Vol. 10, Issue 7 (2021)

Author(s):
YA Tamboli, JS Yadav, Parveen Kumar, Rita Dahiya and Anil Kumar

Abstract:
A field experiment was conducted on loamy sand soil during 2017-18 and 2018-19 at Regional Research Station, Bawal, CCS Haryana Agricultural University, Hisar. Twenty-four treatment combinations comprising of three levels of irrigation viz., Control (I₁), one irrigation at 40 DAS (I₂), two irrigation at 40 and 75 DAS (I₃), two varieties viz., RH-725 (V₁) and RH-749 (V₂) and four levels of antitranspirants viz., Control (A₁), PMA @ 250 ppm at 45 and 90 DAS (A₂), kaolin (6%) at 45 and 90 DAS (A₃) and PMA @ 250 ppm + kaolin (6%) at 45 and 90 DAS (A₄) were evaluated in split plot design with three replications by keeping levels of irrigation and varieties as main plot and antitranspirants in sub plots. From the results of two-year field investigation concluded that, irrigation schedule of two at 40 and 75 days after sowing (I₃) to mustard was found significantly superior in terms of all the growth parameteras well as more number of days taken to physiological maturity, respectively during both years of experimentation. The genotype RH-749 proved to be best as compared to RH-0725 in terms of all growth traits and recorded significantly more number of days were taken to 50% flowering and days were taken to physiological maturity by RH-749 (V₂) than RH-725 (V₁), during both years. Whereas, application of PMA @ 250 ppm + kaolin (6%) at 45 and 90 DAS (A₄) found to be superior in terms of all growth parameters followed by kaolin (6%) at 45 and 90 DAS (A₃), PMA @ 250 ppm at 45 and 90 DAS (A₂) and superior over control (A₁), respectively during both years of experimentation. Thus, higher growth traits can be achieved by sowing the mustard variety RH-749 along with application of two irrigations at 40 and 75 DAS and PMA @ 250 ppm + kaolin (6%) at 45 and 90 DAS on loamy sand soils under the agro-climatic condition of Bawal, Rewari, Haryana.