Kirkuk Journal of Science

Kirkuk Journal of Science

Susceptibility of Bread Wheat Cultivars to Wheat Gall Nematode and A Study Some of the Gene Action of Infection Percentage

Authors
Abstract
Screening of 15 wheat cultivars against wheat gall nematode Anguina tirtici con firmed that sabebage cultivar immune to this pest ,while different levels of Susceptibility was recorded on the other 14 cultivates .F1 crosses were showed significantly positive ,heterosis for its Nematodes sensitivity and no any one negative . Combining ability analysis showed that saberbeg variety gave the superiority of new recombination by the breeding programs like that of cross (Saberbeg X Abu-graib3) showed less sensitivity for wheat nematodes the additive gene action was more effective from dominance because the average degree of dominance was less from one .That broad and narrow sense heritability was high and equal (0.98)and (0.63) respectively; which can be a successful selective for plant breeding in early generation .
Keywords

Volume 5, Issue 2
Autumn 2010
Page 112-121

  • Receive Date 01 December 2010
  • Revise Date 20 December 2010
  • Accept Date 25 December 2010