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WOS Indexed (2024)
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. Lizi Jiaohuan Yu Xifu/Ion Exchange and Adsorption Fa yi xue za zhi
18 Apr 2024 (Vol - 55 , Issue- 04 )
30 Apr 2024 (Vol - 55 , Issue 04 )
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 Gene Effects of Pearl millet Hybrids in Arid Conditions
Present investigation was carried out to study combining ability effects along with inheritance of grain yield and its component traits in 77 hybrids of pearl millet. The results of both GCA and SCA variances were found significant for majority of characters. The ratio of GCA and SCA variance indicated the predominance of non-additive gene action for all the characters studied. From the results of GCA effects, it was revealed that a number of parents namely, ICMA 98222, ICMA 88004, ICMA 93333, ICMA 30199 ICMA 30201 and ICMA 10444, (female parents), BIB 511-520, BIB 481-500, BIB 561-570 and BIB 571-581 (male parents) were found to be better general combiner for grain yield and most of its component characters. On the basis of SCA effects the crosses namely, ICMA 97111 x BIB 561-570, ICMA 98222 x BIB 481-500, ICMA 88004 x BIB 501-510 and ICMA 93333 x BIB 551-560 were identified as superior for seed yield and related traits over the environments. Therefore, these parents and hybrids are recommended for utilization in development of promising hybrids as well as their use in population improvement.
Pyramiding of Stripe Rust Resistance Genes Yr10 and Yr15 in Elite Indian Wheat Cultivars Using Phenotypic and Marker Assisted Selection
The present study was undertaken to pyramid two effective stripe rust resistance genes Yr10 and Yr15 in susceptible local wheat cultivar RSP 561, high yielding wheat variety HD 2967 and a promising cultivar WH 1080 suitable for rain fed situations. In order to pyramid effective Yr genes in adapted susceptible varieties recurrent parents RSP 561, HD 2967 and WH 1080 were crossed with donor parents PBW 752 and PBW 779. Marker assisted selection was conducted in segregating generations using SSR markers Xpsp3000 and Xbarc8 linked to Yr10 and Yr15 respectively. The application of molecular markers facilitated identification of individual plants in segregating generations possessing the targeted genes. Ten homozygous pyramided lines were obtained with the background of elite cultivars with high yield potential and other useful agronomical traits. Agronomic performance of improved lines was compared with that of the recipient parent they showed high resemblance with recipient parents along with stripe rust resistance. These pyramided lines can be used as donor for breeding disease resistance lines in future breeding programme. These can also be used as potential varieties after conducting multi-location yield trials.
Characterization of Morphological, Physio-Chemical and Fertility Properties of Pear Growing Orchards under Temperate Conditions of Jammu & Kashmir, India
The occurrence of diverse soil types necessitates their scientific characterisation in order to understand their potential and problems in the production of crops and land resource management. For this purpose, six typical pedons in selected were undertaken from three different physiographic zones to study various morphological, physico-chemical and fertility parameters. The soil samples collected were analyzed as per standard procedures. The soils were moderately deep to very deep in depth, light yellowish brown to dark brown in colour, predominantly clay loam and silt loam to loam clay and occasionally sandy loam in texture, slightly acidic to slightly alkaline in reaction in (pH 6.6 to 7.53); normal electrical conductivity (0.18 – 0.48 dSm-1) and low to high in organic carbon (0.12 to 1.28%). The values of cation exchange capacity (CEC) were moderate were moderate (13.16 to 17.85 Cmolkg-1), dominated by exchangeable calcium (74%) followed by Mg, K and Na (Ca++ >Mg++> K+>Na+) with base saturation (BS %) values of 73.16–7.20% in high followed by mid (65.69–68.70%) and low altitudes (61.30–63.32%). Soils were high in available N, P, K, Mg, Zn, Cu, Mn and Fe; medium in Ca and S and low in S and B. For nutrients the spatial variability (CV %) ranges from 2.75 to 30.10% in soil and 2.50 to 26.20% in leaf with significant magnitude among some micronutrients along altitude and depth factors. A significant and positive correlation of available N, P, K, Ca, Cu, Mn, Fe, and B with their corresponding leaf nutrients was recorded. Nutrients like N, P, Ca, S, Zn, and Fe observed significant and positive relationship with fruit yield. The soils under study were classified as Inceptisols and Entisols in the USDA system of soil classification. A linear regression model (R2) suggested the combined effect of soil parameters (pH and OC with R2 = 0.7634 and 0.3069) on the yield performance of the pear orchards in the area.
Saving energy in urban electrified train operation: Tracking optimal speed profile and backing regenerative braking energy to utility source by active rectifiers in traction substations
Significant traction energy consumption for electrified train operation has posed a great challenge to metro systems, so seeking energy saving solutions is necessary. Among many energy-efficient operation methods, this paper proposes two combined energy saving solutions: applying Pontryagin's maximum principle for determining the optimal speed profile with fixed trip time in an aim at operating trains to track this optimal speed profile, and using active rectifiers replaces diode rectifiers in traction substations to recuperate regenerative braking energy as the electric trains track the optimal speed profile. Designing control for active rectifiers includes three control loops: the current control loop with sliding mode control, the voltage control loop, and phase-locked loop (PLL) enable energy to flow bi-directionally. When trains operate in braking phases, active rectifiers back the regenerative braking energy to utility source. Simulation results with data collected from metro line Cat Linh-Ha Dong, Viet Nam conducted on Matlab/Simulink have evaluated saving energy for the whole metro line is up to 11.96% compared with consumption energy without using any saving energy solutions.
Impact of Salicylic acid on Biochemical composition in the fruits of Chilli (Capsicum annuum ) plants infected by Colletotrichum capsici (Sydow) Butler and Bisby
A field experiment was conducted at Horticulture Farm, SKNCOA, Jobner during 2015-16 and 2016-17. In this study, four different varieties viz., Pusa Jwala, Pusa Sadabahar, Pusa Dipti and Amulaya and three germplasms NU-7078, NP-46A and G-S of chilli were raised and transplanted in third week of July. Roots of chilli seedlings were dipped in hundred ppm solution of salicylic acid for 30 minute before transplanting and same concentration of salicylic acid was also sprayed on all varieties before flowering and per cent disease intensity was noted 90 days after sowing. The peroxidase activity was increased (28.95%) in infected plants of Pusa Sadabahar variety followed by Pusa Depti (20.59%), NP-46A (19.35%) and Amulya (18.18%) while it was minimum in Pusa Jwala (9.09%) as compared to healthy ones. Minimum disease intensity was recorded in Pusa Sadabahar (7.93%), as it was also resulted in maximum increase in peroxidase, while higher per cent disease intensity was recorded in Pusa Jwala (43.4%), which resulted in minimum increase in peroxidase. The polyphenol content was increased maximum (23.68%) in infected plants of Pusa Sadabahar variety followed by Amulya (20.69%), NP-46A (17.14%) and it was found minimum in Pusa Jwala (13.04%) as compared to healthy ones. Phenol content was increased maximum (23.53%) in infected plants of Pusa Sadabahar variety followed by NP-46A (20.45%), G-S (14.29%), NU-7078 (12.50%) and it was recorded minimum in Pusa Jwala (12.00%) as compared to healthy ones.