Registration of Spring Wheat Germplasm ND 756 Combining Resistances to Foliar Diseases and Fusarium Head Blight

Abstract

ND 756 hard red spring wheat (HRSW) (Triticum aestivum L.) (Reg. No. GP‐837, PI 648034) was developed at North Dakota State University and released by the North Dakota Agricultural Experiment Station. ND 756 was derived from the ND 2849/ND 721 cross made in 1996. ND 2849 and ND 721 are two experimental lines developed by NDSU HRSW breeding program. ND 2849 is derived from a cross (ND 674//ND 2710/ND 688) involving NDSU HRSW experimental lines (ND 674 and ND 688) and ND 2710 (PI 633976, Frohberg et al., 2004) that was previously released for its resistance to Fusarium head blight (FHB) [caused by Fusarium graminearum Schwabe (telomorph Gibberella zeae (Schwein.) Petch]. ND 756 was produced from a bulk of one F5:6 head row selected in 2002 at the Christchurch, New Zealand off‐season nursery. ND 756 was released mainly for its resistance to Septoria nodorum blotch (SNB) [caused by Phaeosphaeria nodorum (E.Müller) Hedjarroude], Septoria tritici blotch (STB) [caused by Mycosphaerella graminicola (Fückl) J. Schröt. in Cohn] and tan spot [caused by Pyrenophora tritici‐repentis (Died.) Drechs]. ND 756 is also resistant to the prevalent races of stem rust (caused by Puccinia graminis Pers:Pers. f. sp.tritici Eriks. & E. Henn) and leaf rust (caused by Puccinia triticina Eriks.). ND 756 is moderately resistant to FHB and has good agronomic performance but does not meet the high grain quality requirements to qualify for release by NDAES.