Abstract
In the present investigation, a field experiment with nine treatments and three replications of each treatments was conducted with Randomized Block Design (RBD to explore effect of exogenously applied plant growth regulators on yield and quality traits of wheat crop. Wheat plants were sprayed with growth regulators at tillering and before anthesis stage, which were not only increase in the yield but also improve the quality components. The treatments were; 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 showed a conspicuous improvement in yield and quality traits of plant growth regulator treated plants. The yield traits such as number of ears plant-1, length of ear (cm), number of grains ear-1, grain yield plant-1, test weight and Harvest Index (HI) were found to be higher in IAA 50ppm treatment. Maximum protein content (%) was observed under the treatment of Kinetin 5 ppm. All the parameters were significantly influenced by plant growth regulators in respect to control.
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