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THE EFFECT OF NURSERY CONDITIONS ON THE IN VITRO DIGESTIBILITY OF TIMOTHY (Phleum pratense L.)
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| Zeitschriftentitel: | Canadian Journal of Plant Science |
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| Personen und Körperschaften: | , |
| In: | Canadian Journal of Plant Science, 66, 1986, 2, S. 307-313 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Canadian Science Publishing
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| Schlagwörter: |
| Zusammenfassung: | <jats:p> Fifteen timothy (Phleum pratense L.) genotypes of similar maturity were grown in simulated sward (100 plants m<jats:sup>−2</jats:sup>), spaced-plant (1 plants m<jats:sup>−2</jats:sup>) and growth room nurseries for 2 yr or harvests. The whole plant in vitro digestibility (IVD) was determined at early heading. IVD values were strongly influenced by growing conditions and highly significant [Formula: see text] year × genotype and harvest × genotype interactions were found. The precision of IVD determination was similar in all nurseries. Correlation between genotype means of simulated sward and other nurseries, although significant [Formula: see text] is some cases, was too low to be of predictive value. Some genotypes tended to rank relatively high in all nurseries, but the relative performance of most genotypes was inconsistent. It is concluded that the choice of nursery techniques used to predict the sward performance of timothy genotypes is more critical than is generally assumed.Key words: Timothy, Phleum pratense L., in vitro digestibility, IVD, nursery competition </jats:p> |
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| Umfang: | 307-313 |
| ISSN: |
0008-4220
1918-1833 |
| DOI: | 10.4141/cjps86-044 |