Vol. 10, Issue 10 (2021)

Author(s):
Swati Agrawal, Vinaya Kumar Yadav, AK Verma and RC Mishra

Abstract:
The field experiments were conducted at Student Instructional Farm of SVNU Sagar, during Rabi 2018-19 and 2019-20. The objective of investigation was to study the effect of foliar applied potassium nitrate and thio-urea with different doses on plant traits (physiological, biochemical, yield and its components) of two wheat varieties under drought and irrigated condition. It was designed in split-split plot design with three replications. The two conditions i.e., drought (I₀) and irrigated (I₁) conditions were allocated in the main plots and two wheat varieties i.e., V₁ (K-402) and V₂ (K-607) in sub plot and for each five chemical treatments were applied as foliar spray at heading stages by500 ppm (T₃) and 1000 ppm thio-urea (T₄), along with control (T₀) in sub-sub plots. The significantly higher grain yield (5.30& 5.12gm) with best morpho-physiological, phenological and biochemical traits can be obtained by foliar application of 500ppm thio-urea (T₃) with both condition of i.e., drought (I₀) and irrigated (I₁) of wheat crop. Next to this were 500ppm thio-urea (T₃) i.e., 5.30& 5.26, 1000ppm thio-urea (T₄) i.e., 5.12&5.08 as compare to control (T₀) i.e., 4.30& 4.13 gm. Among cultivars, maximum responsive was K-402 (V₁) in most of traits and gave significantly higher grain yield (5.30& 5.23) and minimum in K-607 (V₂) i.e., 5.12& 5.08 gm with both concerning experimental years.