| |
| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2005jou501.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
|---|
| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Bonos, Stacy A.;
Rush, Debra;
Hignight, Kenneth;
Langlois, Steve;
Meyer, William A. |
|---|
| Author Affiliation: | Bonos and Meyer: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey; Rush and Hignight: Advanta Seeds Pacific Inc., Albany, Oregon; Langlois: Pitman, New Jersey |
|---|
| Title: | The effect of selection on gray leaf spot resistance in perennial ryegrass |
|---|
| Section: | Genetics, breeding & variety evaluation
Other records with the "Genetics, breeding & variety evaluation" Section
|
|---|
| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
|---|
| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 1, 2005, p. 501-507. |
|---|
| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
|---|
| # of Pages: | 7 |
|---|
| Keywords: | TIC Keywords: Gray leaf spot; Disease resistance; Lolium perenne; Disease susceptibility; Cultivar improvement; Pyricularia grisea; Selection; Breeding; Germplasm
|
|---|
| Abstract/Contents: | "Perennial ryegrass (Lolium perenne L.) cultivars with resistance to gray leaf spot (caused by the fungus Pyricularia grisea (Cooke) Sacc.) would be beneficial to turf managers and the environment by reducing the need for fungicide applications. The objectives of this study were to: 1) determine broad sense heritability from 54 replicated experimental selections in two locations and 2) determine gain from two cycles of selection for gray leaf spot resistance in 8 different populations of perennial ryegrass in two locations. Survivors were selected separately from these populations following a natural epidemic of gray leaf spot in both 2001 and 2002 at Salem, NJ. The two selected cycles for each population were compared to the base population by comparing disease resistance in two perennial ryegrass field experiments established in 2003 at Adelphia and Salem, NJ. Susceptibility of germplasm to gray leaf spot was evaluated following ephemeral natural outbreaks of the disease that ocurred three to four weeks post seeding in both locations. Both cycles of selection showed steady dramatic improvements in gray leaf spot resistance compared to the unselected populations at both locations. The high broad-sense heritability estimate (0.95) was consistent with previous experiments of gray leaf spot resistance in perennial ryegrass. The steady realized gain was 31% from C0 to C1 and 57% from C1 to C2. This research indicates that continued selection for gray leaf spot resistance is important for the development of cultivars with improved disease resistance." |
|---|
| Language: | English |
|---|
| References: | 32 |
|---|
| Note: | Figures
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bonos, S. A., D. Rush, K. Hignight, S. Langlois, and W. A. Meyer. 2005. The effect of selection on gray leaf spot resistance in perennial ryegrass. Int. Turfgrass Soc. Res. J. 10(Part 1):p. 501-507. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=105433 |
| If there are problems with this record, send us feedback about record 105433. |
| Choices for finding the above item: |
|---|
| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2005jou501.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
| 
MSU catalog number: SB 433 .I52 v. 10 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
