The Aegilops collection in the Praha-Ruzyně (Czechoslovakia) Gene Bank: collecting, evaluation and documentation

Abstract

An Aegilops L. collection with 857 accessions represents a large part of the collection of wild Triticeae species in the Gene Bank Praha-Ruzyne. A considerable part (672) was received from the Gene Bank, IGK, Gatersleben, and 123 accessions were collected during expeditions to the USSR, Bulgaria, Yugoslavia, and Czechoslovakia. All accessions are being evaluated for resistance to a mixture of the most common races of stem, leaf and stripe rusts and powdery mildew. Considerable variablility was found among and within species in response to rusts, and a high resistance to powdery mildew. Investigation of quality features in 26 accessions showed a very high protein eontent (19 to 34%). Microsedimentation SDS test of grouts showed a considerable variation. All passport and evaluation data have been included in the genetic resources information system