Journal of Stress Physiology & Biochemistry, Vol. 10 No. 2 2014, pp. 265-274 ISSN 1997-0838
Original Text Copyright (cc) 2014 by  Maleki, Mozafari, Naseri, Tahmasebi and Mirzaeiheydari



ORIGINAL ARTICLE
Full text in PDF Download to Citation ManagerPermanent urlData source :  Google Scholar
QueryDate : 2016-12-24
Cites : 0
         

Leaf Water Relationships and Canopy Temperature as Criteria to Distinguish Maize Hybrids under Drought Stress

Abbas Maleki1*, Vahid Mozafari2, Rahim Naseri3, Ahmad Tahmasebi4 and Mohammad Mirzaeiheydari5

1 Department of Agronomy and Plant Breeding, College of Agriculture, Islamic Azad University, Branch of Ilam, Ilam, Iran
2
Former M.Sc. student in Plant Breeding, Shiraz University, Shiraz, Iran
3 Young Researchers and Elite Club, Ilam Branch, Islamic Azad University, Ilam, Iran
4 Ph.D. student in Plant Breeding, Faculty of Agriculture, Shiraz University, Shiraz, Iran
5 Department of Agronomy and Plant Breeding, College of Agriculture, Islamic Azad University, Branch of Ilam, Ilam, Iran

Tel: +989188426034
*E-Mail: maleki_abbas@yahoo.com


Received February 19, 2014


This research aimed at studying the physiologic traits of maize different hybrids and considering them as screening criteria to select the drought tolerant hybrids. The experiment was conducted using a randomized complete block design with three replications and in a split-plot arrangement. The treatments were as follows: Maize Hybrids (including SC400, ZP434, SC524, ZP599, BC66, SC704) and irrigation regimes (including optimum; 100% FC, moderate; 75% FC, and severe stress; 50% FC). Results showed that drought stress significantly affects most of the studied indices. These indices also had significant differences in the above mentioned hybrids. Indices of leaf relative water content and temperature of the canopy varied significantly under drought stress. So, they could be used as suitable criteria to measure the level of stress effect on the plant and also to lay out the irrigation schedule. Findings of the study suggest that blistering is the best growth stage to screen the hybrids and among the studied indices, the ELWL is the best item for screening.

Key words:   Maize, Drought stress, Physiologic traits

Back to issue content
интернет статистика
Free blog 

counters