International Journal of Agriculture, Environment and Biotechnology
  • Year: 2016
  • Volume: 9
  • Issue: 4

Biochemical mechanisms of resistance to stripe rust (Pucciniastriiformis f.sp. tritici) in winter wheat (Triticum aestivum L.)

  • Author:
  • Rayees A. Lone1,, Tuhina Dey1, Gul Zaffar2, Shabir H. Wani2, Javeed A. Lone2
  • Total Page Count: 5
  • Page Number: 643 to 647

1Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Division of Genetics and Plant Breeding-Chatha, 180009, Jammu, Jammu and Kashmir, India

2Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Division of Genetics and Plant Breeding-Shalimar, 190025, Srinagar-Jammu and Kashmir, India

*Corresponding author: rayees181@gmail.com

Online published on 1 September, 2016.

Abstract

Data of the experiments revealed the status of winter wheat genotypes with respect to resistance against stripe rust at adult stage. Among the twenty five genotypes evaluated, China 84–40022, Drina, Drina NS 720, Joss Cambier, Mega, Saptadhara and WW-27 were resistant; Bolal, Centruck, Golden valley, WW-23, WW-24 and WW-25 were moderately resistant and PBW-343 and Agra local were highly susceptible to stripe rust under field conditions. The proline content and total phenols maintained a highly significant negative correlation with final rust severity (FRS) in field across the wheat genotypes. Proline content and total phenols were found maximum in Mega followed by Bolal whereas minimum values for these traits were found in PBW-343 followed by Agra local.

• Phenols and proline play important role in the defence mechanism of plants against diseases.

• Higher contents of phenols and proline were found in resistant genotypes compared with the susceptible ones.

• The proline content and total phenols maintained a highly significant negative correlation with final rust severity (FRS) across the wheat genotypes.

Keywords

Wheat, stripe rust, total phenols, proline content, FRS