Potato Journal
  • Year: 2005
  • Volume: 32
  • Issue: 3 and 4

Mating types, metalaxyl resistance and racial complexity in Phytophthora infestans population-present scenario

  • Author:
  • P.H. Singh1, B.P. Singh, M. Narayana Bhat2
  • Total Page Count: 2
  • Page Number: 177 to 178

1Central Potato Research Institute, Shimla-171 001, HP, India

2Central Potato Research Institute Campus, Modipuram-250 110, Meerut, UP, India

Abstract

Results of the studies revealed that A2 mating type continued to remain dominant in hilly areas while A1 was still dominant in sub-tropical plains. Resistance to metalaxyl had crossed the threshold level at most of the places studied. Frequency of 11 gene complex race 1.2.3.4.5.6.7.8.9.10.11 was highest at all the places.