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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
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International Annals of Science
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2456-7132
Published by AIJR Publisher Homepage  [4 journals]
  • Impact of Genotype × Environment Interaction on Seed Yield and Pod
           Shattering of Soybean Genotypes in Nigeria

    • Authors: Chukwudi Hillary NGWU, Andrew Saba GANA, Kehinde Dele TOLORUNSE, Amina Yusuf MAMUDU, Francis Chukwuma ONEJEME
      Pages: 1 - 13
      Abstract: Yield instability and pod shattering are the major problems associated with soybean production in Nigeria. To study Genotype × Environment interaction effects on seed yield and pod shattering behaviour of some soybean genotypes in Nigeria, an experiment was conducted in three (3) environments within the country. In each environment, the experiment was laid out in a randomized complete block design (RCBD) with three replications. During the harvest, pod shattering evaluation was conducted using the sun-dry method. Data were collected on seed yield and pod shattering percentage and analyzed using Additive Main Effect and Multiplicative Interaction (AMMI) and Genotype plus Genotype × Environment Interaction (GGE) bi-plot analyses. Genotypes NCRI SOYAC18, NCRI SOYAC78, NCRI SOYAC9, NCRI SOYAC20, NCRI SOYAC61, NCRI SOYAC22, NCRI SOYAC28 and NCRI SOYAC76, with yields above 1.23 ton/ha recorded high and stable yield across environments. For pod shattering resistance, nine genotypes (NCRI SOYAC3, NCRI SOYAC69, NCRI SOYAC77, NCRI SOYAC29, NCRI SOYAC9, NCRI SOYAC7, NCRI SOYAC67, NCRI SOYAC76 and NCRI SOYAC22) had stable pod shattering resistance across environments. Therefore, only three genotypes (NCRI SOYAC9, NCRI SOYAC22, and NCRI SOYAC76) were stable in both high yield and resistance to pod shattering. Consequently, any soybean breeding programme that involves high yield and pod shattering resistance could consider these three genotypes.
      PubDate: 2023-01-27
      DOI: 10.21467/ias.13.1.1-13
      Issue No: Vol. 13, No. 1 (2023)
  • Popcorn Polymers in Butadiene Extraction Units

    • Authors: Osama Alsaadi
      Pages: 14 - 21
      Abstract: Several aspects disturb operation of industrial facilities which can cause severe impact on their efficiency and productivity. In some cases, the impact can expose industrial facilities to serious safety concerns. Therefore, Industrial facilities should always plan to invest in reliability and sustainability of their daily operation. Polymerization is one of the unavoidable risks that can be unpredictable and cause several issues to operating facilities. On the other hand, effective proactive plans can be addressed to minimize and eliminate polymerization risks. This article provides introductory information about polymerization of butadiene “Popcorn polymers”, formation mechanism, associated hazard, control and mitigation methodologies.
      PubDate: 2023-02-09
      DOI: 10.21467/ias.13.1.14-21
      Issue No: Vol. 13, No. 1 (2023)
  • Scattering of Free Electrons with Hydrogen Atoms in Proton Exchange
           Membrane Fuel Cell System

    • Authors: Saddam Husain Dhobi, Suresh Prasad Gupta, Jeevan Jyoti Nakarmi, Bibek Koirala, Kishori Yadav, Sharad Kumar Oli, Milan Gurung
      Pages: 22 - 28
      Abstract: The objective of this work is to study the Klein-Nishina (KN) cross section during the collision of free electrons and atoms (H-atom and Pt-atom) near the cathode of Proton Exchange Membrane Fuel Cell (PEMFCs). The developed KN cross section was computed using MATLAB shows KN cross section decrease with an increase with the temperature. The maximum KN cross section recorded for single scattering is about -70.2m2 and -66m2 in natural log terms during the collision of free electrons with H-atom and Pt-atom, respectively. The maximum KN cross section recorded for 1ml flow of hydrogen is about -26.6m2 and -22.25m2 in natural log term during the collision of free electrons with H-atom and Pt-atom, respectively.
      PubDate: 2023-03-06
      DOI: 10.21467/ias.13.1.22-28
      Issue No: Vol. 13, No. 1 (2023)
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