Crop Science Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via ISI Web of Science (1)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.
Agricola
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.
Crop Science 42:2223-2224 (2002)
© 2002 Crop Science Society of America

REGISTRATIONS OF PARENTAL LINES

Registration of NM-7R1R5, a Dwarf Grain Pearl Millet Inbred Restorer Line

J.F. Rajewski, D.J. Andrews* and L.A. Pavlish

Dep. of Agronomy, Univ. of Nebraska, P.O. Box 830915, Lincoln, NE 68583-0915

* Corresponding author (dandrews2{at}unl.edu)

Dwarf grain pearl millet [Pennisetum glaucum (L.) R. Br.) inbred male fertility restorer R-line NM-7R1R5 (Reg. no. PL-43, PI 613117) was released by the Institute of Agriculture and Natural Resources, University of Nebraska, Lincoln, NE, in May 1998. NM-7R1R5 is a medium-late, dwarf, stiff-stalk line that fully restores male fertility on A1 (Burton, 1958) and A5 (Rai, 1995) cytoplasmic-nuclear male sterile (CMS) seed parents.

NM-7R1R5 (94M58001R) was selected at the Department of Agronomy Farm at the University of Nebraska's Agricultural Research and Development Center (ARDC), Mead, NE, in 1990 from a 1988 greenhouse selection derived from the cross ICMB 81//843B/PT732-9RF-MS. ICMB 81 is a dwarf line from ICRISAT that is resistant to downy mildew [caused by Sclerospora graminicola (Sacc.) J. Schröt.]. 843B is an ICRISAT reselection of KS 79-2068B from W.D. Stegmeier, Kansas State University, Hays, KS, and PT732-9RF-MS is a line from Tamil Nadu Agricultural University, Coimbatore, India. Pedigree selection for stiff stalk was continued in the 1991 and 1992 nurseries. A selection was testcrossed with CMS Tift 23DA1E1 and Tift 23DA4E1 (a CMS early-dwarf line in two separate cytoplasms from USDA-ARS and Univ. of Georgia, Tifton, GA) in 1992. The selection exhibited complete restoration of male fertility in the A1 cytoplasm and maintenance of male sterility in the A4 cytoplasm (Hanna, 1989). Selection for increased selfed seed set was continued to the F8 generation. Crosses made onto NM-2A5 and evaluated in 1999 indicated that NM-7R1R5 also restored male fertility in the A5 system (Rai, 1995).

NM-7R1R5 is a medium-late, dwarf, synchronous-tillering, inbred that averages 72 to 98 cm in height at maturity and flowers from 72 to 79 d after early to mid-June plantings at Lincoln, NE. NM-7R1R5 has yellow anthers, sheds pollen profusely, and has ovate shaped, light gray seeds (7.3 g per 1000 seed).

NM-7R1R5 has compact, candle-shaped panicles (20-cm length by 10-cm circumference at the base) and panicle exertion of 2 to 3 cm with a very stiff peduncle and stalk. NM-7R1R5 has semierect leaves and produces 2 to 3 tillers per plant which are upright in habit at high and low planting densities.

The main advantages of NM-7R1R5 as a pollen parent are its medium-late maturity, dwarf stature, stiff stalk, profuse pollen production, and complete restoration of male fertility in both the A1 and A5 CMS systems. These are highly desirable traits for use in pearl millet hybrid grain production in the midwestern USA. Yield performance tests in 1996 and 1997 in a limited number of A1 hybrid combinations indicated that NM-7R1 R5 had good combining ability for grain yield with several medium-maturity seed parents. Grain yields of individual hybrids at different locations ranged from 660 to 6540 kg ha-1. Lodging evaluation of NM-7R1R5 hybrids indicated that stiff-stalk trait reduced lodging in midwestern environments and could be very useful in future hybrid combinations with selected stiff-stalk seed parents. NM-7R1R5 is also a new source of male fertility restoration for the A5 CMS system, which currently has an insufficient number of R5 inbred dwarf lines (Rai, K.N., 1999, personal communication).

NM-7R1R5 is available for research purposes through the Department of Agronomy, University of Nebraska, Lincoln, NE 68583.

NOTES

Research funded in part by USAID Grant No. LAG-G-00-96-900090-00 through INTSORMIL, the International Sorghum and Millet CRSP. Journal Article No. 12948 by Univ. of Nebraska Agric. Res. Div. Registration by CSSA.

Accepted for publication April 30, 2002.

REFERENCES





This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via ISI Web of Science (1)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.
Agricola
Right arrow Articles by Rajewski, J.F.
Right arrow Articles by Pavlish, L.A.

HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome