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All Journal Indonesian Journal of Agricultural Science Journal of Computing Theories and Applications
Nisar Ahmed
Research Institute for Bioresources, Okayama University
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management

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THE INHERITANCE OF YIELD AND YIELD COMPONENTS OF FIVE WHEAT HYBRID POPULATIONS UNDER DROUGHT CONDITIONS Khaliq, Ihsan; Maekawa, Masahiko; Ahmed, Nisar; Chowdhry, Muhammad Aslam
Indonesian Journal of Agricultural Science Vol 8, No 2 (2007): October 2007
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

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Abstract

The magnitude of genetic inheritance and expected genetic advanceare important for the prediction of response to selectionin diverse environments and provide the basis for planning andevaluating breeding programs. This work investigated the inheritanceof traits related to drought in wheat under naturaldrought conditions. Cross combinations were made to produceF1 and F2 hybrid populations, which were evaluated in a randomizedcompleted block design with three replications at Universityof Agriculture, Faisalabad, Pakistan. Six wheat varieties/linesand six derived F2 hybrids were studied to ascertain heritabilityand genetic advance for plant height, days taken to maturity,number of tillers per plant, spike length, number of grains perspike, 1000-grain weight, and grain yield per plant. Data werecollected and subjected to statistical genetic analyses. Heritabilityestimates and expected genetic advance for plant height,days taken to maturity, number of tillers per plant, 1000-grainweight and grain yield per plant were high for the entire crosscombinations while the estimates for spike length and numberof grains per spike were relatively low. Our results suggest thatimprovement for these characters should be faster because ofhigher heritabilities and greater phenotypic variation. Prospectsof genetic improvement for all the characters studied are evident.The most promising cross combinations were WL60 × LU26Sand WL61 × LU26S. These traits, therefore, deserve better attentionin future breeding programs for evolving better wheatfor stress environments.[Keywords: Triticum aestivum, plant breeding, drought resistance,yield components, genetic gain, heritability]
Experimental Evaluation of Various Chaos-based Image Encryption Schemes Abba, Abubakar; Ahmed, Nisar; Sulaimon, Hakeem Adewale
Journal of Computing Theories and Applications Vol. 3 No. 1 (2025): JCTA 3(1) 2025
Publisher : Universitas Dian Nuswantoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62411/jcta.13483

Abstract

The widespread use of digital images, driven by low-cost, handheld acquisition devices, has increased the need for robust security measures to safeguard privacy. This demand is further underscored by rising identity theft and other image-related crimes. This study presents a chaos-based experimental evaluation of contemporary image encryption algorithms. Owing to intrinsic properties such as sensitivity to initial conditions and pseudo-randomness, chaos theory has become increasingly prominent in image encryption. Five chaos-based image encryption schemes were selected and applied to a dataset of 26 color images. The evaluation covers both encryption performance and cryptographic security. Decryption quality is measured using Mean Squared Error (MSE), Peak Signal-to-Noise Ratio (PSNR), Structural Similarity Index (SSIM), and DeepEns. Cryptographic security is assessed using entropy, correlation coefficient, Number of Pixel Change Rate (NPCR), Unified Average Changing Intensity (UACI), average and maximum deviation, and histogram analysis. Experimental results indicate that all evaluated schemes demonstrate strong cryptographic security and comparable encryption performance, with broadly similar effectiveness across methods.
Co-Authors Abba, Abubakar Ihsan Khaliq Masahiko Maekawa Muhammad Aslam Chowdhry Sulaimon, Hakeem Adewale