Breeding chickpeas resistant to disease uri icon

abstract

  • ,iVork is in progress at ICRISAT to identify and incorporate resistance toFusariuni wilt, Ascschyta blight, Botrytis g:e/ rnsuld and stunt, which are consideredto be most damaging to the chickpea crop. Fusariun wilt resistance hasbeen incorporated into high y;eld:n3 tlcsi and knhirli backgrounds, using donorsidentified as highly resistant at ICRIS4T and other cjnters anl screening breed-Ing materials in wilt;lc'c plots. M )re recf:nt;y, w3 have obtained evidence ofcomplenientarity between recessive genes csnfxring rd;ijta2ca injicating thepossibility of obtaining highly resistant segregants from crossbs among moderatelysusceptible genotypes, thus making available a much wider range of backgroundsthan hithxto rele3sed. The inheritance of the other diseases isnot well ,understood. Ascochyta blight resistance is reported to be monogenicand either dominant or rezessivz; manogenic inhetitanse m3y alsooccur for chickpea stunt. Crosses have been made to incorporate resistanceto the other diseases into acla,3ted bazkgiounds and segrdaating p~pulationsscreened in field nurseries in India and elsewhere

publication date

  • 1983