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
Studies on General and Specific Combining Ability Effects in Onion (Allium cepa L.)
The present investigation was conducted to estimate General and Specific Combining Ability Effects in Onion (Allium cepa L.) among 36 genotypes of onion for foueteen characters comprised of bulb yield and its contributing characters. These genotypes were planted in Randomized Block Design with three replications during Rabi season,2022-23 at SKN College of Agriculture, Jobner. The pooled analysis of variance revealed that genotype, environment and genotype × environment interaction were significant for all the characters. The environment wise combining ability analysis revealed significant differences for GCA and SCA variances for all the characters indicating importance of both additive and non-additive gene effects in the genetic control of all the characters studied. The GCA/SCA showed preponderance of non-additive gene action for most of the characters. As regards general combining ability effects and per se performance the parents RO-1, RO-59 and Pusa Madhavi emerged as good general combiner for yield and most of the contributing characters. Out of 28 crosses studied RO-1 × RO-59, RO-1 × Pusa Shobha, RO-1 × Pusa Madhavi, Pusa Madhavi × Pusa Red, Pusa Shobha × Pusa Red and RO-1 × Pusa Red had high per se performance, SCA effects and significant heterotic effect in desirable direction for yield and most of the associated traits. The cross combinations with high SCA effects involving good × good general combiners were identified. All these crosses offer good promise for improvement of respective component characters in specific environment and ultimately bulb yield..
Effect of co-supplementation of nicotine and green-nanocolloid on the gene expression levels of buffalo oocytes during in-vitro maturation
Nicotine, a potent toxicant in cigarette smoke, adversely affects various stages of female reproductive function by acting as a pro-oxidant, increasing the generation of reactive oxygen species (ROS). Plant-derived antioxidants, known for their exceptional free radical-scavenging abilities, were the focus of this study. The primary objective was to explore the antioxidant effects of green-synthesized silver nanoparticles, termed Green nanocolloid-CcAgNps, on in vitro cultured buffalo oocytes, with the goal of mitigating nicotine’s impact. The assessment relied on the maturation rate of oocytes and the quantitative RT-PCR analysis of genes associated with antioxidant enzymes (SOD1 and GPX4), anti-apoptotic factors (BCL2) and fertility-related genes (GDF-9). Results showed a significantly higher maturation rate of oocytes cultured in a medium containing both nicotine and green nanocolloid than those exposed to nicotine alone. Moreover, GPX4 expression markedly increased in the nicotine with green nanocolloid group compared to the control group. Nicotine in the maturation medium led to a substantial upregulation of BCL2 and GDF-9 gene expression, while the addition of green nanocolloid alongside nicotine resulted in a significant downregulation of RNA expression. This indicates that the presence of green nanocolloid reduces the damage caused by nicotine and the study suggests that oocyte maturation rates improve without reliance on an enzymatic antioxidant system. This improvement is likely due to the potent free-radical scavenging capacity of silver nanoparticles capped with Cymbopogon citratus.
Wound Morphometry and Physio-Biochemical Indices in Diabetic Wistar Rats Using Platelet Rich Plasma and Nano Silver Gel On Full Thickness Wound
The present study was conducted on 36 Wistar male rats which were equally divided in three groups (n=12) viz. T1 group (treated with Nano silver gel), T2 group (treated with Platelet Rich Plasma (PRP)) and T3 group (treated with Povidone-iodine) which served as control group. Treatment was done at first 7 days from wound creation and tissue was collected on 7th, 14th and 21st days from wound creation, and exhibited the effect of topical application of silver nanoparticle and PRP in full thickness excisional wound in diabetic rats. The aim of the research work was to compare and evaluate the wound healing potency of Nano silver gel and PRP on wound healing process after its topical application in full thickness excisional wound in diabetic rat models. T2 showed significantly (p<0.05) better wound healing in terms of reduction in wound size, % wound contraction and catalase enzyme activity while numerically in terms of degree of inflammation, type and quantity of exudate, appearance and colour of granulation tissue, on days 7, 14 and 21 followed by T3 as compared to T1. Better catalase enzyme activity is indicative of increment in collagen deposition in reparative wounds which in turn is indicative of better wound healing. Application of nano silver gel and PRP enhance the wound healing process in diabetic wounds as compared to povidone-iodine treated wounds.
Exodus of Labour from Rural Agriculture and its Impact on the Rural Land: Analyses of Panel Data from Sichuan Province
The transition of labour from rural to urban regions is an effective indicator of rural land transfer in China. This paper employs a sample of panel data of fixed observation points in rural areas of Sichuan Province from 2003 to 2014 and uses a multiple linear regression model to analyse the impact of non-agricultural employment on rural land transfer. The findings here indicate that the total supply of the rural labour force in the Sichuan province of China decreased yearly. On the other hand, the rural labour force engaged in Rural Non-Agricultural (RNA) activities was rising. Then, most of those working in the RNA sector are young (below 25 years of age) and middle-aged (between 35 and 55 years of age), which made the rural labour force engaged in agricultural activities decrease over the years and gradually turn “senior citizens”. At the same time, the rural land in Sichuan province is incredibly fragmented and decentralised; 79.8% of the land area is less than one mu (one mu = 667 m2). The empirical analyses indicate that proportionately, fewer of those engaged in RNA sector activities transfer less rural land than those involved in the agricultural sector activities. This research can promote the transfer of the rural labour force and optimise the allocation of land resources, which is the inevitable requirement of agricultural and rural modernisation in the new era and has vital theoretical and policy significance.
Incorporation of buffalo epididymal proteins in semen extender improves sperm freezability and post-thaw semen quality in crossbred bulls
Poor freezability and post-thaw sperm quality is one of the major problems in crossbred cattle limiting the success of artificial insemination and genetic improvement under field conditions. In an attempt to improve the freezability and post-thaw semen quality, the current study was undertaken to assess the effects of buffalo epididymal proteins on crossbred bull spermatozoa during cryopreservation. A preliminary study was conducted to select a suitable dose of epididymal proteins. The epididymal proteins (whole epididymal, caput, corpus and cauda epididymal proteins) were incorporated in the semen extender at 1mg/mL of the extended semen (concentration selected based on the results of preliminary study). In the control group no proteins were incorporated. A total of 36 ejaculates from six number of crossbred bulls were utilised in the study and before (pre-freeze stage) and after (after thawing) cryopreservation sperm quality was assessed. Significantly higher pre-freeze and post-thaw sperm motility, viability and acrosomal integrity was observed in whole epididymal protein added group in comparison to other epididymal protein added groups and control group. The sperm penetration distance and membrane integrity were greater in both cauda epididymal protein and whole epididymal proteins added group in comparison to rest of epididymal protein added groups and control. In pre-freeze and post-thaw stage, among the whole and cauda epididymal proteins added group revealed a significantly lower level of MDA production as compared to caput and corpus epididymal proteins added groups and control group. Collectively, the findings of the current study indicate that the buffalo epididymal proteins offer protection to cattle spermatozoa during equilibration and during ultralow temperature cryopreservation.