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Field Crop Development Centre, Alberta Agriculture and Food, 5030-50th St., Lacombe, AB, T4L 1W8 (http//www.agric.gov.ab.ca/$department/deptdocs.nsf/all/fcd5615)
* Corresponding author (donald.salmon{at}gov.ab.ca).
‘Tyndal’ (Reg. No. CV-30, PI 643975) is a spring triticale (X triticosecale Wittmack), released in 2006 by the Field Crop Development Centre (FCDC), Alberta Agriculture and Food, Lacombe, Alberta, Canada (Canadian Reg. No. 6158). Tyndal is derived from the cross Nimir-1/Hare-265//Erizo-9/3/88L012 produced at FCDC in 1994. The germplasm line Nimir-1/Hare-265//Erizo-9 was a CIMMYT spring triticale introduction and 88L012 was a reduced awn expression (awnletted) triticale population developed at FCDC. The awnletted characteristic in 88L012 came from a triticale x spring wheat (RL4137 = RL 2520/6* Thatcher/Kenya Farmer) cross backcrossed several times to spring triticale (7631-ED4B/RL4137//7431A-68E4/3/Otter ‘S’/4/83L046), including a sister line (83L046 = Wapiti/3/M2A/Bgl//Panda ‘R’ 203) to Pronghorn (Salmon et al., 1997)
The F2 population was grown in the field in 1995 and subjected to selection for degree of awn reduction. The F3 to F5 generations were handled in a modified bulk, using plant type, early maturity, and degree of awn reduction as the primary selection criteria. The F6 to F7 generations were subsequently evaluated for agronomic type as headrows at Lacombe. Tyndal was evaluated as selection number 94L043017 in preliminary trials from 1998 to 2001 and in the Canadian Western Spring Triticale Coop registration trial as T182 from 2002 to 2004.
Based on 27 station years over a 3-yr period Tyndal yielded 4459 kg ha–1 compared to the check variety Pronghorn which yielded 4339 kg ha–1. Over the same period of testing Tyndal had a thousand kernel weight 42.2 g and a test weight of 72.7 kg hL–1 compared to Pronghorn at 42.3 g and 69.9 kg hL–1, respectively. Tyndal averaged 92 cm in height and matured at 106 d. Silage trials conducted at FCDC from 2001 through 2004 indicated that Tyndal produced 11.7 t ha–1 which was 4% higher yielding than the cultivar Pronghorn.
Tyndal is awnletted, medium tall, and has a semi-erect juvenile plant habit. The leaves are blue green in color, medium in length, wide, slightly waxy, and glaborous. The flag leaf is semi-erect, blue green in color, medium in width, and long. The spike is fusiform, slightly nodding, medium density, slightly waxy, and has short apical awnlettes. The glumes are yellow at maturity, and are medium width medium long, slightly pubescent, and slightly waxy. The glume has a rounded and medium width shoulder with an acute beak.
The kernel is light red in color, medium to large in size, medium wide, medium long, and elliptical in shape. The kernel brush is medium to large in size with medium long hairs. The kernel cheeks are rounded to slightly angular, with a medium wide and shallow to medium deep crease. The kernel germ is round to oval in shape and large in size.
Tyndal is resistant to the prevalent races of stem rust (caused by Puccinia graminis Pers.:Pers. F. sp. tritici Eriks. & E. Henn.), leaf rust (caused by Puccinia triticina Roberge ex Desmaz F. sp. tritici), and is moderately susceptible to Fusarium Head Blight (caused by Fusarium graminearum).
Tyndal is best suited for seed production in the light black and brown soils of the Canadian Prairie Province. The high biomass yield and the short awnlettes may make Tyndal suitable for greenfeed production in addition to silage in the Canadian Prairie Provinces.
Distribution rights have been granted to SeCan, 501–300 March Rd., Kanata, Ontario, K2K 2E2. Web site: http://www.secan.com (verified 11 July 2007). Plant Breeder's Rights have been applied for in Canada.
Breeder seed of Tyndal will be maintained by the Field Crop Development Centre, Alberta Agriculture and Food, 5030 50th St., Lacombe, AB, Canada, T4L 1W8. Requests for seed samples should be directed to the corresponding author for the first five years. After five years, seeds will be available from the National Small Grains Germplasm Collection of the National Germplasm System (http://www.ars-grin.gov/npgs/).
Footnotes
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.
Received for publication January 23, 2007.
References
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