Genetic-morphological Characterization and Diversity Analysis of Linseed (Linum usitattissimum L.) Germplasm

Abstract

Aims: To study morphological and genetic diversity among 100 Linseed (Linseed usitassimum L.) germplasm accessions.
 Study Design: Augmented RBD Design in five blocks with four checks.
 Place and Duration of Study: College of Agriculture, IGKV, Raipur, Chhattisgarh. During rabi 2020-2021 and rabi 2021-2022.
 Methodology: A total of 100 linseed germplasm accessions and four standard checks were studied by examining 10 quantitative traits which contribute to yield and its attributing traits. And observations recorded.
 Results: Outcome of the study revealed that analysis of variance for 10 quantitative characters showed differences for various characters. Results from genetic variability analysis state that the highest GCV/PCV was recorded for the traits 50% flowering, secondary branches plant-1, no. of capsules plant-1, and seed yield plant-1. Highest heritability was observed for all the traits under study. Highest heritability coupled with the highest genetic advance as percent was reported for 50% flowering, followed by secondary branches plant-1, no. of capsules plant-1, 1000 seed weight (g), and seed yield plant-1. Seven accessions such as LCK-9406, NL-126, Sumerpur Local, SJKO-8, L-103, EC-397752, R.S.-6 were recorded as having the highest oil content (%) greater than >42%. The highest seed yield plant-1 along with the highest oil content (%) was recorded in four accessions such as Sumerpur Local, EC-397752, LCK-9406, SJKO-8.
 Conclusion: The linseed accessions used in the current study showed significant variability for most of the characters. Observed accessions having the highest seed yield (g) and oil content (%) can be further utilized in the breeding programs based on breeder requirement.

Study of Genetic Variability and Path Analysis for Yield Attributing Traits in Linseed (Linum usitatissimum L.)

“…Low level of GCV and PCV observed for the traits like days to maturity and days to 50% flowering. These results agreed with the findings of Chauhan et al [23], Manhar [14], Reddy et al [24], Sathish et al [25] and Hoque et al [26].…”