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| DOI: | 10.2135/cropsci2005.0135 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/46/1/98
Last checked: 11/16/2016
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https://dl.sciencesocieties.org/publications/cs/pdfs/46/1/98
Last checked: 11/16/2016
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| Publication Type:
| Refereed |
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| Author(s): | Leyronas, C.;
Mériaux, B.;
Raynal, G. |
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| Author Affiliation: | Leyronas and Raynal: UMR Epidémiologie végétale et écologie des populations, INRA-INA, Thiverval-Grignon, France; and Mériaux: FNAMS, Le Verger, Brain sur l'Authion, France |
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| Title: | Chemical control of Neotyphodium spp. endophytes in perennial ryegrass and tall fescue seeds |
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| Section: | Forage and grazinglands
Other records with the "Forage and grazinglands" Section
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| Source: | Crop Science. Vol. 46, No. 1, January/February 2006, p. 98-104. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 7 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/46/1/98
Last checked: 11/16/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Fungicide evaluation; Phytotoxicity; Germination; Chemical control; Lolium perenne; Festuca arundinacea; Neotyphodium; Endophytes; Fungi; Seed production; Prochloraz
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| Abstract/Contents: | "Seed transmitted Neotyphodium endophytes are widespread in grasses. These fungi may modify agronomic plant traits and induce synthesis of mycotoxins that lead to possible cattle toxicoses. For these reasons, the Technical Permanent Committee for Breeding recommends the grass varieties submitted to the French Official List to contain less than 20% of seeds with living Neotyphodium. Several fungicides were tested as seed treatments on perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinacea Schreber). Phytotoxic effects were measured. Their efficacy was evaluated in greenhouse and in field conditions of seed production. Triticonazole [(RS)-(E)-5-(4-chlorobenzylidene)-2,2-dimethyl-1-(1H-1,2 ,4-triazol-1-ylmethyl) cyclopentanol] was effective but much to phytotoxic. The tested doses of bitertanol [1-(biphenyl-4-yloxy)-3,3-dimethy-1-(H-1,2,4)butan-2-ol] and fluquinconazole [3-(2,4-dichlorophenyl)-6-fluoro-2-(1H-1,2,4-triazol-1- yl)quinazolin-4(3H)-one] have few negative effects on germination but very few effects on endophytes. Prochloraz [N-propyl-N-[2-(2,4,6-trichlorophenoxy)ethyl]-1H -imidazole-1-carboxamide] (0.75 g kg-1) represents the best balance between high efficacy and low phytotoxicity on perennial ryegrass and tall fescue seeds. No difference among varieties and species was detected in their response to prochloraz treatment. In greenhouse trials, less than 10% of living endophyte remained in perennial ryegrass and tall fescue seed lots, even in highly infected ones (66% of E+ seeds), when treated with prochloraz. This seed treatment was also efficient in field conditions where the level of endophyte was reduced by more than 60% in highly endophyte-infected ryegrass seed lots. This study shows that, even if seed germination is a little decreased, prochloraz could be used during grass breeding so that subsequent generations of seed will be free from enophyte with good germination rate." |
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| Language: | English |
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| References: | 26 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Leyronas, C., G. Raynal, and B. Mériaux. 2006. Chemical control of Neotyphodium spp. endophytes in perennial ryegrass and tall fescue seeds. Crop Sci. 46(1):p. 98-104. |
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| DOI: 10.2135/cropsci2005.0135 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/46/1/98
Last checked: 11/16/2016
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/46/1/98
Last checked: 11/16/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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