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. Azerbaijan Medical Journal Gongcheng Kexue Yu Jishu/Advanced Engineering Science Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery Interventional Pulmonology Kongzhi yu Juece/Control and Decision Zhenkong Kexue yu Jishu Xuebao/Journal of Vacuum Science and Technology Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) Zhonghua yi shi za zhi (Beijing, China : 1980) Tobacco Science and Technology
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:
Selection of parents based on per se performance and gca effects is of great relevance in breeding programme, in the event of the characters being under the complicated genetic control such as epistasis and linkage. Evaluation of parents based on per se performance and gca effects separately might lead to contradiction in selection of promising parents since per se performance of parents was not always associated with high gca effects . Combination of both per se performance and gca effects would be able to identify parents with good reservoir of superior genes. So, the parents were evaluated for high per se performance as well as for high gca effects together. Considering the trait single plant yield the lines ACK 09009, IR 8 and CO 43 showed desirable gca effects combined with high per se performance. Along with high per se performance and good combining ability for yield the line IR 8 was also found to be good for grains per panicle, grain weight and plant height. The line ACK 09009 recorded high per se performance and gca effects for number of productive tillers per plant and panicle length along with yield. The line CO 43 which was found to possess desirable per se performance along with gca effects for yield exhibited the same trend for the traits grains per panicle. Among the testers ASD 16 recorded desirable per se performance along with significant gca effects for yield.
The present investigation was conducted to develop mutants of rice varieties namely ADT43 and Kalinga for salt tolerance through in-vitro mutagenesis. The embryonic calli were produced and were treated with different doses of gamma irradiations and EMS concentrations and untreated calli was maintained for control. LD50 value of both the mutagen treated calli was found and the mutated calli of the two varieties were transferred to the media with optimum EC level. It was observed that the survival response of both gamma irradiated and EMS treated calli decreased under the optimum EC level. The rice cultivar ADT 43 recorded the maximum survival percentage of 32% at 30 Gy and 30% at 0.05% EMS under the optimum EC 10 dS/m, while the cultivar Kalinga recorded the maximum survival percentage of 28% at 20 Gy and 15% at 0.01% EMS under the optimum EC 10.3 dS/m. The in-vitro regenerated plantlets of ADT 43 and Kalinga obtained after in-vitro mutation were screened at the optimum EC level of the respective cultivars. After critical evaluation, the survived salt tolerant plants of M1 were forwarded to M2 where selection was made and identified six mutant lines viz., A-M2-15-1, A-M2-15-2, A-M2-15, K-M2-5-1, K-M2-5-2 and K-M2-5-3 from ADT 43 and Kalinga which exhibited better performance in biometrical observations and biochemical parameters like proline content, chlorophyll content, Na+/K+ ratio, APX activity, and SOD activity.
According to the available food security statistics, it is shown that food insecurity is prevalent in Nigeria and putting in view the rising world population, this food insecurity is a phenomenon that threatens the world at large. Therefore, the examination of the effect of population dynamics on food availability as a measure of food security in Nigeria is the purpose of this paper. My datasets were gotten from the World Development Index (WDI) for the year 2021, from which data relevant to my work from the year 2001 to 2020 were extracted for analysis. The independent variables were Dependent population, Birth Rate and Death Rate while the dependent variable Food Security is represented by Food Availability. A descriptive analysis was done to get the nature of my datasets after which a stationarity test was ran. An ARDL test was used to analyse the data after the optimal lag length criteria had been determined. Also, a bound test was carried out to determine the relationship between the variables in the long-run. The ARDL result showed that an indirect relationship between the dependent variable (FA) and independent variables BR and DR was observed and LNDEP had a positive relationship with the dependent variable. The R-Squared gotten was 0.99 and there exists a long-run relationship between all variables according to the Bound test. The recommendation of the study, based on this finding, is that a system that puts a check on birth rate and encourages the youths and young adults to participate in agriculture should be put in place.
Population expansion and food inadequacy have remained a major concern for developing nations in the world. Therefore, this study examined the effect of population growth rate on food availability in Nigeria. A descriptive analysis was done to determine the nature of the datasets after which a stationarity test was carried out which showed all variables stationary at level. The OLS method of regression analysis was employed. The result showed that an indirect and insignificant relationship exists between the dependent variable; food availability (FA) and independent variable; population growth (PGR). However, control variables, employment in agriculture (EIA), and agricultural raw materials imported (ARI) are significant and negatively related to food availability. It was also observed that only arable land (AL) has a positively significant relationship with food availability. The implication of this is that emphasis should be placed more on improving production of food i.e., food availability through policies and awareness and various empowerment schemes that encourage large scale farming and not emphasis or blame population growth for food unavailability.
A study was conducted to analyze the Socio economic impact of eucalyptus cultivation in Pudukkottai district of Tamil Nadu. Eucalyptus globus and Eucalyptus hybrid were the most commonly cultivated species in the district. Survey was conducted among 120 farmers cultivating eucalyptus in their land. The study was conducted in Nilayapatti, Pulvayal and Nachandhupatti villages of Pudukkottai district. The sample size includes 20 commercial cultivators and 100 conventional cultivators. Structured questionnaire was administered collect information to analyze the cost of cultivation and economic analysis of eucalyptus cultivation, people’s knowledge about environmental impacts of eucalyptus etc. Analytical tools like Cost of Cultivation, Net Present Worth (NPW) and Benefit Cost Ratio (BCR), Ordinary Least Square (OLS) and Logit Regression analysis were employed. The study concluded that eucalyptus cultivation was much suitable for marginal and barren lands. Most of the people were aware that eucalyptus cause environmental impact as it was a natural bio drainage crop and cause allelopathy effect on neighboring field plants with the release of secondary compounds but, it does not affect the mindset of the farmers to adopt eucalyptus cultivation in larger extent. Around 70 per cent of the respondents were into eucalyptus cultivation despite knowing the impacts only because of higher income, less maintenance and fast growth of the plant. From the study we obtained profitable cultivation with BCR ranging 4 to 6.