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| DOI: | 10.1017/wsc.2016.28 |
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| Web URL(s): | http://www.bioone.org/doi/pdf/10.1017/wsc.2016.28
Last checked: 06/14/2017
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http://www.bioone.org/doi/full/10.1017/wsc.2016.28
Last checked: 06/14/2017
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Bararpour, Mohammad T.;
Norsworthy, Jason K.;
Burgos, Nilda R.;
Korres, Nicholas E.;
Gbur, Edward E. |
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| Author Affiliation: | Bararpour: Research Associate, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR; Korres: Postdoctoral Research Associate, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR; Norsworthy, Burgos, and Gbur: Professor, Department of Crop, Soil and Environmental Sciences, University of Arkansas, Fayetteville, AR |
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| Title: | Identification and biological characteristics of ryegrass (Lolium spp.) accessions in Arkansas |
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| Source: | Weed Science. Vol. 65, No. 3, May/June 2017, p. 350-360. |
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| Publishing Information: | Champaign, Illinois: Weed Science Society of America |
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| # of Pages: | 11 |
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| Related Web URL: | http://www.bioone.org/doi/abs/10.1017/wsc.2016.28
Last checked: 06/14/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Characteristics; Lolium multiflorum; Lolium perenne; Lolium rigidum; Morphological evaluation; Weed identification
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| Geographic Terms: | Arkansas |
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| Abstract/Contents: | "Italian ryegrass is a major weed problem in wheat production worldwide. Field studies were conducted at Fayetteville, AR, to assess morphological characteristics of ryegrass accessions from Arkansas and differences among other Lolium spp.: Italian, rigid, poison, and perennial ryegrass. Plant height, plant growth habit, plant stem color, and node color were recorded every 2 wk until maturity. The number of tillers per plant, spikes per plant, and seeds per plant were recorded at maturity. All ryegrass accessions from Arkansas were identified as Italian ryegrass, which had erect to prostrate growth habit, green to red stem color, green to red nodes, glume (10 mm) shorter than spikelet (19 mm), and medium seed size (5 to 7 mm) with 1 to 3mm awns. However, significant variability in morphological characteristics was found among Arkansas ryegrass accessions. When Lolium species at the seedling stage (1- to 2-wk-old plants) were compared, poison ryegrass was characterized as having a large main-stem diameter and wide droopy leaves, whereas perennial ryegrass exhibited a short and a very narrow leaf blade. These two can be distinguished from Italian and rigid ryegrass, which have leaf blades wider than perennial ryegrass but narrower than poison ryegrass. Italian and rigid ryegrass are difficult to distinguish at the seedling stage but are distinct at the reproductive stage. At maturity, Italian ryegrass and poison ryegrass seeds are awned, but perennial and rigid ryegrass seeds are awnless. Poison ryegrass awns were at least 4-fold longer than Italian ryegrass awns. Perennial ryegrass flowered 3 wk later than the other species. Poison ryegrass glumes were longer than the spikelets, whereas Italian ryegrass glumes were shorter than the spikelets. Morphological traits indicate that some Italian ryegrass populations are potentially more competitive and more fecund than others." |
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| Language: | English |
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| References: | 46 |
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| Note: | Pictures, color
Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bararpour, M. T., J. K. Norsworthy, N. R. Burgos, N. E. Korres, and E. E. Gbur. 2017. Identification and biological characteristics of ryegrass (Lolium spp.) accessions in Arkansas. Weed Sci. 65(3):p. 350-360. |
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| DOI: 10.1017/wsc.2016.28 |
| Web URL(s):
http://www.bioone.org/doi/pdf/10.1017/wsc.2016.28
Last checked: 06/14/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website
http://www.bioone.org/doi/full/10.1017/wsc.2016.28
Last checked: 06/14/2017
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2203399a |
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