Premium
Inheritance of Stem Rust Reaction in a Khapli Emmer Cross 1
Author(s) -
Williams N. D.,
Gough F. J.
Publication year - 1965
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1965.0011183x000500020013x
Subject(s) - agricultural experiment station , geneticist , library science , biology , stem rust , genealogy , agriculture , history , computer science , agronomy , ecology , genetics , resistance (ecology)
THIS paper reports results of an inheritance study of the reaction of Triticum dicoccum Schiibl. 'Khapli' to physiologic races 111, 15B, and 56 of Puccinia graminis Pers. f. sp. tritici Eriks. & E. Henn. Hynes (7) inoculated 30 F3 families from Khapli X T. aestivum L. 'Federation' with races 15 and 27 which are avirulent on Khapli and virulent on Federation. One family appeared homozygous for susceptibility to race 27. None of the families were homozygous for susceptibility to race 15. Aamodt (1) concluded from a study of Khapli X T. durum Desf. 'Mindum' that multiple genes control Khapli's resistance to races 9, 17, 21, and 34. Waterhouse (14) reported 2 dominant genes in Khapli for resistance to races 34 and 46. Heermann (8) and Heermann et al. reported that 2 dominant genes condition seedling resistance of Khapli to race 15B while adult plant resistance is conditioned by 2 partially dominant and 2 recessive genes. The partially dominant genes appeared identical or closely linked to the genes for seedling resistance. Khan (cited by Knott, 10) reported 2 dominant genes in Khapli effective against races 21-2, 126-1, and 222-4. Ataullah (2) also found 2 genes in Khapli for resistance to 21-2 and 222-4, but only one of these was effective against 126-1. Athwal and Watson (3) reported that Khapstein, a derivative of Khapli X T. aestivum 'SteinwedeF, carries one dominant and one recessive gene which interact cumulatively to condition resistance to races 21, 126 Anz 1, 222 AB, and 222 BB. Knott (10) found resistance of Khapstein to race 56 to be controlled by 2 dominant genes which he designated Sr 13 and Srl4. Resistance to race 15B was conditioned by Sri 3 and a previously described gene, Sr7 (11), common in wheats (T. aestivum) from Kenya. Sr 13 acted as a recessive gene for resistance with race 15B.