Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Reddy, K. Raja
Committee Member
Henry, W. Brien
Committee Member
Bi, Guihong.
Committee Member
Shankle, Mark W.
Date of Degree
5-9-2015
Document Type
Graduate Thesis - Open Access
Major
Agronomy
Degree Name
Master of Science
College
College of Agriculture and Life Sciences
Department
Department of Plant and Soil Sciences
Abstract
Earlier planting to escape summer drought and high temperature has increased the importance of cold tolerance in corn. The objectives of this study were to assess cold tolerance among the corn hybrids using morpho-physiological traits and to classify hybrids into different groups of tolerance. Corn hybrids were subjected to optimum, low, and very low temperatures during seed emergence and seedling growth and morphological and physiological traits were assessed. Variability existed among the corn hybrids for the measured traits. Total, leaf and root weights and cumulative length and length per unit volume were the most important morphological traits in describing hybrid variability. Principle component analysis and total low temperature response index methods were used to categorize hybrid tolerance to low temperature. Based on relative scores assigned in this study and their yield potential in the niche environment, producer could select hybrids to maximize corn production in an early planting production system.
URI
https://hdl.handle.net/11668/16600
Recommended Citation
Wijewardana, Godakande Chathurika, "Screening Corn Hybrids for Cold Tolerance using Morpho-physiological Traits for Early Season Planting System" (2015). Theses and Dissertations. 3864.
https://scholarsjunction.msstate.edu/td/3864
Comments
Principle component analysis||Win-Rhizo||vigor index||rooy morphology||early season||Corn