Author: Roostaei M. Mohammadi S. Amri A. Majidi E. Nachit M. Haghparast R.
Publisher: MAIK Nauka/Interperiodica
ISSN: 1021-4437
Source: Russian Journal of Plant Physiology, Vol.58, Iss.2, 2011-03, pp. : 351-358
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The usefulness of fluorescence parameters as drought tolerance selection criteria for winter bread wheat in the highlands of Iran was studied. A population of 142 recombinant inbred lines, derived from a cross between two common wheat varieties, Azar2 (winter type) and 87Zhong291 (facultative type), was used to analyze the correlation between grain yield and chlorophyll fluorescence parameters at the grain-filling stage under drought stress and supplementary irrigation conditions during 2006-2007 and 2007-2008 seasons at Maragheh experiment station of the Dryland Agricultural Research Institute (DARI) using a RCBD with three replications. The results showed significant differences among the lines in the grain yield and all fluorescence parameters under rainfed and irrigation conditions. The values of chlorophyll content, F 0, F m, F v, F v/F m, LWP, YPEC, NPQ, and PI in the drought-tolerant genotypes were significantly higher than those in drought-sensitive genotypes under drought stress. Significant differences were observed between slope coefficients under drought, but not under supplementary irrigation conditions except NPQ (P = 5%). It was concluded that chlorophyll content, F 0, F m, F v, F v/F m, LWP, YPEC, NPQ, and PI could be used as additional indicators in screening wheat germplasm for drought tolerance.
Related content
By Chaparzadeh Nader Aftabi Younes Dolati Meysam Mehrnejad Faramarz Pessarakli Mohammad
Journal of Plant Nutrition, Vol. 37, Iss. 7, 2014-06 ,pp. :