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
Analysis of relations between Agriculture, Economic Growth and Environment in Algeria, Empirical Study (2000-2022).
The objective of this contribution is to analyze the existing relation-ships between agriculture, economic growth and greenhouse gas emissions in Algeria during the period 2000-2022. A Principal Component Analysis (PCA) was applied to the study data in order to assess the possible positive role of agriculture (as a brake on climate change) in reducing CO2 emissions. The results indicated that both agricultural land and forest area contributed more to the increase in CO2 than to its reduction. The Granger causality test was adopted to test the causal relationships between agricultural production and economic growth, and between agricultural production and greenhouse gas emissions (all gases combined). The results revealed the existence of a unidirectional relationship between agricultural production and greenhouse gas emissions, and the absence of a bidirectional relationship between agricultural production and economic growth. Algeria should develop sustain-able agricultural policies that reconcile economic growth with the reduction of greenhouse gas emissions.
Impact of Various Edible Coatings on the Physical Parameters of Guava (Psidium guajava L.) Fruits over Different Storage Periods
The research was conducted to extend the shelf life of guava fruits through individual and combined application of different edible coatings viz,: olive oil (100%), sesame oil (100%), tulsi leaf extract, aloe vera gel (100%), chitosan (2%), calcium gluconate (2%) and sodium alginate (2%) during 2020-2021 to 2021-2022. To evaluate the effect of different edible coatings on physical parameters on guava fruits during different storage period. The experiment was laid out in completely randomized block design comprised of 20 treatments with 3 replications. The result showed that all the edible coatings were significantly effective for enhancing the shelf life of guava fruits in both the year as well as pooled data over to control. Among the treatments, olive oil 100% + chitosan 2% was recorded significantly minimum physiological weight loss (1.43, 2.98, 5.54, 9.13, 11.02, 13.17 and 16.46 %), Decay/ Spoilage (1.78, 9.37, 13.77 and 16.10 %) and Marketable fruit retained (98.23, 90.64, 86.24 and 84.76 %) at 2, 4, 6, 8, 10, 12 and 14 days after storage respectively, which was at par with olive oil 100% + sodium alginate 2% and olive oil 100% + calcium gluconate 2 % as compared to other treatments in pooled analysis. Therefore, it is concluded that the edible coatings have to potential to extend the shelf life.
Suppressive effects of maize rhizospheric fungi on Rhizoctonia solani f. sp. sasakii inciting banded leaf and sheath blight
We employed the classical microbiological methodology to isolate endophytic fungi inhabiting the rhizosphere of maize (Zea mays L.). Identification of these endophytic fungi was carried out using ribosomal DNA sequencing, aiming to uncover distinct distribution patterns of these organisms that persist asymptomatically within the healthy root tissues of maize plants. The dominant fungal species associated with the roots of the maize hybrid PHM-1 were Aspergillus niger, Aspergillus terreus, Cladosporium cladosporidies, Penicillium oxalicum, and Penicillium raperi. To assess their potential impact, an in vitro assay was conducted to evaluate these isolates against Rhizoctonia solani f. sp. sasakii, the causal agent of banded leaf and sheath blight (BLSB). This disease is particularly prevalent in tropical regions worldwide and poses a significant threat to maize cultivation. Notably, the Aspergillus and Penicillium complexes found in the maize rhizosphere exhibited promising efficacy in inhibiting this soil-borne disease affecting maize plants.
Orthogonal and Non-Orthogonal Rotation Analysis of Body Indices Traits of Kishanganj Goat of Bihar India
Body indices provide a superior guide to measure the body weight and were also used as an indicator of type and function in domestic animals. The PCA analysis with orthogonal and non-orthogonal rotation analysis was performed with an objective to segregate important indicator of body indices. The data on 120 goats of 12 months and above age was recorded at breeding tract for different morphometric traits along with body weight. Body indices were calculated from measured morphometric traits following standard formulae. Mean, Standard Deviation and Coefficients of variation (CV %) of body indices were estimated. Least-squares fixed model analysis of data was carried out to study the effects of non-genetic factor location on different body indices. Correlation among of body indices were estimated. Orthogonal and non-orthogonal rotations of Principal Components in Indigenous goats of Bihar was done through the transformation of the components to approximate a simple structure. The effect of sex on body indices was found non-significant. The different body indices were estimated to be 77.91 (CpI), 1.07 (LI), 0.46 DI), 86.95 (BI), 86.06 (CI), 93.71 (Pr), 46.32 (RDT), 10.24 (DTI), 1.24 (TD), 3394.46 (AI) and 12.64 (RCTI), respectively. The standard deviation and coefficient of variation (CV) for different body indices ranged between 1.42 (FW) to 19.33 (CC); between 6.2% (BI) to 12.85% (CPI), respectively in goats of Kishanganj region. Body indices have presented low to moderate variability which give scope of their improvement with selection. The KMO measure of sampling adequacy (MSA) and Bertlett’s test of Sphericity validated phenotypic correlation among body indices. Phenotypic correlations among body indices were positive and moderate to high which gives high predictability. Four principal components for body indices traits were extracted which explained 81% variation of traits. The different principal components PC1, PC2, PC3 and PC4 has contributed variation with high positive significantly loading of different indices 29% (BI and DTI), 20% (LI and RCTI), 18% (DI, RDT and CPI) and 14% (AI and BW) respectively. The body indices BI, DTI, LI and RCTI contributed majorly in explaining its variation and identified sufficient to explain the variation of body indices. The results suggest that principal component analysis (PCA) could be used in breeding programs with reduction in the number of body indices to be recorded to explain the body conformation.
Influence of anther pretreatment on the efficiency of haploid production in marigold (Tagetes erecta L.)
Varied types of pretreatments cause stress on microspore bearing anthers which induces change of the development pathway of microspore from gametophytic to sporophytic which in turn leads to the production of haploids. In our experiments different pretreatments were given to anthers of marigold before in vitro culturing of male gametophytes. Flower buds (of size 2-2.5cm) in which a majority of microspores had reached the mid- or late-uninucleate stage were tested with regard to the effect of cold pretreatment at 4°C for 3, 6, 9 and 12 days and starvation in 0.3 M mannitol solution for 2, 4, 6 and 8 days. Chilling at 4°C for 9 days resulted in highest percent of responding anthers (91.5%), highest percent caulogenesis (54.7), highest number of shoot buds per anther (7.2), highest number of regenerants per anther (5.5), lowest number of days taken for callusing (12.25) and lowest number of days taken to shoot bud induction (15.75). while starvation of anthers by using 0.3M mannitol solution for 4 days resulted in highest percent of responding anthers (81.75%), lowest number of days taken for callusing (11.75), highest percent caulogenesis (66.5%), lowest number of days taken to shoot bud induction (15.25), highest number of shoot buds per anther (7.25) and highest number of regenerants per anther (5.75). Among the two pre-treatments evaluated, cold pretreatment showed better results in terms of percent responding anthers while mannitol starvation was found best for percent caulogenesis.