Abstract
Challenges in maize production in Indonesia have led to the importance of assembling high yield varieties of maize. To create superior maize varieties requires genetic material particularly inbred lines as the basic material for setting population to perform crossing and selection. The research aims to characterize the quantitative and qualitative characters of 50 inbred maize which contributed to high yield and also to determine the uniformity of the tested inbred lines. A randomized group design with 3 replications was performed. Based on the results, characters with the highest variance were the number of seeds per ear and 1000 bulk weight. There were five characters with high heritability, including ear diameter, number of seeds per ear, ear wet weight, ear dry weight, and dry seed weight. The highest heritability was obtained from dry seed weight, while the lowest heritability was the number of lines per ear. The accession with the highest dry seed weight was P4G19(S)C2-114-3-1-2 (70 g), accession with the largest ear diameter and the highest number of seeds per ear was P4G19(S)C2-15-1-1-4, and the one with the largest ear dry weight was P4G18(S)C2-18-1-1. The results of the analysis on qualitative characters showed that the variation was still high within the tested lines.
Highlights
When conditions of climate change are increasingly uncertain and the global economic crisis has worsened for more than a year due to the Covid-19 pandemic [1], Indonesia must be aware of the domestic food problem
The fact that climate change which tends to global warming would have implications for the increasing threat of drought to maize in Indonesia [5], people no need to be feared, because Indonesia has a rich diversity of maize germplasm [6], which can be exploited its potential to assemble superior varieties of maize
This study aims to characterize 50 inbred maize, especially the quantitative characters that have a high contribution to yield components, as well as some of the main qualitative characters to determine the level of uniformity / similarity of the tested inbred lines
Summary
When conditions of climate change are increasingly uncertain and the global economic crisis has worsened for more than a year due to the Covid-19 pandemic [1], Indonesia must be aware of the domestic food problem. Corn is the second main food commodity after rice in Indonesia [2], maize is the main food supplier for dry land agricultural cultivation, because the majority of maize is cultivated on dry land [3]. This is consistent with the environment from which the world's maize plants originated, namely in Central America (Southern Mexico).
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
