Trait association and genetic diversity studies in castor (Ricinus communis L.) genotypes for yield and its attributing traits

TRAIT ASSOCIATION AND GENETIC DIVERSITY IN CASTOR FOR YIELD AND ATTRIBUTING TRAITS


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Authors

  • ATMAN POONIA CCSHAU, Regional Research Station, Bawal-123 501, Haryana
  • SATYAJEET CCSHAU, Regional Research Station, Bawal-123 501, Haryana
  • ASHOK K DEHINWAL CCSHAU, Regional Research Station, Bawal-123 501, Haryana
  • NAVISH KUMAR CCSHAU, Regional Research Station, Bawal-123 501, Haryana
  • BITTU RAJ Department of Genetics and Plant Breeding, CCSHAU, Hisar-125004, Haryana
  • PALLAVI J BHOYYAR Department of Genetics and Plant Breeding, CCSHAU, Hisar-125004, Haryana
  • ANKIT KUMAR CCSHAU, Regional Research Station, Bawal-123 501, Haryana
  • DEEPASHU KAULSIA CCSHAU, College of Agrilculture, Bawal-123 501, Haryana
  • VIKAS GILL CCSHAU, Regional Research Station, Bawal-123 501, Haryana

https://doi.org/10.56739/v3qtvx86

Keywords:

Castor, Correlation, Genetic diversity, Yield attributing traits

Abstract

Castor (Ricinus communis L.) is the sole species in the genus Ricinus, belonging to the Euphorbiaceae family. This plant thrives in diverse ecological regions, often succeeding where other crops cannot. The yield disparity between farmer-managed fields and research centers is mainly due to inadequate management practices affected by various stresses. The field experiment was performed at CCS HAU, Regional Research Station, Bawal, Rewari, India during kharif season 2021 with 19 castor genotypes grown in randomized block design with three replications. The number of days to 50% flowering of first raceme, number of days to maturity of first raceme, number of capsules/primary spike, number of effective spikes/plant, effective primary spike length (cm), 100-seed weight (g), oil content (%) and seed yield (q/ha) showed wide range of variability. The highest seed yield was in SHB-1062 (42.56 q/ha) followed by ANDCH-1735 (42.55 q/ha) and ICH-239 (41.25 q/ha). The minimum yield was recorded in DC-107 (21.05 q/ha). Seed yield was positively correlated with oil content (0.52), number of capsules (0.29), and effective length of primary raceme (0.35). Cluster-I had the highest mean for the number of capsules (104), effective length (82), and seed yield (40.48 q/ha), but a minimum for days to 50% flowering (56 days). Cluster-II had the lowest days to maturity (108 days), highest effective spikes/plant (12.60), and 100-seed weight (48.26 g).

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References

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Submitted

2026-04-17

Published

2025-07-14

Issue

Vol. 42 No. 2 (2025): Journal of Oilseeds Research

Section

Articles

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How to Cite

ATMAN POONIA, SATYAJEET, ASHOK K DEHINWAL, NAVISH KUMAR, BITTU RAJ, PALLAVI J BHOYYAR, ANKIT KUMAR, DEEPASHU KAULSIA, & VIKAS GILL. (2025). Trait association and genetic diversity studies in castor (Ricinus communis L.) genotypes for yield and its attributing traits: TRAIT ASSOCIATION AND GENETIC DIVERSITY IN CASTOR FOR YIELD AND ATTRIBUTING TRAITS. Journal of Oilseeds Research, 42(2), 146-150. https://doi.org/10.56739/v3qtvx86