Multi trait genotype- ideotype distance index - A tool for identification of elite parental inbreds for developing heterotic hybrids of fodder maize (Zea mays L.)

DOI: 10.37992/2023.1403.098

  • S. Palaniyappan,
  • K. N. Ganesan,
  • N. Manivannan,
  • V. Ravichandran and,
  • N. Senthil

Abstract

Forage maize breeders face a significant challenge in identifying genetic make-up that are superior for green fodder yield. Because it is influenced by polygenic trait. Therefore, understanding the relationship between biomass yield and other contributing characters would be very useful in selecting better genotype for improving green fodder yield. Forty one fodder maize inbred lines were evaluated in a randomized complete block design during June –September, 2021 to design selection index through various genetic and multivariate analyses to identify elite fodder maize inbreds for hybridization. The genotypes were evaluated for fourteen biometrical and four fodder quality traits. The association analysis revealed that plant height, leaf length, leaf breadth, number of nodes, stem girth, L/S ratio had highly significant contribution towards green fodder yield. The D2 analysis indicated that green fodder yield has contributed about 55.60 per cent to the total variation followed by dry matter yield for about 17.92%. The Multivariate Genotype- Ideotype Distance Index analysis identified six superior inbreds namely GETM 25, UMI 1210, UMI 1221, African Tall, GETM 69 and TNFM 139-1.

Keywords: Fodder maize, Diversity, Green fodder yield, Principal component.

Published
03-10-2023
How to Cite
S. Palaniyappan, K. N. Ganesan, N. Manivannan, V. Ravichandran and, N. Senthil

Multi trait genotype- ideotype distance index - A tool for identification of elite parental inbreds for developing heterotic hybrids of fodder maize Zea mays L.

. 2023. Electronic Journal of Plant Breeding, 14 3, 841-849. Retrieved from https://www.ejplantbreeding.org/index.php/EJPB/article/view/4768
Issue
Vol 14 No 3 (2023): EJPB
Section
Research Article

It is certified that:

  • The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
  • The article has been seen by all the authors who are satisfied with its form and content.
  • The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
  • All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
  • The corresponding author takes full responsibility for this article.
  • The address of the organization where the research was conducted is given.
  • The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
  • Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
  • If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.