Effect of exogenously applied growth regulators on morpho-physiological and biochemical attributes of wheat (Triticum aestivum L.)

In the present investigation, a field experiment with nine treatments and three replications of each treatments was conducted with Randomised Block Design (RBD) to ascertain the effect of exogenously applied plant growth regulators on wheat morpho-physiological and biochemical attributes. Wheat plants were sprayed with growth regulators at tillering and before anthesis stage. The treatments were subjected to Indole 3 Acetic Acid (IAA) 25 ppm and 50 ppm, Gibberellins (GA3) 20 ppm and 40 ppm, Cytokinin (Kinetin) 5 ppm and 10 ppm, Alar 1000 ppm and 2000 ppm. Results shows that exogenous application of plant growth regulator helpful in improving plants growth traits such as plants height (cm), number of tillers plant-1, leaf area plant-1 (cm2), total dry matter plant-1 (g), relative growth rate (mg g-1 day-1) and Chlorophyll content (SPAD Value). All the parameters were significantly influenced by plant growth regulators in respect to control.