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  3. 1293-1296
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Asian Journal of Plant Sciences

Year: 2007 | Volume: 6 | Issue: 8 | Page No.: 1293-1296
DOI: 10.3923/ajps.2007.1293.1296

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Authors


Amir Ali Khalatbari

Country: Iran

Mohammad Reza Bihamta

Country: Iran

Amir Mahdi Khalatbari

Country: Iran

Keywords


  • Drought stress
  • genetic diversity
  • inbred lines
  • drought resistance
  • corn
Research Article

An Evaluation of Quantitative Traits Related to Drought Resistance in Inbred Lines of Maize in Stress and Non-Stress Conditions

Amir Ali Khalatbari, Mohammad Reza Bihamta and Amir Mahdi Khalatbari
The objective of present study to evaluate the performance and resistance of a group of inbred lines selected under managed drought stress; to determine proper indices, those criteria with high correlation to yield and to apply practical analyses for superior genotypes based on the traits. In this research 30 inbred lines of corn were evaluated in field. Significant differences were observed among the Inbred lines for most traits in either stress or non-stress conditions. Most traits were negatively affected by drought stress, the highest reduction being observed in grain yield. The results of stepwise regression analysis showed that traits such as days to tassel initiation and days to pollination in non-stress condition could be used as desirable criteria for yield improvement. Under drought stress, traits such as number of ear per plant, number of rows per ear and number of seeds per row could be desirable criteria for yield improvement. Among the drought resistance indices, Mean Productivity (MP), Geometric Mean Productivity (GMP) and Stress Tolerance Index (STI) were the most suitable ones for drought resistance selection.
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How to cite this article

Amir Ali Khalatbari, Mohammad Reza Bihamta and Amir Mahdi Khalatbari, 2007. An Evaluation of Quantitative Traits Related to Drought Resistance in Inbred Lines of Maize in Stress and Non-Stress Conditions. Asian Journal of Plant Sciences, 6: 1293-1296.

DOI: 10.3923/ajps.2007.1293.1296

URL: https://scialert.net/abstract/?doi=ajps.2007.1293.1296

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