Estimation of some genetic parameters in maize under adequacy and insufficien t water

Authors

  • Kareema Mohammad Wuhaib Department of Field Crops / College of Agriculture/ University of Baghdad.
  • Bnan Hassan Hadi Department of Field Crops Sciences/ College of Agriculture/ University of Baghdad.
  • Wajeeha Hassan Abed Department of Field Crops / College of Agriculture/ University of Baghdad.

DOI:

https://doi.org/10.59658/jkas.v5i5.212

Abstract

Afield experiment was conducted during two season , spring and fall 2013  in the Field of Crop Science Dept. – College of Agriculture – University of Baghdad . The objective of this experiment are to estimate the genetic parameters , broad sense heritability and co-heritability for several traits of maize ( Zea mays L.) for the synthetic cultivar , Ibaa 5012 , under watered and water stress treatments ( 5 and 10 days intervals) by using randomized complete block design with four replications . Genotypic , phenotypic and environmental variation (   , , ) genotypic and phenotypic coefficient of variation ( GCV , PCV) and broad sense heritability were estimated for ten traits : traits : days to anthesis , days to silking , plant height , ear height , number of leaves , leaf area , days to physiological maturity , dry weight , crop growth rate and grains yield . The results showed that genetic variance for most traits more than environment . GCV values for all traits very closed from PCV , that means the traits were under genetic control .All values of broad sense heritability for both seasons and irrigation treatment are high . The highest value was for the dry weight , crop growth  rate, grain yield and number of leaves in two season under irrigated , while in water stress , in addition to these traits the days to physiological maturity . It can conclude that the change in the plant environment due to water stress caused a change in the genetic parameters of the studied traits , especially the change in the amount of genetic variance and the environmental variance , it increased the values of some parameters of the traits and reduced to some others . This led to a change in the values of heritability and co-heritability .

Author Biographies

Kareema Mohammad Wuhaib, Department of Field Crops / College of Agriculture/ University of Baghdad.

Professor

Bnan Hassan Hadi, Department of Field Crops Sciences/ College of Agriculture/ University of Baghdad.

Assistant Professor

Wajeeha Hassan Abed, Department of Field Crops / College of Agriculture/ University of Baghdad.

Assistant Professor

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Published

03/06/2018

How to Cite

Wuhaib, K. M., Hadi, B. H., & Abed, W. H. (2018). Estimation of some genetic parameters in maize under adequacy and insufficien t water. Journal of Kerbala for Agricultural Sciences, 5(5), 53–66. https://doi.org/10.59658/jkas.v5i5.212