight isolates fell in Indian CTV genotype TK1/K5, four isolates in Indian decline inducing CTV genotype Kpg3, and two isolates in Israel severe CTV genotype VT. Intra-farm genetic diversity among CTV isolates were observed in Assam lemon orchards. Recombination events in CP gene of the present CTV isolates were identified. Of several Assam lemon plants, four plants were identified as CTV free and maintained on healthy rough lemon root stock through grafting. Implementing clean plant certification program is the most important strategy for management of CTV by using virus free Assam lemon scion bank.
Gendered Perceptive on Climate Change Awareness in Myanmar's Lowland, Ayeyarwady Region, Myanmar
This study, conducted in 2024, examined gender-based differences in climate change awareness in Myanmar's Ayeyarwady Delta, focusing on the influence of socioeconomic factors and local ecological knowledge. The primary objective was to assess how gender shapes awareness of climate change issues in the region. A quantitative survey was conducted with 200 respondents from Climate-Smart and Non-Climate-Smart Villages, using a rigorously validated awareness scale. Findings indicated that, while both genders showed a foundational understanding of climate impacts on agriculture, women, particularly older individuals engaged in agriculture, demonstrated significantly higher levels of awareness, shaped by economic dependency and ecological knowledge. These results underscore the importance of gender-specific factors in climate awareness, highlighting the need for policies that integrate women’s ecological knowledge to enhance adaptation strategies and resilience in Myanmar's vulnerable communities.
Influence of Seed Rate on Productivity, Nutritional Composition and Economics of Hydroponics Fodder Maize
Experiment was conducted to assess the “Effect of seed rate on yield, quality and water productivity of hydroponics fodder maize” at Bihar Agricultural University, Sabour, Bhagalpur, Bihar, India. The experiment was laid out in completely randomized design having five replication with six seed rate treatments viz., 500, 750, 1000, 1250, 1500 and 1750 g/tray. Seed rate with 1250 g/tray recorded significantly higher water productivity (0.49 kg/lit) as compared to 500 g/tray (0.36 kg/lit). The result revealed that, significantly highest green fodder yield (53.86 kg/tray) was observed with seed rate of 1250 g/tray as compared to 500 g/tray (35.50 kg/tray). However, significantly higher total dry matter accumulation and dry matter percentage was noticed with seed rate of 1250 g/tray (5.92 kg/tray) and (31.23 %) than that of 500 g/tray (3.55 kg/tray) and (23.53 %). Similarly, higher crude protein was noticed with 1250 g/tray (15.50 %) and lower at 500 g/tray (14.97 %) while higher nitrogen content was recorded at a seed rate of 1250 g/tray (2.48 %) and lower at 500 g/tray (2.40 %). The higher crude fiber and total ash recorded at 1250 g/tray (14.45 and 1.85 %) respectively. Among the different treatments, seed rate with 1250 g/tray has recorded higher net returns (Rs./unit 2,01243) and B:C ratio (3.86). Therefore, hydroponic fodder maize can be grown with seed rate 1250 g/tray produce higher green fodder yield with better nutritional quality.