The interrelation of physiological and morphological parameters in different spring wheat varieties and lines

摘要

The interrelation of photosynthetic activity, grain productivity and other morphophysiological parameters was studied in 27 varieties and lines of soft spring wheat of different origin. The rate of photosynthesis, leaf moisture, the mass of the apical leaf, the shoot and the grain were measured at the stages of tillering, germ tube formation and onset of ear formation. The interrelations between such parameters as grain mass and overground shoot mass, photosynthesic rate and moisture and mass of the apical leaf were reliably established, moreover, the highest coefficients of correlation were found in the group of low productivity wheat varieties.