Using correlation and some genetics methods to study of morphological traits in corn (Zea mays L.) yield and yield components under drought stress condition
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 2
Abstract
In order to study the effect of drought stress on morphological characteristics, yield and yield components of 18 new hybrids of corn (Zea maize L.) resistant to drought stress and warm (which were bred and screened in Khozestan province condition) and 6 commercial and promising genotypes as control, an experiment was conducted in a Randomized Complete Block Design (RCBD) with three replications under drought stress and normal irrigation at Khorasan-Razavi Agriculture Research Center, Mashhad, Iran on June 10, 2010. The results of analysis of variance showed that under normal irrigation and drought condition, there was a significant difference between the hybrids. Mean comparison of hybrids revealed that in normal irrigation KSC50 single cross hybrid and in drought stress 11 no. hybrid had the maximum grain yield. The effect of drought stress on leaf no. /plant and ear no. / plant was positive, while its effect on other traits was negative. The highest reduction of grain yield was observed in drought condition compared to normal irrigation. For the measured traits in normal irrigation and drought stress, genetic characteristics such as genotypic and phenotypic variations coefficients and heritability were calculated. Results revealed that under drought stress condition, the heritability of grain yield was increased about 45 percent.
Authors and Affiliations
Khodadad Mostafavi| Department of Agronomy and Plant Breeding, Karaj Branch, Islamic Azad University, Karaj, Iran.mostafavi@kiau.ac.ir, Mahdi Ghaemi| Department of Agronomy and Plant Breeding, Mashhad Branch, Islamic Azad University, Mashhad, Iran, Saeid Khavari Khorasani| Assistant prof of Khorasan Razavi Agricultural Research and Natural Resources Institute Mashhad, Iran
Keywords
Related Articles
- EP ID EP5305
- DOI -
- Views 356
- Downloads 17
Evaluating rice losses in various harvesting practices
Field performance of five different harvesting methods were assessed on randomized complete block design with four replications which included three indirect harvesting methods of (i) hand cutting + threshing by a tracto...
The Investigation of in–filled light–weight concrete cracking in frames made of cold–formed steel
In the current situation structures are traditionally built using hot–rolled steel. Making use of cold–formed steel sections indicates that exploiting members with large, thin and light–weight sheet dimensions instead of...
Effect of Plant Growth Promoting Bacteria (PGPR) on the MorphophysiologicalProperties of Button Mushroom Agaricus bisporus in Two Different Culturing Beds
Edible mushrooms such as Agaricus bisporus are cultivated for food worldwide. Phase change from the vegetative to the reproductive stage and fruit body initiation of this mushroom were made by presence of casing layer wh...
Introducing the effect of descriptive (qualitative) and traditional evaluation on mental health of grad 4 students in Tehran’s district 6 in the educational year of 2011-2012
The present research aimed to investigate the influence of relationship between descriptive (qualitative) and traditional (quantitative) assessment on fourth grade primary school students’ mental health in region 6 of Te...
Relationship between Principal’s Philosophical Mentality and the Innovation and Creativity of Teachers of High Schools in Bisetoon
This study examines the relationship between philosophical mentality of managers and creativity and innovation among high school teachers. The research method was descriptive and corelational and its statistical populati...