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
TREND ANALYSIS OF CLIMATIC PARAMETERS IN THE CAUVERY DELTA REGION OF TAMIL NADU IN INDIA
Climate data on maximum and minimum temperature, relative humidity, air velocity and rainfall were collected from the concern District Collectorate and Agro Climate Research Centre, TNAU, Coimbatore for three districts (Tiruchirapalli, Thanjavur, and Pudukkottai) in the Cauvery delta region of Tamil Nadu, India, over a 10-year period (2009-2018). The average monthly maximum temperature (°C) was highest in May (38.30 ± 0.34 to 38.70 ± 0.40), and lowest in December (29.20 ± 0.20 to 30.00 ± 0.33). The average monthly minimum temperature (°C) was higher in May (28.30 ± 0.21 to 29.30 ± 0.21) but declined in January (19.70 ± 0.26 to 20.70 ± 0.15). The average monthly humidity (%) was high in November (78.30 ± 1.80 to 79.50 ± 1.65) and low in June and July (49.20 ± 1.63 to 50.60 ± 1.19). The average monthly air velocity (m/s) was more in June and July, ranging from 4.27 ± 0.20 to 4.69 ± 0.17, and least in October, ranging from 2.52 ± 0.12 to 2.79 ± 0.15. The average monthly rainfall (mm) was high in November (149.68 ± 36.44 to 225.20 ± 44.83) and low in February (3.41 ± 1.84 to 5.21 ± 2.33). During 2009-2018, the Mann-Kendall trend test revealed a significant (P<0.01) increasing positive trend for maximum and minimum temperatures and a non-significant decreasing negative trend for relative humidity, with the exception of Thanjavur district, where there was a significant (P<0.01) decrease in relative humidity. Similarly, the Mann-Kendall trend test indicated a non-significant increasing positive trend of air velocity but no trend in rainfall during the last decade (2009 to 2018) in Cauvery delta region of Tamil Nadu.
Morpho- Molecular Characterization of inbreds and hybrids for drought tolerance in maize (Zea mays L.)
The experiment was carried out to screen eight maize inbreeds (parents of F1s) and their twenty eight F1s along with two checks (DHM 117 and P 3522) for drought tolerance in maize on the basis of morphological and biochemical parameters during rabi 2023-24 in RBD design. The analysis of variance showed that inbreeds as well as their hybrids were highly significant for all the traits in normal condition except anthesis silking interval, cob girth and kernel row per cob whereas, in drought condition anthesis silking interval and ear height were significant and remaining all the traits were highly significant. The mean value of grain yield was ranged from 2778.09 to 11311.25 kg/ha and 1699.55 to 8696.41 kg/ha in normal and drought condition respectively. For most of the traits under consideration, check P 3522 was found superior under normal as well as drought condition. In drought condition, inbreeds SML 1, CML 451, CLO 2450 and BML 6 and cross combination CLO 2450× SML 1 (8696.41 kg/ha) and CLO 2450 × BML 6 (8516.38 kg/ha) showed significant higher grain yield. Molecular characterization was done using 22 SSR primers in which 17 primers showed amplification. The Polymorphism Information Content values of alleles ranged from 0.46 (Phi046) to 0.81(Phi059). Therefore selection of inbreeds viz., SML 1, CML 451, CLO 2450, BML 6 and their cross combination could be a better option for breeding programme associated with drought tolerance.
Heterosis Studies for Yield and Quality Characters in Okra (Abelmoschus esculentus L. Moench)
Okra (Abelmoschus esculentus L. Moench) is a vital vegetable crop with significant nutritional and economic importance in tropical and subtropical regions. Investigating heterosis in okra is crucial for improving yield, quality and resistance to biotic and abiotic stresses, resulting in superior hybrids with enhanced traits. As an often cross-pollinated crop, okra offers great potential for heterosis exploitation. This study, conducted at the Vegetable Experimental Farms II, Division of Vegetable Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, during 2022–2023, evaluated heterosis in okra to develop high-yielding, resilient cultivars. Seven parental lines and three testers were crossed in a Line × Tester design F1 cross combinations, parents and check were evaluated using a randomized complete block design in three replications. Significant differences among parents and hybrids were observed for all traits under study. Crosses like Arka Abhay × Punjab-20, Pusa Bhindi-5 × Punjab-20 and Arka Abhay × JBS-02 showed heterosis for earliness traits such as days to 50% flowering and days to first picking. Promising crosses, including Arka Abhay × Arka Lushgreen and Arka Anamika × JBS-02, exhibited heterosis for traits such as days to 50% flowering, first flowering node, inter-nodal distance and number of fruits per plant. These findings form the basis for developing superior okra hybrids with enhanced yield and quality. Identified hybrids can undergo multi-location trials to validate their performance before potential release, offering benefits to farmers, improving food security and meeting market demands efficiently.
Assessment of Farmers' Satisfaction Level Regarding the University's Kisan Mela
Farmers require timely and reliable information to adopt improved agricultural practices, yet they often struggle to access appropriate resources. While modern ICT tools have expanded information dissemination, Kisan Melas continue to serve as a crucial platform for transferring technology and knowledge to farmers. These events facilitate direct interactions between farmers, scientists, agricultural institutions, and policymakers, ensuring the effective exchange of innovative techniques, government schemes, and best practices. The present study was purposively conducted during Kisan Mela to know the satisfaction level of respondents. The level of satisfaction was calculated on three point continuum basis i.e., most satisfied, satisfied and not satisfied with the scoring of 3, 2 and 1 respectively. The ranking was done through calculating total weighted mean score (TWMS). The majority of respondents showed most satisfied in the area of investigation viz., location of venue, orientation of different stall, Availability of products variety, overall effect of Kisan Mela, Information regarding new strains of crops/animal, Information regarding new technology development in agriculture and allied and Behaviour of different Mela organizing persons.
Biological control using the potent native strain of Bacillus subtilis and Bacillus amyloliquefaciens against potato common scab
Potato common scab, caused by Streptomyces scabies, is a severe plant disease that significantly reduces the economic value of potatoes worldwide. Biological control methods have proven effective in managing phytopathogens in various crops. Considering the importance of the disease, the present investigation was carried out to evaluate the efficacy of different native potent strains of Bacillus spp. against the common scab. In the present study, based on 16S rDNA sequence analysis, one isolate of Streptomyces scabies and six isolates of Bacillus were identified. Among these five isolates were Bacillus subtilis and one was Bacillus amyloliquefaciens. Screening through a dual culture assay showed that Bacillus subtilis (B4) and Bacillus amyloliquefaciens (B7) showed the highest inhibition percentages of 50.37% and 49.14 % respectively and produced biocontrol-relevant traits such as siderophores. In pot assays, the disease severity scab decreased from 63.89% (inoculated with S. scabies only) to 7.22 % when treated with B4 (Tuber Dip 15g ± Soil 3.5kg/25kg of FYM and inoculated with S. scabies). Similarly, in the field trial, the disease severity decreased from 55.56 % (inoculated with S. scabies only) to 8.33 % when treated with B4 (Tuber Dip 15g ± Soil 3.5kg/25kg of FYM). The talc-based bioformulation of Bacillus subtilis (B4), applied as Tuber Dip 15g ± Soil 3.5kg/25kg of FYM, effectively managed the common scab of potato and resulted in the highest yield.