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Title: REGISTRATION OF 'INTRADA' WHEAT

Author
item CARVER, BRETT - OKLAHOMA STATE UNIV
item KRENZER, EUGENE - OKLAHOMA STATE UNIV
item HUNGER, ROBERT - OKLAHOMA STATE UNIV
item KLATT, ART - OKLAHOMA STATE UNIV
item Porter, David
item VERCHOT, J - OKLAHOMA STATE UNIV
item RAYAS-DURATE, PATRICIA - OKLAHOMA STATE UNIV
item GUENZI, ARRON - OKLAHOMA STATE UNIV
item MARTIN, BJORN - OKLAHOMA STATE UNIV
item BAI, G - OKLAHOMA STATE UNIV

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 12/1/2002
Publication Date: 5/1/2003
Citation: CARVER, B.F., KRENZER, E.G., HUNGER, R.M., KLATT, A.R., PORTER, D.R., VERCHOT, J., RAYAS-DURATE, P., GUENZI, A.C., MARTIN, B.C., BAI, G. REGISTRATION OF 'INTRADA' WHEAT. CROP SCIENCE. 2003. v. 43: p. 1135-1136.

Interpretive Summary: 'Intrada' is a hard white winter wheat (Triticum aestivum L.) developed cooperatively by the Oklahoma Agricultural Experiment Station, Kansas Agricultural Experiment Station, and the USDA-ARS, and released in September, 2000, in cooperation with the USDA-ARS. Intrada was released for its high yield and test weight potential in the southern High Plains and for its end-use value in domestic and export bread markets. Its name acknowledges a new era of wheat breeding at Oklahoma State University (OSU) devoted to hard white wheat cultivar development and research. Intrada is a F3-derived line selected from the cross, Rio Blanco/TAM 200. The original cross, as well as the F1, F2, and F3 populations, were produced at Hays, KS, from which Intrada was identified as an F4 head row and entered into a preliminary yield trial in Kansas in 1993. Seed from these plots were provided to OSU and other public institutions in the fall of 1993; in all, 180 lines were donated as experimental lines for research and for reselection as possible cultivars. From 1994 to 2000, Intrada was tested as OK95G701 in Oklahoma performance trials, and it was extensively evaluated in a subset of the 180 lines for kernel color expression. Intrada is semidwarfed, and medium-short in stature, intermediate for winter dormancy release and for heading date, moderately sensitive to lodging, moderately tolerant to soil acidity, and susceptible to pre-harvest sprouting. Its plant height is similar to Chisholm and Trego, but 4 cm shorter than Jagger and 3 cm shorter than 2174. Intrada reaches the first-hollow-stem stage about 15 days later than one of the earliest cultivars monitored in Oklahoma (Heyne) and 20 days earlier than one of the latest (Prowers). Its dormancy release is similar to TAM 107 and Custer. Heading date is about 1 d earlier than Trego, similar to 2174, and 3 d later than Jagger. Propensity for root lodging is slightly less than Trego but substantially more than the highly tolerant cultivar, 2174. Tolerance to soil acidity is greater than Trego, similar to 2174, and less than Jagger. Intrada's pre-harvest sprouting tolerance is inferior to its white wheat parent, Rio Blanco, and similar to Arlin. Percent sprouted kernels from detached, artificially misted spikes harvested at physiological maturity equaled 65% (Intrada), 25% (Rio Blanco), and 77% (Arlin), whereas the respective germination index values equaled 27%, 16%, and 40%.

Technical Abstract: 'Intrada' is a hard white winter wheat (Triticum aestivum L.) developed cooperatively by the Oklahoma Agricultural Experiment Station, Kansas Agricultural Experiment Station, and the USDA-ARS, and released in September, 2000, in cooperation with the USDA-ARS. Intrada was released for its high yield and test weight potential in the southern High Plains and for its end-use value in domestic and export bread markets. Its name acknowledges a new era of wheat breeding at Oklahoma State University (OSU) devoted to hard white wheat cultivar development and research. Intrada is a F3-derived line selected from the cross, Rio Blanco/TAM 200. The original cross, as well as the F1, F2, and F3 populations, were produced at Hays, KS, from which Intrada was identified as an F4 head row and entered into a preliminary yield trial in Kansas in 1993. Seed from these plots were provided to OSU and other public institutions in the fall of 1993; in all, 180 lines were donated as experimental lines for research and for reselection as possible cultivars. From 1994 to 2000, Intrada was tested as OK95G701 in Oklahoma performance trials, and it was extensively evaluated in a subset of the 180 lines for kernel color expression. Intrada is semidwarfed, and medium-short in stature, intermediate for winter dormancy release and for heading date, moderately sensitive to lodging, moderately tolerant to soil acidity, and susceptible to pre-harvest sprouting. Its plant height is similar to Chisholm and Trego, but 4 cm shorter than Jagger and 3 cm shorter than 2174. Intrada reaches the first-hollow-stem stage about 15 days later than one of the earliest cultivars monitored in Oklahoma (Heyne) and 20 days earlier than one of the latest (Prowers). Its dormancy release is similar to TAM 107 and Custer. Heading date is about 1 d earlier than Trego, similar to 2174, and 3 d later than Jagger. Propensity for root lodging is slightly less than Trego but substantially more than the highly tolerant cultivar, 2174. Tolerance to soil acidity is greater than Trego, similar to 2174, and less than Jagger. Intrada's pre-harvest sprouting tolerance is inferior to its white wheat parent, Rio Blanco, and similar to Arlin. Percent sprouted kernels from detached, artificially misted spikes harvested at physiological maturity equaled 65% (Intrada), 25% (Rio Blanco), and 77% (Arlin), whereas the respective germination index values equaled 27%, 16%, and 40%.