Release of NW13493 hard white winter wheat

Authors: BAENZIGER, PETER - University Of Nebraska; FRELS, KATHERINE - University Of Nebraska; Boehm Jr, Jeffrey; BELAMKAR, VIKAS - Corteva Agriscience; ROSE, DEVIN - University Of Nebraska; XU, LAN - University Of Nebraska; FINNIE, SEAN - Bay State Milling Company; WEGULO, STEPHEN - University Of Nebraska; REGASSA, TESHOME - University Of Nebraska; EASTERLY, AMANDA - University Of Nebraska; CREECH, CODY - University Of Nebraska; SANTRA, DIPAK - University Of Nebraska; KLEIN, ROBERT - University Of Nebraska; Jin, Yue; Kolmer, James; Chen, Ming-Shun; Bowden, Robert; Guttieri, Mary; Bai, Guihua; SALAH, IBRAHIM - Kansas State University; Masterson, Steven - Steve; POLAND, JESSE - Kansas State University

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/6/2022
Publication Date: N/A
Citation: N/A

Interpretive Summary: NW13493 is a hard white winter wheat (Triticum aestivum L.) cultivar developed cooperatively by the Nebraska Agricultural Experiment Station and the USDA-ARS and is being released primarily for its superior adaptation to rainfed wheat production systems throughout Nebraska and for having white kernels. In the Nebraska Intrastate Nursery from 2015 to 2020, NW13493 performed extremely well across Nebraska in head-to-head comparisons for grain yield with the currently popular available wheat cultivars. It was significantly or non-significantly higher yielding than all of the comparative cultivars and these data were further supported by its performance in the 2016 and 2017 USDA-ARS Southern Regional Performance Nursery, where NW13493 ranked 16th and 11th region-wide of the 38 and 50 entries tested in those years. In the last three years, NW13493 has been tested in the Nebraska State Variety Trials across 39 environments and was not significantly different in grain yield from all currently popular winter wheat cultivars that were tested state-wide (e.g. Ruth, Freeman, and LCS Valiant). Therefore, NW13493 is being released for its broad adaptation to all rainfed wheat production areas in NE. Moreover, NW13493 retained its high falling number when conditions were prone to induce pre-harvest sprouting (indicating it does not have a preharvest sprout problem) and in end-use quality tests, the overall end-use quality characteristics for NW13493 (scored as 4.5, where 3 is fair, 4 is good and 6 is excellent) was higher than Overland and similar to many commonly grown wheat check cultivars. Therefore, the end-use quality characteristics of NW13493 should be acceptable to the milling and baking industries.

Technical Abstract: NW13493 is a hard white winter wheat (Triticum aestivum L.) cultivar developed cooperatively by the Nebraska Agricultural Experiment Station and the USDA-ARS and is being released primarily for its superior adaptation to rainfed wheat production systems throughout Nebraska and for having white kernels. In the Nebraska Intrastate Nursery from 2015 to 2020, NW13493 performed extremely well across Nebraska in head-to-head comparisons for grain yield with the currently popularly available wheat cultivars. It was significantly or non-significantly higher yielding than all of the comparative cultivars and these data were further supported by its performance in the 2016 and 2017 USDA-ARS Southern Regional Performance Nursery, where NW13493 ranked 16th and 11th region-wide of the 38 and 50 entries tested in those years. In the last three years, NW13493 has been tested in the Nebraska State Variety Trials across 39 environments and was not significantly different in grain yield from all currently popular winter wheat cultivars that were tested state-wide (e.g. Ruth, Freeman, and LCS Valiant). NW13493 was genotyped as a semi-dwarf wheat, containing the RhtB1b allele (formerly known as Rht1). NW13493 was resistant to Soilborne wheat mosaic virus in field nurseries evaluated in Nebraska. It was moderately resistant to stem rust in field nursery tests conducted at St. Paul, MN and moderately resistant to moderate susceptible to stripe rust in field nurseries in Nebraska, respectively. In greenhouse seedling tests, it was resistant or segregating for resistance to stem rust races QFCSC, QTHJC, MCCFC, RCRSC, RKQQC, and TMPKC, but susceptible to race TTTTF. It was moderately resistant to leaf rust based on data obtained from field observations in the Great Plains. Molecular markers indicated NW13493 carries the Lr37/Sr38/Yr17 translocation. Moreover, NW13493 was moderately resistant to Fusarium head blight and moderately susceptible to DON accumulation. However, NW13493 was susceptible to Hessian fly, Wheat Streak Mosaic virus but was moderately susceptible to Barley yellow dwarf virus. NW13493 has high grain volume weight, which is similar to most high grain volume weight wheats (Ruth and Siege) and significantly higher than Overland, LCS Valiant, Robidoux, and Settler CL (higher grain volume weight cultivars). The milling and baking properties of NW13493 were determined for five years by the Nebraska Wheat Quality Laboratory and in these tests, the average flour protein content of NW13493 (12.2%) was slightly higher than check variety Overland (11.8%). The average flour yield and flour ash content for NW13493 was also similar to Overland. The dough mixing properties of NW13493 were designated 'good' and stronger than Overland. Average baking absorption (63.4%) and average loaf volume (938 cm3) was also similar to Overland, whereas crumb grain scores were higher than Overland. The overall end-use quality characteristics for NW13493 (scored as 4.5, where 3 is fair, 4 is good and 6 is excellent) was higher than Overland and similar to many commonly grown wheat cultivars in NE. Hence, NW13493 should be acceptable to the milling and baking industries. NW13493 is a white wheat and when conditions were conducive to sprouting, NW13493 retained its high falling number indicating it does not have a preharvest sprout problem.