| |
| Web URL(s): | http://archive.lib.msu.edu/tic/rpr/1988/14535,%20U%20Minnesota,%20White.PDF
Last checked: 01/23/2017
Requires: PDF Reader |
|---|
| Publication Type:
| Report |
|---|
| Material Type: | Manuscript |
|---|
| Monographic Author(s): | White, Donald B.; Watson, James; Ascher, Peter; Kaerwer, Howard; Ruemmele, Bridget A.; Berman, Steve; Ruser, Karl; Carlson, Phyllis H. |
|---|
| Author Affiliation: | White: Principal Investigator and Professor; Ascher: Cooperator and Professor; Ruemmele: Cooperator and Graduate Assistant; Berman and Carlson: Cooperator and Project Technician; and Ruser: Cooperator Project Scientist, Dept. of Horticultural Science and Landscape Architecture, University of Minnesota; Watson: Cooperator and Vice President, The Toro Company, Inc.; and Kaerwer: Cooperator and Retired Research Director, Northrup King Co., Inc. |
|---|
| Monograph Title: | Improvement of Poa annua for Golf Turf: [1988 Annual Research Report], 1988. |
|---|
| Publishing Information: | [Minneapolis, Minnesota]: Department of Horticultural Science and Landscape Architecture, University of Minnesota |
|---|
| # of Pages: | 15 |
|---|
| Collation: | [15] pp. |
|---|
| Abstract/Contents: | "Severe drought and heat conditions resulted in identification of stress tolerant strains of Poa annua and Poa supina. Summer dormancy mechanisms were observed in several materials in the field. All these materials were collected, increased and established in a new field space planting. New materials were added to the program from Alabama, California, Texas, Rhode Island, and Minnesota. Several Tall seeded accessions were collected in Northern Minnesota. Stolons of Poa annua and Poa supina maintained viability throughout 24 weeks of cold storage. Chlorophyll (green color) was maintained in the dark cold storage in Poa annua for 12 weeks. Replicated plantings of 8 selections were established at 18 golf courses located in 16 different states for evaluation. Progeny testing is being conducted for heritability for materials up to the 7th generation from when received. Seed dormancy of up to 3 months was found in some biotypes. Divergence - Incongruity (Barriers to crossing and hybridization) were found. The phenomena were found in materials that were collected from wide geographic areas. For instance, materials from Arizona will not cross with materials from western Canada and materials from New York did not cross as well as local materials with Canadian materials. The "floral pic" technique for isolation and control of crossing performed equally well whether the carbon sources was sucrose or fructose sugar. Approximately 1,000 matings and seed collections were accomplished with the floral pic technique and analysis of resulting data is underway. Analysis of data indicates that, with some biotype, more than twice as much seed is produced from sib crossing as with selfs or crosses. This information is extremely important to developing a seed production system. 27 different esterases were found in 54 Poa annua biotypes while 23 were displayed by 10 Poa supina biotypes. The electrophoretic gels of the 64 biotypes displayed 46 different esterase patterns. Poa annua was separable from Poa supina and pedigree relationships were distinguishable in some crosses and selfs. Papers on stolon storage, electrophoresis, reproductive biology in poas, and chemical suppression of flowering to maintain pure stands were or will be presented at Society meetings. Experiments demonstrated that Poa annua and Poa supina are resistant to the grass herbicide Sethoxydin. In addition to maintaining the vitality of the project, the work for 88-89 will focus on seed production evaluations and problems and field evaluation of selected materials." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| See Also: | See also related summary article, "Improvement of Poa annua and Poa supina for golf turf", 1988 Turfgrass Research Summary [USGA/GCSAA], 1988, pp. 18-19, R=14535. R=14535 |
|---|
| Note: | "Progress Report # 5"
"October 1888 [1988]"
Pictures, color |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
No defined citation format for TGIF #: 240106 |
| Fastlink to access this record outside TGIF: https://tic.lib.msu.edu/tgif/flink?recno=240106 |
| If there are problems with this record, send us feedback about record 240106. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://archive.lib.msu.edu/tic/rpr/1988/14535,%20U%20Minnesota,%20White.PDF
Last checked: 01/23/2017
Requires: PDF Reader |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
