HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Betrán, F.J. Articles by Mayfield, K. Search for Related Content PubMed Articles by Betrán, F.J. Articles by Mayfield, K. Agricola Articles by Betrán, F.J. Articles by Mayfield, K.

REGISTRATIONS OF PARENTAL LINES

Registration of Tx114 Maize

Soil and Crop Sciences Dep., Texas A&M University, College Station, TX 77843-2474

^* Corresponding author (javier-betran{at}tamu.edu)

Tx114, a maize (Zea mays L.) parental line, (Reg. no. PL-313, PI 633839) was released February 2003 by the Texas Agricultural Experiment Station (TAES) at College Station, TX. This line was released for its potential to produce high-yielding white food corn hybrids. Tx114 is a B73 derivative with white grain, white cob, and southern U.S. adaptation. Tx114 combines well with subtropical or tropical white and non-Iowa Stiff Stalk Synthetic (non-BSSS) lines.

Tx114 was developed by pedigree breeding and has a pedigree of (K55/3*B73)-1-B-B-B-B where B stands for bulk of selfs. K55 is a line from Kansas developed from population "Pride of Saline" (Gerdes et al., 1993). Tx114 is a white-grained conversion of B73, which is a BSSS line developed at Iowa State University from BS13 (Russell, 1972). The initial cross between K55 and B73 was made at the TAES summer nursery, College Station, TX, in 1990. Subsequent selections in the backcross populations and selfing generations were made at College Station where local conditions are characterized by hot days and nights, high evapotranspiration, and significant grain mold pressure. Selections were based on maturity, grain color, endosperm texture, lodging, and plant characteristics. After the 5th selfing generation following the three backcrosses to B73, Tx114 has been increased either by sibmating or by bulking selfed ears. Despite continuous selfing, Tx114 continues to show phenotypic variation for plant height and vigor.

Tx114 has similar characteristics to B73 such as good seed-parent yields, acceptable stalk quality, and excellent combining ability. Tx114 has harder endosperm, is more vigorous, and has Southern adaptation relative to B73. Tx114 flowers about 1 to 2 d later than B73 at College Station. Tx114 ears have 16 to 18 rows and white cobs. Kernels are deep, dent and white. Plants are tall with intermediate ear placement and have dark green leaves that are erect above the ear. Tx114 has poor husk cover and it is susceptible to corn earworm (Helicoverpa zea Boddie) and southwestern corn borer (Diatraea grandiosella Dyar). Tassels are erect, short, fragile, and have few branches. It is an intermediate pollen shedder with good anthesis-silking synchronization.

Tx114 has been evaluated in hybrid combinations with other white inbred lines. Tx114 combines well with non-BSSS lines, and subtropical and tropical white lines such as CML78, CML343, CML373, and CML379. Tx114 hybrids had similar or superior grain yields compared with commercial white hybrids such as Pioneer Brand 32H39 and P30G40, and Asgrow RX901W and RX949W (Pietsch et al., 2000, 2001). Tx114 had the highest general combining ability for grain yield in a diallel among 12 elite white lines (Transue et al., 2002). Tx114 and its hybrids are susceptible to preharvest aflatoxin contamination by Aspergillus flavus Link:Fr. (Betrán et al., 2002).

Seed of Tx114 may be obtained from the corresponding author at the Department of Soil and Crop Sciences, Texas A&M University, College Station, TX 77843-2474.

ACKNOWLEDGMENTS

This research was supported in part by the Texas Corn Producers Board. We acknowledge the support of the TAMU Corn Breeding Program, Crop Testing Program, Cereal Quality Lab, and Research Stations staff involved in testing this line.

NOTES

Registration by CSSA.

Accepted for publication October 31, 2003.

REFERENCES

• Betrán, F.J., T. Isakeit, and G. Odvody. 2002. Aflatoxin accumulation of white and yellow maize inbreds in diallel crosses. Crop Sci. 42:1894–1901.[Abstract/Free Full Text]
• Gerdes, J.T., C.F. Behr, J.G. Coors, and W.F. Tracy. 1993. Compilation of North American maize breeding germplasm. CSSA, Madison, WI.
• Pietsch, D., L.W. Rooney, E. Riley, L. Synatschk, F.J. Betran, and F. Fojt, III. 2000. 2000 Texas food corn performance tests. Technical Report No. 2001–03. Texas Agric. Exp. Stn., College Station, TX.
• Pietsch, D., L.W. Rooney, D. Gualberto, J. Owen, F.J. Betran, and K. Mayfield. 2001. 2001 Texas food corn performance tests. Technical Report No. 2001–03. Texas Agric. Exp. Stn., College Station, TX.
• Transue, D., F.J. Betran, and S. Bhatnagar. 2002. Heterotic response of subtropical & tropical maize yellow inbreds across environments. In Agronomy Abstracts. ASA, Madison, WI.
• Russell, W.A. 1972. Registration of B70 and B73 parental lines of maize. Crop Sci. 12:721.[Free Full Text]

This article has been cited by other articles:

				F.J. Betran, A. Bockholt, F. Fojt III, K. Mayfield, and D. Pietsch Registration of Tx714 Maize Germplasm Line Crop Sci., May 1, 2004; 44(3): 1028 - 1028. [Full Text] [PDF]

				F.J. Betran, A. Bockholt, and F. Fojt III Registration of Tx745 Maize Germplasm Line Crop Sci., May 1, 2004; 44(3): 1029 - 1029. [Full Text] [PDF]

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Betrán, F.J. Articles by Mayfield, K. Search for Related Content PubMed Articles by Betrán, F.J. Articles by Mayfield, K. Agricola Articles by Betrán, F.J. Articles by Mayfield, K.