Possible use of leaf chlorophyll values with SPAD meter for selection criteria of bread wheat breeding in the Cukurova environment

This study was conducted to evaluate the relationships between leaf SPAD values for growth stage and grain yield with yield traits under the raifed and full irrigated environments. The field experiment was designed as split plot, irrigation as a main plot, cultivars as a subplot with four replication at the Field Crops Research Area of Agricultural Faculty in Cukurova University of Adana, Turkey. In this experiment, SPAD values of main growth stage of wheat leaves were not predicted any relationships with grain yield and yield traits, but, like a narrow leaf and high leaf nitrogen content were significantly associated with SPAD values at the milky and dought stage under the rainfed conditions. Key Words: Drought, SPAD, Grain Weight, Grain Yield, Grain Number