Identification of Potential Tropical Maize Inbred Lines with Early Maturity for Drought-Prone Environments

Authors

  • K. Kavya Sree Dept. of Genetics and Plant Breeding, College of Agriculture, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana (500 030), India
  • M. V. Nagesh Kumar Maize Research Centre, Agricultural Research Institute, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana (500 030), India https://orcid.org/0000-0002-8505-570X
  • V. Ramya Dept. of Plant Pathology, College of Agriculture, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana (500 030), India
  • N. Sunil ICAR-Indian Institute of Maize Research, Winter Nursery Centre, Rajendranagar, Hyderabad, Telangana (500 030), India
  • D. Bhadru Maize Research Centre, Agricultural Research Institute, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana (500 030), India
  • K. Srinivasa Chary Dept. of Agricultural Statistics and Mathematics, College of Agriculture, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana (500 030), India

DOI:

https://doi.org/10.23910/1.2024.5045

Keywords:

Maize, early maturity, general combining ability, specific combining ability

Abstract

The present study was undertaken during October, 2020–January, 2021 at Maize Research Centre, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana state, India to identify potential inbred lines and hybrids with early maturity and high yield through combining ability analysis and heterosis. Six lines and four testers were crossed in L×T design to obtain 24 crosses. Evaluation of these crosses and their parents for combining ability revealed significant differences due to lines, testers and their crosses indicating the existence of wider variability among the material used in the study. Maize line MGC 434 (91 days), two testers GP-170 and PFSR-56 (91 days), and one hybrid MGC-445×PFSR-132 (83 days) were identified as early duration genotypes. Four lines MGC-444 (-3.13), MGC-440 (-2.71), MGC-439 (-1.96) and MGC-445 (-0.46) with significant negative GCA effects were identified as best general combiners for early maturity. Eight hybrids, MGC-439×BML-14 (-4.99), MGC-445×PFSR-56 (-4.65), MGC-461×PFSR-56 (-3.65), MGC-445×PFSR-132 (-3.60), MGC-434×BML-14 (-2.32), MGC-439×GP-170 (-2.10), MGC-440×PFSR-56 (-2.07) and MGC-440×GP-170 (-1.01) with significant negative SCA effects were considered as best cross combinations with early maturity. The inbred parents and cross combinations with early maturity identified in the study can be utilized for development of hybrids suitable to drought prone environments. 

Downloads

Download data is not yet available.

Downloads

Published

2024-02-18

How to Cite

1.
Sree KK, Kumar MVN, Ramya V, Sunil N, Bhadru D, Chary KS. Identification of Potential Tropical Maize Inbred Lines with Early Maturity for Drought-Prone Environments. IJBSM [Internet]. 2024 Feb. 18 [cited 2025 Sep. 20];15(Feb, 2):01-10. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/5045

Issue

Vol. 15 No. Feb, 2 (2024)

Section

Articles

License

Copyright (c) 2024 International Journal of Bio-resource and Stress Management

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Authors retain copyright. Articles published are made available as open access articles, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. Creative Commons License

This journal permits and encourages authors to share their submitted versions (preprints), accepted versions (postprints) and/or published versions (publisher versions) freely under the CC BY-NC-SA 4.0 license while providing bibliographic details that credit, if applicable.