Sources of resistance to ascochyta blight in wild Cicer species uri icon

abstract

  • An evaluation was made in field and greenhouse tests performed during 1988-91 of the resistance of 201 accessions of 8 annual wild Cicer spp. to Ascochyta rabiei, the cause of the major foliar disease of chickpea. Four accessions of C. judaicum and 7 of C. pinnatifidum were found to be resistant or moderately resistant to the pathogen. The blight-resistant accessions of C. judaicum originated from Jordan, Lebanon, Syria and Turkey, and those of C. pinnatifidum originated from Syria and Turkey. They mostly had a spreading growth habit and a very small seed size, but are thought to have potential for the transfer of genes for resistance. None of the accessions of C. bijugum, C. chorassanicum, C. cuneatum, C. echinospermum, C. reticulatum or C. yamashitae was resistant to blight
  • Ascochyta blight [Ascochyta rabiei (Pass.) Lab.] is the major foliar disease of chickpea (Cicer arietinum L.). In search of better sources of resistance to ascochyta blight, 201 accessions of 8 annual wild Cicer species were evaluated in field and greenhouse for 3 years (1988 to 1991) at Tel Hadya, Syria. One accession each of C. judaicum Boiss (ILWC 165) and C. pinnatifidum Jaub. & Spach. (ILWC 159) were consistently rated resistant in both field and greenhouse evaluations. Another three accessions of C. judaicum (ILWC 61, ILWC 154, ILWC 199) and six accessions of C. pinnatifidum (ILWC 78, ILWC 88, ILWC 155, ILWC 160, ILWC 162, ILWC 203) were resistant or moderately resistant. The blight-resistant accessions of C. judaicum originated from Jordan, Lebanon, Syria, and Turkey; and those of C. pinnatifidum from Syria and Turkey. None of the accessions of C. bijugum, C. chorassanicum, C. cuneatum, C. echinospermum, C. reticulatum and C. yamashitae were resistant to blight.

publication date

  • 1993
  • 1993
  • 1993