Response of Different Varieties of Mustard (Brassica juncea L.) to Sulphur Application on Growth and Yield in Gird Region of Madhya Pradesh, India

In the rabi season of 2021–2022, a field experiment was set up at the Crop Research Centre–I, School of Agriculture, ITM University, Gwalior (M.P.) in a Randomised Block Design (factorial) with three replications. Twelve treatments were made up of three varieties HM Super 222, Bombay 76, and Lafar Kranti and four sulphur concentrations 0, 20, 40, and 60 kg S ha-1 to determine the ideal sulphur dosage and the ideal variety for increased output. On November 11, 2021, the experiment was planted in the CRC- I. At all of the periodic crop growth phases, with the exception of 30 DAS, there was a substantial increase in plant height, number of branches, total number of leaves, leaf area index, and dry matter accumulation from application of 0 to 60 kg S ha-1. At 60, 90 DAS and harvest, the higher values of growth parameters were recorded at the maximum amount of sulphur, or 60 kg S ha-1 with the exception of 40 kg S ha-1 where it was comparable to each other. Number of siliqua per plant, siliqua length, seed per siliqua, and seed yield were all significantly influenced by sulphur levels. The highest values were 60 kg S ha-1, which were comparable to 40 kg S ha-1. Among varieties, plant height, number of branches, total number of leaves, leaf area index, and dry matter accumulation of variety HM Super 222 were recorded significantly superior to variety Lafar Kranti and comparable to Bombay 76 at all growth stages except 30 days after sowing. Number of siliqua per plant, seed per siliqua and siliqua length of variety HM Super 222 were recorded significantly maximum to Lafar Kranti while comparable to Bombay 76. 1000 grain weight and harvest index were non-significant. Seed yield and stover yield were highest in variety HM Super 222. Economically the application of 40 kg S ha-1 and HM Super 222 variety gave maximum net return and benefit cost (BC) ratio.