scholarly journals Genetic modification of western wheatgrass (Pascopyrum smithii) for the phytoremediation of RDX and TNT

Planta ◽  
2018 ◽  
Vol 249 (4) ◽  
pp. 1007-1015 ◽  
Author(s):  
Long Zhang ◽  
Elizabeth L. Rylott ◽  
Neil C. Bruce ◽  
Stuart E. Strand
Keyword(s):  
Genetic Modification ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass

scholarly journals Rathayibacter agropyri (non O’Gara 1916) comb. nov., nom. rev., isolated from western wheatgrass (Pascopyrum smithii)

2018 ◽  
Vol 68 (5) ◽  
pp. 1519-1525 ◽  
Author(s):  
Brenda K. Schroeder ◽  
William L. Schneider ◽  
Douglas G. Luster ◽  
Aaron Sechler ◽  
Timothy D. Murray
Keyword(s):  
Pascopyrum Smithii ◽  
Western Wheatgrass

scholarly journals Optimizing irrigation and nitrogen fertilization for seed yield in western wheatgrass [Pascopyrum smithii (Rydb.) Á. Löve] using a large multi-factorial field design

PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0218599 ◽  
Author(s):  
Zhao Chen ◽  
Xv Liu ◽  
Junpeng Niu ◽  
Wennan Zhou ◽  
Tian Zhao ◽  
...  
Keyword(s):  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass

Effects of Agaricus lilaceps Fairy Rings on Soil Aggregation and Microbial Community Structure in Relation to Growth Stimulation of Western Wheatgrass (Pascopyrum smithii) in Eastern Montana Rangeland

2013 ◽  
Vol 66 (1) ◽  
pp. 120-131 ◽  
Author(s):  
The Can Caesar-TonThat ◽  
Erin Espeland ◽  
Anthony J. Caesar ◽  
Upendra M. Sainju ◽  
Robert T. Lartey ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Growth Stimulation ◽  
Soil Aggregation ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass ◽  
Fairy Rings ◽  
Stimulation Of

scholarly journals Seed yield can be explained by altered yield components in field-grown western wheatgrass (Pascopyrum smithii Rydb.)

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhao Chen ◽  
Junpeng Niu ◽  
Xinlong Cao ◽  
Wenbo Jiang ◽  
Jian Cui ◽  
...  
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Antagonistic Effect ◽  
Yield Component ◽  
Direct Selection ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass ◽  
Selection For ◽  
High Seed Yield

AbstractWestern wheatgrass (Pascopyrum smithii Rydb.) is an important cool-season forage and turfgrass. However, due to seed dormancy and poor seedling vigor, it is difficult to develop high seed yield production systems, and assessing these components in response to seed yield. Based on multifactor orthogonally designed field experimental plots under various field management regimes, the effects of numbers of fertile tillers m−2 (Y1), spikelets/fertile tiller (Y2), florets/spikelet (Y3), seed numbers/spikelet (Y4), and seed weight (Y5) on seed yield (Z) were determined over three successive years. Correlation analysis indicated that fertile tillers (Y1) was the most important seed yield component. And the biggest contribution of those five yield component is fertile tillers (Y1), followed by seed numbers/spikelet (Y4), spikelets/fertile tiller (Y2), florets/spikelet (Y3) and seed weight (Y5), respectively. By using ridge regression analysis, we have developed an accurate model of seed yield with its five components. Finally, the results of synergism and antagonism among these yield components on seed yield showed that fertile tillers and seed numbers/spikelet had an antagonistic effect on seed yield. Therefore, selection for high seed yield by direct selection for large values of fertile tillers and seed numbers/spikelet would be the most effective breeding strategy for western wheatgrass.

Population and Environmental Effects on Seed Production, Germination, and Seedling Vigor in Western Wheatgrass ( Pascopyrum smithii [Rydb.] A. Löve)

Crop Science ◽  
2006 ◽  
Vol 46 (6) ◽  
pp. 2503-2508 ◽  
Author(s):  
Blair L. Waldron ◽  
Joseph G. Robins ◽  
Kevin B. Jensen ◽  
Antonio J. Palazzo ◽  
Timothy J. Cary ◽  
...  
Keyword(s):  
Seed Production ◽  
Environmental Effects ◽  
Seedling Vigor ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass

Merits of native and introduced Triticeae grasses on semiarid rangelands

2001 ◽  
Vol 81 (1) ◽  
pp. 45-52 ◽  
Author(s):  
K. H. Asay ◽  
W. H. Horton ◽  
K. B. Jensen ◽  
A. J. Palazzo
Keyword(s):  
Summer Precipitation ◽  
Native Grasses ◽  
Plant Materials ◽  
Pascopyrum Smithii ◽  
Western Wheatgrass ◽  
Plant Persistence ◽  
Weedy Species ◽  
Water Limitations ◽  
Moisture Conditions ◽  
Range Seeding

Experiments were conducted on four semiarid range sites to compare stand establishment, productivity, and persistence of several introduced perennial Triticeae grasses with that of their native counterparts. On Intermountain sites with severe water limitations (< 300 mm), native grasses were more difficult to establish, less productive, and less persistent than the introduced grasses. Stands of native grasses declined most rapidly under defoliation. At locations where moisture conditions were more favorable, particularly where more summer precipitation occurred, native Triticeae grasses established and persisted relatively well compared with the introduced entries. Although difficult to establish, stands of the rhizomatous native, western wheatgrass [Pascopyrum smithii (Rydb.) A. Löve] in creased during the seasons after establishment. Choice of plant materials to be used in range seeding programs should be based on objective criteria. To do otherwise will perpetuate degradation of soil resources, especially on sites that are dominated by weedy annual species such as cheatgrass (Bromus tectorum) and medusahead rye (Taeniatherum asperum). It is proposed that adapted introduced grasses be equally considered along with native grasses as a component of seed mixtures on environmentally harsh sites that have been burned, infested with competitive weedy species, or otherwise degraded. Key words: Grass breeding, revegetation, introduced grasses, Triticeae, cheatgrass, seedling vigor, plant persistence

Sign in / Sign up

Export Citation Format

Share Document