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)
07 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
Effect of different environmental Condition on Seed Yield and Its Attributes in Sesame (Sesamum Indicum L.)
The analysis of Sesame (Sesamum Indicum L.) yield and yield attributes in three environmental conditions produced by three different dates of sowing viz., normal, late and very late sowing for yield and its attributes by performing (half diallel fashion excluding reciprocals). To achieve the objectives of the present investigation, ten diverse parents along with their 45 F1 progenies were evaluated in a randomized block design with three replications during kharif 2020-21 at S.K.N. College of Agriculture, Jobner (Rajasthan) in Kharif 2019-20. This Analysis of variance revealed that the existence of significant genotypic differences among the genotypes and F1’s in individual environment. The mean of seed yield per plant was decreased by 19.40% and 32.38% in normal to late environmental condition among the parents and hybrids respectively. In normal to very late environmental condition 60.32% and 65.41% reduction was observed among the parents and hybrids respectively.
Comparative Study of Nutritional and Physical Characteristics of Raw and Puffed Quinoa
An investigation was undertaken to study the nutritional composition of raw and puffed quinoa. Puffed quinoa which was subjected to heat treatment (230°C for 30s) gives maximum puffing yield. Puffed quinoa showed improvement in terms of proteins, carbohydrates, In-vitro protein and starch digestibility. All the processed products showed improvement in water absorption capacity, expansion volume and bulk density which was useful for further formulation. The maximum protein and carbohydrate were reported 13.49 and 69.05 g/100g respectively on puffed quinoa at 240°C for 30 s. Among physical properties includes water absorption capacity, 1000 seed weight, bulk density and expansion volume of processed products were improved. The maximum (275 %) water absorption capacity and the lowest 1000 seed weight found on puffed quinoa at 240°C for 30 s while the minimum bulk density (0.29 g/ml) and the maximum (8.20 ml) expansion volume was reported on puffed at 230°C for 30 s time. The raw quinoa contains bitterness which was reduced by primary processing such as soaking and washing in tape water. Color analysis of processed products slightly improved in terms of L* value (lightness), a* value (Redness) and b* values (Yellowness). The maximum(81.30) L* value was observed in puffed quinoa at 230°C for 30 s whereas lowest a* value and b* value were reported as 1.72 and 19.35 respectively in quinoa samples which was puffed at 240°C for 30 s time.
A Sustainability approach of Income, Expenditure and Employment through different activities adopted under watershed programme in Nagaland
The present study was conducted in Dimapur and Kohima districts of Nagaland. The maximum area covered under watershed in these two districts, further Dhansiripar and Medziphema from Dimapur Distract, Kohima Tseminyu from Kohima distract of Nagaland were randomly selected. After that a multi stage simple random sampling technique method was adopted for 320 respondents, out of total numbers, 160 beneficiaries and 160 non-beneficiaries were selected from the study area. Further study reveals that average income of beneficiaries were found to be maximum with 22.75 per cent through plantation crop and forestry, while it was recorded least through service as 3.450 per cent of the total income, respectively. The overall trend shows maximum (40.37 per cent), followed by animal husbandry as 21.72 per cent contributed towards the employment generated on the beneficiary watershed programme. The maximum pair wise limits was Rs 22911.14 and minimum of Rs 129.32 as the limit, which were found statistically significant at 5 per cent level for ‘Z’ 2-tailed test method. Even between the selected enterprises the maximum benefit-cost ratio was recorded on C of Rs 3.13 and minimum on E with Rs 1.25 against every investment of rupee, whereas the BCR indicate the maximum on A to D comparisons after eliminate D with 3.28 against the investment of every Rupee investment.
Analysis of Population Structure and Genetic Diversity in Rice (Oryza sativa L.) Germplasm using SSR Markers
Four hundred eighty four rice germplasm were characterized using41 microsatellite markers that cover the whole genome to assess the genetic diversity. The degree of polymorphism was detected by calculating PIC values, allelic frequency and genetic diversity was calculated. The mean value of major allele frequency was observed to be 0.33 and varied from 0.23 (RM26) to 0.66 (RM125). The polymorphism information content of 41 markers varied from 0.48 (RM125) to 0.80 (RM324) with an average of 0.71.The average gene diversity was observed to be 0.75 and varied from 0.51 (RM125) to 0.83 (RM324).Phylogenetic cluster analysis of the SSR data based on distance divided all genotypes into three groups (I, II and III), whereas model based clustering method divided these genotypes in to three groups (SP1, SP2 and SP3) However, the result from both the analysis is in well agreement with each other for clustering on the basis of diverse nature of selected germplasm.
Simulation And Test Study on Air-Suction Hill-Drop Seed-Metering Device for Small Grain Crops
At present, precision sowing of small grain crops is a difficult problem, millet is a representative crop. An air-suction precision hill-drop seed-metering device was designed to seed coated millet to solve the problem of the seed-suction hill blockage and seed damage. Three seed-metering device models with different diameter hills 1.6, 1.8, and 2.0 mm were simulated and calculated by ANSYS FLUENT. The comparative analysis of the pressure nephogram and the airflow velocity vector illustration. The results showed that the airflow field of the seed-metering device with a 1.6 mm diameter hill was beneficial to the stability and uniformity of sucking and planting seeds. The main structure and operation parameters in terms of negative pressure in the air chamber, rotation speed of the seed-metering device, and diameter of seed-suction hill were determined by theoretical analysis. Orthogonal test was carried out through the JPS-12 seed metering device test bench, the coated millet variety 8311-14 was selected as the test object. The qualified index of seeds number per hill, qualified index of hill spacing, index of empty hill, and coefficient of variation for hill spacing were chosen for evaluating the working performance. The results of orthogonal test showed that, the diameter of seed-suction hill was 2.0 mm, the negative pressure was -0.8 kPa, the rotation speed of the seed- metering device was 30 r/min. What’s more, a regression model based on the orthogonal test results was established, qualified index of seeds number per hill was 86.67%, qualified index of hill spacing was 89.33%, index of empty hill was 1.33%, and coefficient of variation for hill spacing was 13.74%. Notably, the working performances of the device can meet the requirement of precision hill-drop of millet seed.