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a Panhandle Res. and Ext. Ctr., Univ. of Nebraska, Scottsbluff, NE 69361
b Dep. of Agronomy, Univ. of Nebraska, Lincoln, NE 68583
c Dep. of Agronomy, Univ. of Nebraska, Lincoln
* Corresponding author (dbaltensperger1{at}unl.edu)
NE-1 (Reg. no. GP-88, PI 583348) is a white-seeded proso millet (Panicum miliaceum L.) developed by the Nebraska Agricultural Experiment Station. It was released for seed production in February 1995.
NE-1 was selected from the cross NE830141/NE83019. The expanded pedigree is Minn 402/2*‘Dawn’//‘Panhandle’/2*Dawn/3/Minn 402//Dawn/Panhandle. The cross was made, and F2 seed was produced in the greenhouse during the winter of 1985–1986. NE-1 is an increase of an F4 line selected in 1988 and tested as NE860203. NE-1 was not released as a cultivar because of its small seed size. It has potential as a germplasm because of high yield potential, lodging tolerance, high grain volume weight, and mid-season maturity.
NE-1 has a white seed coat (lemma and palea) and a compactum (closed) type panicle. The foliage is green in color and is similar to ‘Sunup’ (Nelson, 1990).
NE-1 has been tested in Nebraska yield nurseries since 1988 and in regional trials from 1991 to 1998. In regional trials, average grain yields were similar to Sunup, ‘Sunrise’ (Baltensperger et al., 1997), ‘Huntsman’ (Baltensperger et al., 1995b), ‘Earlybird’ (Baltensperger et al., 1995a) and ‘Rise’ (Nelson, 1984), and it yielded 24 and 18% greater than Panhandle (Wietgrefe, 1990, p.184) and Minco (Robinson, 1976), respectively.
NE-1 is similar in maturity to Rise, Earlybird, and Sunup and earlier than Huntsman. Heading date varies with planting date and heat unit accumulation, but is generally around the first week in August. Seed size of NE-1 (159 seeds g–1) is similar to Rise and Sunup and 9% smaller than Earlybird. NE-1 had the lowest general combining ability for seed size as determined on the basis of a diallel analysis of the cultivars Earlybird, Huntsman, Dawn (Nelson, 1976), Rise, and Sunrise (Yu, 1996). Grain volume weight of NE-1 (726 g l–1) is not significantly different from Sunup (721 g l–1). The straw strength of NE-1 is similar to Sunup. It has been less susceptible to lodging than Panhandle, ‘Cope’ (Hinze et al., 1978), or Minco. NE-1 is similar to Rise, Huntsman, Sunrise, and Earlybird in plant height and averages 6 cm shorter than Cope.
NE-1 has shown no susceptibility to Russian wheat aphid [Diuraphis noxia (Mordvilko)]. No observations have been made of relative resistance to other insects or diseases in the 7 yr it has been tested.
Breeder seed of NE-1 will be maintained by the Nebraska Agricultural Experiment Station. Seed can be obtained for research and breeding purposes from the senior author. NE-1 will not be submitted for U.S. Plant Variety Protection.
NOTES
NE-1 was developed with partial financial support from the Anna Elliott Foundation. Contribution no. 14128 from the Nebraska Agric. Res. Div., Registration by CSSA.
Accepted for publication December 31, 2003.
REFERENCES
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