_____________________________________________________________________________________________________ ++ M.Sc. (Ag.) Scholar; # Professor; † Ph. D Research Scholar; *Corresponding author: E-mail: sunil01673@gmail.com; International Journal of Plant & Soil Science 34(23): 1798-1807, 2022; Article no.IJPSS.94485 ISSN: 2320-7035 Effect of Organic and Inorganic Plant Growth Promoters on Yield Attribute, Yield and Economics of Wheat (Triticum aestivum L.) Varieties Sunil Kumar Prajapati a++* , V. K. Verma a# , Gurwaan Singh a++ , Shivendra Singh a++ , Shikhar Verma a† , Bimlesh Kumar Prajapati b† and Pooja Kumari a++ a Department of Agronomy, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (U.P.)-208002, India. b Department of Soil Conservation and Water Management, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, (U.P.)-208002, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/IJPSS/2022/v34i232606 Open Peer Review History: This journal follows the Advanced Open Peer Review policy. Identity of the Reviewers, Editor(s) and additional Reviewers, peer review comments, different versions of the manuscript, comments of the editors, etc are available here: https://www.sdiarticle5.com/review-history/94485 Received 03 October 2022 Accepted 06 December 2022 Published 16 December 2022 ABSTRACT The field experiment was carried out during Rabi season of 2021-22 at “Students’ Instructional Farm” of Chandra Shekhar Azad University of Agriculture and Technology, Kanpur. The experiment included two factors, viz. timely shown wheat varieties, V 1 -DBW-187, V 2 -K-1006, and V 3 -K-607 in main-plot and plant growth promoters (PGPs), G 0 - Control, G 1 - Nitrobenzene @ 3ml l -1 , G 2 - Gibberellic acid @ 2000 ppm, G 3 -Seaweed extract solid @ 25 kg ha -1 , G 4 -Seaweed extract liquid @ 625 ml ha -1 , G 5 -Micronutrients (Zn, Fe, B, Cu) @ 0.5% were selected in sub-plots. The overall 18 treatment combinations were accommodated in Split Plot Design and replicated thrice. The results of this study showed significant increases in yield attributes, yield and economics, viz. no. of ears m -2 (426.29, 417.63), length of ear (10.97, 10.53 cm), no. of grains ear -1 (69.55, 69.81), test weight (40.67, 39.66 g), grain yield (4764.67, 4402.33 kg ha -1 ) and gross income (INR. 141547.00, 131446.90), net income (INR. 96773.00, 86672.74) and B: C ratio (3.14, 2.93) in wheat varieties DBW-187, K-1006 respectively as compared to variety K-607. Among plant growth promoters, G 6 - mixture of micronutrients (Zn, Fe, Cu, B) @ 0.5% foliar spray at tillering stage, resulted significant Original Research Article