|BAENZIGER, P - University Of Nebraska|
|REGASSA, T - University Of Nebraska|
|NELSON, L - University Of Nebraska|
|KLEIN, R - University Of Nebraska|
|SANTRA, D - University Of Nebraska|
|BALTENSPERGER, D - Texas A&M University|
|KRALL, J - University Of Wyoming|
|XU, L - University Of Nebraska|
|WEGULO, S - University Of Nebraska|
|Kolmer, James - Jim|
Submitted to: Journal of Plant Registrations
Publication Type: Germplasm Registration
Publication Acceptance Date: 9/8/2011
Publication Date: 9/8/2011
Citation: Baenziger, P.S., Graybosch, R.A., Regassa, T., Nelson, L.A., Klein, R.N., Santra, D.K., Baltensperger, D.D., Krall, J.M., Xu, L., Wegulo, S.N., Jin, Y., Kolmer, J.A., Chen, M., Bai, G. 2011. Registration of 'NI04421' hard red winter wheat. Journal of Plant Registrations. 6:54-59. DOI: 10.3198/jpr2011.02.0102crc.
Interpretive Summary: Irrigation systems have revolutionized and increased agricultural production in the northern Great Plains. In Nebraska and neighboring states, maize and soybean production provides the greatest demand for irrigation. However, increasing fuel costs, climatic changes, and the depletion of natural aquifers might limit future available water for irrigation systems. Winter wheat cultivation, however demands far less water per acre than maize or soybean. In the future, it is expected that center pivot and other irrigation systems will be deployed more in wheat cultivation. Historically, wheat breeders in the region have concentrated on the production of wheat for dryland cropping systems. Wheat for irrigated agriculture has different requirements, including shorter plant height, better resistance to lodging, and improved disease resistance. To meet this anticipated demand for wheats specifically adapted to irrigation, USDA-ARS cooperated with the University of Nebraska to develop NI04421, the first Nebraska-adapted wheat specifically developed for irrigated systems.
Technical Abstract: Water for irrigation is a major constraint in the Great Plains and it is expected that the proportion of irrigated crop land to grow irrigated wheat will increase to conserve irrigation water. 'NI04421' (Reg. No. PI 659690) hard red winter wheat (Triticum aestivum L.) was developed cooperatively by the Nebraska Agricultural Experiment Station and the USDA-ARS and released in 2010 by the developing institutions and the Wyoming Agricultural Experiment Station. NI04421 was released primarily for its superior performance under irrigation and rainfed conditions in western Nebraska and eastern Wyoming. NI04421 was selected from the cross NE96644/Wahoo (sib) where the pedigree of NE96644 is ‘Odesskaya P’/ ‘Cody’//’Pavon 76’/*3 ‘Scout 66’. The cross was made in the spring of 1998. NI04421 was selected using a modified bulk breeding method as an F3:4 line (F3-derived line in the F4 generation) in 2002, and in 2004 was assigned experimental line number NI04421. After extensive testing it was released in July 2010.