TY - JOUR
T1 - Association of yield and flag leaf photosynthesis among wheat recombinant inbred lines (RILs) under drought condition
AU - Azimi, Mohammadreza
AU - Alizadeh, Hoshang
AU - Hosseini Salekdeh, Ghasem
AU - Naghavi, Mohammadreza
PY - 2010
Y1 - 2010
N2 - Drought stress is one of the major limitations to crop productivity. To develop crop plants with enhanced tolerance of drought stress, a basic understanding of physiology is essential. The objective of this study was to investigate the possible physiological basis of high yield of the wheat recombinant inbred lines (RILs). We thus compared photosynthetic capacity of flag leaves and tolerance to drought stress between the wheat RILs and their parents. Agronomic and physiological traits were measured on young flag leaves of full grown plants of both stressed and non-stressed treatments at an early (EGF) and late (LGF) grain-filling stage. The responses of net photosynthesis (An), stomatal conductance (gs) and intercellular CO2 concentration (Ci) in this study make clear that drought stress significantly decreases photosynthesis rate. Compared with Ci, An and gs was found to be more sensitive to the drought stress.
AB - Drought stress is one of the major limitations to crop productivity. To develop crop plants with enhanced tolerance of drought stress, a basic understanding of physiology is essential. The objective of this study was to investigate the possible physiological basis of high yield of the wheat recombinant inbred lines (RILs). We thus compared photosynthetic capacity of flag leaves and tolerance to drought stress between the wheat RILs and their parents. Agronomic and physiological traits were measured on young flag leaves of full grown plants of both stressed and non-stressed treatments at an early (EGF) and late (LGF) grain-filling stage. The responses of net photosynthesis (An), stomatal conductance (gs) and intercellular CO2 concentration (Ci) in this study make clear that drought stress significantly decreases photosynthesis rate. Compared with Ci, An and gs was found to be more sensitive to the drought stress.
KW - Wheat
KW - recombinant inbred lines
KW - RILs
KW - photosynthesis
UR - http://www.scopus.com/inward/record.url?scp=78751676440&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:78751676440
SN - 1459-0255
VL - 8
SP - 861
EP - 863
JO - Journal of Food, Agriculture and Environment
JF - Journal of Food, Agriculture and Environment
IS - 3&4
ER -