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)
07 May 2026 (Vol - 57 , Issue- 05 )
31 May 2026 (Vol - 57 , Issue 05 )
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
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.
Influence of Silicon and Nutrients on Growth, Flowering and Corm Traits of Gladiolus (Gladiolus grandiflorus L.) cv Pusa Shanthi.
This investigation examined the "Influence of Silicon and Nutrients on Growth, Flowering, and Corm Traits of Gladiolus (Gladiolus grandiflorus L.) cv Pusa Shanthi," conducted during consecutive seasons (2021-22 and 2022-23) at the Indian Agricultural Research Institute, New Delhi. A randomised block design with 12 treatments repeated three times was used to evaluate the effects of silicon application (30, 60, and 90 kg/ha in soil; 1% and 2% foliar), vermicompost, and RDF (200:100:100 kg NPK/ha). Essential growth indices, including plant height, leaf count, leaf duration, and stem girth, have markedly improved with the application of mixed packages of silicon (60 kg/ha soil and 1% foliar) in conjunction with RDF and vermicompost. Treatment T11 produced taller plants (121.83 cm), a greater leaf count (8.89), and increased stem girth (11.86 mm) in comparison to the control treatments. The blooming and quality of flowers were significantly enhanced, with T11 achieving early flowering (100.50 days), longer spikes (103.96 cm), a bigger number of florets per spike (21.84), and improved vase life (14.22 days). In corm trends, T11 exhibited the highest quantity of corms per plant (2.49) and cormels per plant (41.48), along with enhanced corm weight (38.34 g) and diameter (5.70 cm). The results highlight silicon's role in improving nutrient absorption, stress resilience, and overall plant efficacy. This study demonstrates the potential of combining silicon with vermicompost and RDF as a sustainable method to enhance growth, blooming, and corm production in Gladiolus, facilitating further research in various climatic and soil conditions.
Comparative Study of Physicochemical and Pomological Properties of Olive Oils from Azeradj and Gordal of Sevilla Cultivars in Setif (Northeastern Algeria)
This study aims to compare the pomological characteristics, oil yield, and physicochemical parameters of olive oils from Azeradj and Gordal of Sevilla cultivars grown in Setif (North-eastern of Algeria). Fruits were harvested at similar maturity indices (Azeradj: 3.83 and Gordal of Sevilla: 3.92) according to International Olive Council (IOC) standards. Azeradj demonstrated a slightly higher oil yield (13.04%) compared to Gordal of Sevilla (11.95%), with residues of 84.23% and 82.60%, respectively. Significant differences in fruit dimensions were observed; Gordal of Sevilla fruits were longer (2.3 cm) and wider (1.7 cm) than those of Azeradj (2.2 cm and 1.55 cm), confirming Gordal of Sevilla's suitability as a table olive. Chemical analyses of olive oils showed both varieties producing extra virgin olive oil, meeting IOC standards for acidity (Azeradj: 0.62% and Gordal of Sevilla: 0.67%), iodine index (Azeradj: 75.96 and Gordal of Sevilla: 76.60), and peroxide value (3.5 meq O₂/kg for both). These findings highlight the potential of the two cultivars for differentiated valorization, supporting the local olive oil industry's development.