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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Perennial Ryegrass Allelopathic Potential on Bermudagrass Germination and Seedling Growth  [2010]

McCarty, Lambert B.; McCauley, Raymond K.; Liu, Haibo; Totten, F. Wesley; et al.

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Overseeded perennial ryegrass (Lolium perenne L.) aggressively competes with bermudagrass [Cynodon dactylon (L.) Pers.] for resources and may adversely affect spring transition by releasing allelochemicals into the environment. Growth chamber studies examined germination and growth of ‘Arizona Common’ bermudagrass in soil amended with 0%, 2%, 12%, or 23% perennial ryegrass root or shoot debris or in soil treated with irrigation water in which perennial ryegrass roots at 0, 5, 10, or 20 g·L–1 or shoots at 0, 10, or 20 g·L–1 had been soaked. Inhibitory effects on bermudagrass germination and growth were most extensive when soil was amended with ryegrass shoot debris, because germination, root ash weight, root length density, and root mass density were reduced 33%, 55%, 30%, and 52%, respectively. Soil amended with ryegrass root debris only inhibited bermudagrass-specific root length. Application of irrigation water containing either ryegrass root or shoot extracts only inhibited bermudagrass-specific root length. In conclusion, results obtained when soil was amended with shoot debris demonstrated perennial ryegrass can inhibit bermudagrass germination and growth in controlled environments.
From the journal
HortScience
ISSN : 0018-5345

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2015
Volume:
45
Issue:
12
Start Page:
1872
End Page:
1875
All titles:
"Perennial Ryegrass Allelopathic Potential on Bermudagrass Germination and Seedling Growth"@eng
Other:
"Includes references"
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2015
Volume:
45
Issue:
12
Start Page:
1872
End Page:
1875
All titles:
"Perennial Ryegrass Allelopathic Potential on Bermudagrass Germination and Seedling Growth"@eng
Other:
"Includes references"