Relationship of downy mildew resistance with yield related traits helpful for achieving reliable selection criteria in opium poppy (Papaver somniferum L.)

Abstract

Present study aims to understand the nature and degree of relationships between different morphometric and yield influencing traits using correlation and path coefficient analysis in medicinally important plant opium poppy. Genotypic and phenotypic correlation coefficients analysis showed significant negative correlation between downy mildew disease severity Index (DSI) and seed and straw yield. Furthermore, path analysis showed direct and positive effect of capsule diameter and number of capsule/plant to straw yield. In contrast, DSI had highest direct and negative contribution to straw yield. These results support effectiveness of selections for high seed and straw yield together with downey mildew-resistance in development of effective selection criteria for crop improvement.

Keywords

Downy mildew; disease resistance; opium poppy; Peronospora arborescens; straw alkaloid

Published in

Indian Journal Of Genetics And Plant Breeding
2015, Volume: 75, number: 3, pages: 396-399 Publisher: INDIAN SOC GENET PLANT BREEDING

SLU Authors

• Dubey, Mukesh

  • Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences
    
  • Central Institute of Medicinal and Aromatic Plants (CIMAP)

Associated SLU-program

SLU Plant Protection Network


UKÄ Subject classification

Genetics and Breeding
Plant Biotechnology


Publication identifier

DOI: https://doi.org/10.5958/0975-6906.2015.00064.4

Permanent link to this page (URI)

https://res.slu.se/id/publ/75556