Effect of Water Stress on Root Distribution and Extension of Different Triticale Genotypes

پژوهشهای زراعی ایران

Article 5, Volume 12, Issue 3 - Serial Number 35, October 2014, Pages 417-426   

Document Type: Research Article

DOI: 10.22067/gsc.v12i3.42217

Authors

H. R Khazaei¹; SH Riahinia^{* 2}; H. R Eshghizadeh

¹Ferdowsi University of Mashhad

²Payame Noor University

Abstract

Root depth and distribution have an important role in drought resistance and optimization of moisture content of soil. This research was carried out in order to consider of root response of triticale genotypes to water stress and recognition of root trait that can effective in resistance of water stress. This experiment was in a factorial experiment based on completely random design on the year 2009. The genotypes of triticale was included (i) ET-82-15 (ii) ET-82-8 (iii) ET-82-17 and commercial triticale genotype Juanillo-92. Two irrigation regimes included 100 and 50 % of field capacity, respectively. The result showed that water stress result in increased 9% of root depth in each plant. Differences between minimum root depth was observed in ET-82-15 rather than maximum root depth in Juanillo-92 was approximately 8.2 centimeters. Late irrigation caused to diminish 25% of root length. Differences between maximum root length in ET-82-15 and minimum root length in ET-82-17 was not significant (p

Keywords

Root depth; Root length; Root surface area; grain yield

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