Author(s): Suraj S Pokale, SB Amarshettiwar, Sapana B Baviskar and Sakshi Vilas Ingle

Abstract: During the Rabi season of 2022, a study on drought tolerance was conducted under rainfed conditions, as well as in laboratory settings, involving 10 genotypes of linseed. The experimental design utilized Randomized Block Design (RBD) for field trials and Completely Randomized Block Design (CRBD) with three replications for laboratory conditions. This study was conducted at the Research Farm of the All India Coordinated Research Project on Linseed and Mustard, College of Agriculture, Nagpur. The primary aim was to identify biochemical traits associated with drought tolerance and their correlation with yield and yield-contributing characteristics in linum usitassimum genotypes under rainfed conditions. Observations were recorded on various biochemical parameters including total phosphorus, chlorophyll, nitrogen, potassium, and proline content in leaves. Additionally, the oil content in seeds was estimated. Among the linseed genotypes studied, PKV NL-260 exhibited significantly higher leaf proline content during water stress conditions at the grain filling stage, followed by NL-369 and NL-371. Similarly, PKV NL-260 recorded the highest leaf total chlorophyll content, followed by NL-369 and NL-371. Regarding seed yield, PKV NL-260 showed the highest performance, followed by NL-369 and NL-371, surpassing the performance of the national check (NC) T-397 by 53.73%, 39.75%, and 34.48%, respectively.

DOI: 10.33545/26174693.2024.v8.i4a.897