CULTIVAR 325 JOURNAL OF PLANT REGISTRATIONS Registration of ‘TAM 305’ Hard Red Winter Wheat Amir M.H. Ibrahim,* Jackie Rudd, Ravindra Devkota, Jason Baker, Russell Sutton, Bryan Simoneaux, Geraldine Opeña, Rex Herrington, Lloyd Rooney, Linda Dykes, Joseph Awika, Lloyd R. Nelson, Allan Fritz, Robert L. Bowden, Robert A. Graybosch, Yue Jin, Bradford W. Seabourn, Xianming Chen, Jim Kolmer, Paul St. Amand, Guihua Bai, and Robert Duncan Copyright © 2015 Crop Science Society of America. All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Journal of Plant Registrations 9:325–330 (2015). doi:10.3198/jpr2014.08.0054crc Received 27 Aug. 2014. Accepted 9 Mar. 2015. Registration by CSSA. 5585 Guilford Rd., Madison, WI 53711 USA *Corresponding author (aibrahim@ag.tamu.edu) Abstract Leaf and stripe rusts (caused by Puccinia triticina Erikss. and P. striiformis Westend. f. sp. tritici Erikss., respectively) are major disease problems in South Texas, Rolling Plains, and the Blacklands area of Texas where hard red winter wheat (HRW; Triticum aestivum L.) is a major crop, and wheat producers in these areas require rust-resistant cultivars. A significant breeding objective in South Texas is to develop HRW cultivars with robust resistance to both rust pathogens. Among these HRW cultivars is ‘TAM 305’ (Reg. No. CV-1108, PI 674514), which was developed and released by Texas A&M AgriLife Research in 2012. TAM 305 was derived from the cross TX97V3006/ TX98V6239. The original cross, designated X00VC230, was made at College Station, TX, in 1999. TAM 305 was released not only for its leaf, stripe, and stem rust (caused by P. graminis Pers.:Pers. f. sp. tritici Erikss. & E. Henn.) resistance but also because of its excellent grain yield in the Blacklands and South Texas. Milling and baking quality characteristics of TAM 305 were rated by the USDA–ARS-Hard Winter Wheat Quality Laboratory in Manhattan, KS. Comparisons to the HRW quality targets showed that TAM 305 has average milling yield, very good wheat and flour protein, minimal mixing time, excellent water absorption and loaf volume, but below average mixing tolerance. A.M.H. Ibrahim, R. Sutton, B. Simoneaux, G. Opeña, R. Herrington, L. Rooney, L. Dykes, J. Awika, and L.R. Nelson, Soil and Crop Sciences Dep., Texas A&M Univ., 2474 TAMU, College Station, TX 77843-2474; J. Rudd, R. Devkota, and J. Baker, Texas A&M AgriLife Research and Extension, 6500 Amarillo Blvd., Amarillo, TX 79106; A. Fritz, Kansas State Univ., Manhattan, KS 66506; R.L. Bowden, USDA–ARS, 4007 Throckmorton Plant Sciences Center, Kansas State Univ., Manhattan, KS 66506; R.A. Graybosch, USDA–ARS, 137 Keim Hall, East Campus, Univ. of Nebraska, Lincoln, NE 68583; Y. Jin and J. Kolmer, USDA–ARS, Cereal Disease Lab., 1551 Lindig Ave., Univ. of Minnesota, St. Paul, MN 55108; B.W. Seabourn, USDA–ARS Hard Winter Wheat Quality Lab., 1515 College Ave., Manhattan, KS 66502; X. Chen, USDA–ARS, Dep. of Plant Pathology, Washington State Univ., Pullman, WA 99164; P. St. Amand and G. Bai, USDA–ARS, Hard Winter Wheat Genetics Research Unit, Kansas State Univ., Manhattan, KS 66506; R. Duncan, Univ. of Manitoba, Dep. of Plant Science, Winnipeg, MB, Canada R3T 2N2. T exas plays a critical role in the development and spread of wheat leaf, stripe, and stem rust (caused by Puccinia triticina Erikss., P. striiformis Westend. f. sp. tritici Erikss., and P. graminis Pers.:Pers. f. sp. tritici Erikss. & E. Henn., respectively) throughout much of North America and serves as one of the main contributors to the Puccinia pathway. Texas is one of the only areas in the United States where these fungal pathogens overwinter and increase inoculum. If not properly controlled, this reservoir of inoculum is carried north by wind as the season progresses and can result in rust epidemics that negatively impact wheat production for much of the United States. Texas A&M AgriLife breeding program in south, central, and northeast Texas has undertaken an aggressive approach to develop HRW cultivars such as ‘TAM 305’, with robust resistance to the three rust types. TAM 305 HRW (Reg. No. CV-1108, PI 674514) was developed and released in 2012 by Texas A&M AgriLife Research to target growers in South Texas, Rolling Plains, and the Blacklands areas where high yield, excellent grain volume weight, good baking quality, and resistance to leaf and stripe rusts are sought. Methods Breeding History and Line Testing TAM 305 was derived from the cross TX97V3006/ TX98V6239 (Fig. 1). e pedigree of TX97V3006 is Abbreviations: CDL, Cereal Disease Laboratory; HRW, hard red winter wheat; SRPN, Southern Regional Performance Nursery; TXE, Texas Elite; UVT, Uniform Variety Trial. Published May 8, 2015