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
Studies on inducting variability in sweet potato [Ipomoea batatas (L.) Lam.] cv. ST-14 through gamma irradiation
This study was undertaken to evaluate the effect of gamma irradiation on morphological, yield and biochemical attributes of sweet potato [Ipomoea batatas (L.) Lam.] cv. ST-14. Cuttings of sweet potato vine were irradiated with gamma rays (15, 30, 45, 60, 75, and 90 Gy) and non-irradiated cuttings were chosen as controls. After irradiation, cuttings were planted in replication in a well-prepared field at 30 x 30 cm spacing. Result revealed that average days to 50 (%) sprouting was significantly delayed with increasing doses of gamma irradiation. Among the gamma irradiation earliest day of 50 (%) sprouting was recorded in 15 Gy (12.49 days), whereas the delayed sprouting was recorded at 45 Gy. The maximum sprouting per cent, survival per cent and vine length was recorded in control followed by 15 Gy. Exposed to higher dose of gamma irradiation tends to decease in sprouting per cent, survival per cent and vine length of sweet potato. The LD50 value occurred at 45 Gy gamma irradiation level. The results indicated that gamma irradiation treatment was adversely affected vegetative parameters, such as vine length, number of leaves, leaf length, leaf width, and average fresh weight above ground level were recorded in irradiated plants over the control. TSS, starch content, sugar percentage, and carotenoids content were unaffected by irradiation treatment and were found to be non-significant in both generations. In conclusion, our findings indicated that gamma irradiation had a significant impact on vegetative and yield characteristics but had no effect on biochemical properties.
Status And Need Of Mechanization Of Oil Palm Harvesting In Telangana
Oil palm is a tree without branches but with many wide leaves at its top. It has become the world’s number one plantation crop because of its unparalleled productivity. One of the important and cumbersome activities in palm fruit cultivation is harvesting. Harvesting of oil palm is difficult due to its thorns like cut stems. Harvesting is being carried out manually by using sickle and pole arrangement. But the process is cumbersome and needs lot of effort. To reduce the difficulty of harvesting and to achieve good productivity of the crop an optimum machine has to be developed. Much research was done in this sector, but still the industry is in the need of an optimum machine. Hydraulic lifting platforms, motorized (cantas) cutters, pneumatically operated cutters, were developed but these have their own setbacks. Recently, focus was drawn towards the robotics. Here, this paper explains all the available and developing technologies in the area of harvesting of oil palm.
Promising pureline selection of Bhaderwah Rajmash (Phaseolus vulgaris) and its molecular characterization
Rajmash (Phaseolus vulgaris L.) is the most famous pulse crop preferred by consumers in Jammu and Kashmir. The pole type varieties are grown in the temperate region as an intercrop with maize. A promising pure line selection of Rajmash from Bhaderwah (Bhaderwah Rajmash 104) was selected on the basis of its quality, yield parameters and resistance to diseases/pests. The pure line selection was characterized using molecular markers viz., Inter Simple Sequence Repeats (ISSR), Randomly Amplified Polymorphic DNA (RAPD) and EST- Simple Sequence Repeats (EST- SSR). DNA polymorphism was shown 10 RAPD primers, 8 ISSR primers and 9 EST-SSR primers.
Research on Pressure Relief Support Technology for High Ground Stress Soft Rock Tunnel
Based on the self-developed stress self-feedback pressure relief device, a visual pressure relief test of the fluid filling lining was carried out to quantitatively study the support effect under the action of three spring stiffness coefficients, three loading areas and four particle sizes of fluid sand. The study found that the fluid filling lining support process can be divided into two stages: fluid compression section and fluid discharge section. In the fluid compression section, the initial load reduction rate was up to 78%. When the lining pressure exceeded the threshold value of the relief valve, it entered the fluid discharge section. The relief valve automatically released the surrounding rock energy by releasing the fluid and the load reduction rate was up to 47%. The research showed that the smaller the fluid particle size, spring coefficient and relative loading area, the better the supporting effect of fluid filling lining. The study found that the fluid discharge cavity area expanded in the shape of a prismatic. With the increase of the loading area and the pressure relief threshold, the depth of the cavity area is decreased. The expansion model of the cavity area was established and the equation of the pressure area of the cavity area was given. The energy dissipation principle of the pressure relief support technology of fluid filling lining was analysed and the energy dissipation equation was given.
An efficient in vitro regeneration protocol in guava cultivars (Hisar Safeda and Hisar surkha) using nodal and shoot tip explants
Guava being important cash crop grown in India, but the main technological hurdle is the good quality planting material because nowadays guava production is seriously hampered by wilting, root-knot nematodes and lack of cultivars. So, to provide true mother type plant which is free from disease and high productivity planting material, micro-propagation is only alternative and feasible tool, but micro-propagation in guava again faces problem of browning and microbial combination. So, the main aim of the study was to develop rapid and reproducible regeneration protocol for hybrid guava cvs to provide goods plants on large scale. MSM (Murashige and Skoog medium) and WPM (Woody plant medium) fortified with various combination of different plant growth regulators were used and found that WPM + 2.5 ppm BAP + 0.5 ppm IAA showed higher per cent shoot induction in nodal (51.70%) and shoot tip (52.29%) explants with 2.24 and 1.82 shoots/explants, respectively in cultivar Hisar Safeda. In Hisar Surkha, nodal explants revealed 53.81% and shoot tip explants 53.70 % shoot induction on WPM + 2.5 ppm BAP) + 0.2 ppm NAA with average of 2.04 and 1.32 shoots/explants, respectively. The in vitro regenerated shoots (micro shoots containing at least 3-4 leaves) were transplanted on different rooting medium but ½ strength MS medium + 2.0 ppm of IBA was found most effective per cent root induction of 71.78 % and 66.66% in Hisar Safeda and Hisar Surkha, respectively. These plantlets thus formed were grown on various combinations of sand, soil, vermiculite, farm yard manure and cocopeat for hardening and the medium having vermicullite and cocopeat (1:1) was found most effective with maximum 50-60% survival of plant after transplantation.