• [email protected]
  • +971 507 888 742
Submit Manuscript
SciAlert
  • Home
  • Journals
  • Information
    • For Authors
    • For Referees
    • For Librarian
    • For Societies
  • Contact
  1. International Journal of Plant Breeding and Genetics
  2. Vol 8 (2), 2014
  3. 57-65
  • Online First
  • Current Issue
  • Previous Issues
  • More Information
    Aims and Scope Editorial Board Guide to Authors Article Processing Charges
    Submit a Manuscript

International Journal of Plant Breeding and Genetics

Year: 2014 | Volume: 8 | Issue: 2 | Page No.: 57-65
DOI: 10.3923/ijpbg.2014.57.65

Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend



Total views 639

Search


Authors


A.A.A. EL-Hosary

Country: Egypt

Keywords


  • GCA and SCA
  • testers
  • Maize
  • inbred lines
  • combining ability
Research Article

Relative Values of Three Different Testers in Evaluating Combining Ability of New Maize Inbred Lines

A.A.A. EL-Hosary
Fifteen inbred lines and three testers of maize were crossed in line x tester scheme to study the combining ability effects for earliness, grain yield and yield components. A yield trial included the 45 top crosses, 15 inbred lines, 3 testers and two check hybrids S.C. Pioneer 3084 and T.W.C Giza 352. The experiment was conducted for three years at the Agricultural Research Station of the Faculty of Agriculture, Moshtohor, Benha University. The experimental design was randomized complete blocks with three replications. Mean squares due to crosses (C) inbred lines (L), testers (T) and line x tester (LxT) were significant for most studied traits for the combined analysis over two evaluation seasons. Significance of interaction variance for C, L, T and LxT with seasons on most studied traits was detected. δ2SCA played the major role in determining inheritance of all traits, revealing that the largest part of the total genetic variability associated with these traits was a result of non- additive gene action. The magnitude of the interaction of δ2SCAxyears (SY) was generally higher than for δ2GCA x SY. This indicates that non-additive type of gene action is more affected by SY than additive and additive x additive types of gene action. Inbred lines M L4, 8, 9, 10, 11 and L12 were reliable general combiners for earliness and M L3, 4, 5, 6 and L13 for grain yield plant-1. For earliness the top-cross M 212D x SC (M 201xM 204) gave the best Sij effects. Regarding grain yield plant-1, five SC between M L 204 and each of inbred lines M 232A, M 202C, M 242A, M 212D and M 236B as well as the two TWC M 202cxSC (201x204) and M 236BxSC (201x204) showed significantly and out yielded than check hybrid SC Pioneer 3084 by 18.99%, 12.67%, 15.71%, 11.29%, 14.11%, 10.55% and 6.56% in the combined analysis, respectively.
PDF Fulltext XML References Citation

How to cite this article

A.A.A. EL-Hosary, 2014. Relative Values of Three Different Testers in Evaluating Combining Ability of New Maize Inbred Lines. International Journal of Plant Breeding and Genetics, 8: 57-65.

DOI: 10.3923/ijpbg.2014.57.65

URL: https://scialert.net/abstract/?doi=ijpbg.2014.57.65

Related Articles

Heterosis and Combining Ability in Maize using Diallel Crosses among Seven New Inbred Lines
Genetic Control of Flowering Traits, Yield and its Components in Maize (Zea mays L.) at Different Sowing Dates
Genetic Analysis of Yield Traits in Local and Cimmyt Inbred Line Crosses Using LinexTester Analysis in Maize (Zea mays L.)

Leave a Comment


Your email address will not be published. Required fields are marked *

Useful Links

  • Journals
  • For Authors
  • For Referees
  • For Librarian
  • For Socities

Contact Us

Office Number 1128,
Tamani Arts Building,
Business Bay,
Deira, Dubai, UAE

Phone: +971 507 888 742
Email: [email protected]

About Science Alert

Science Alert is a technology platform and service provider for scholarly publishers, helping them to publish and distribute their content online. We provide a range of services, including hosting, design, and digital marketing, as well as analytics and other tools to help publishers understand their audience and optimize their content. Science Alert works with a wide variety of publishers, including academic societies, universities, and commercial publishers.

Follow Us
© Copyright Science Alert. All Rights Reserved