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Test de 29 nouvel<strong>le</strong>s variétés de ray-grass d’Italie | Production végéta<strong>le</strong><br />
29 nuove varietà di loglio italico testate<br />
Testing of 29 new Italian ryegrass<br />
Riassunto<br />
Tra il 2007 e il 2009 <strong>le</strong> stazioni di ricerca<br />
Agroscope Reckenholz-Tänikon ART e<br />
Agroscope Changins-Wädenswil ACW<br />
hanno esaminato, nell'ambito di test<br />
varietali comparabili condotti in cinque<br />
Summary<br />
breeds<br />
From 2007 to 2009, Swiss research<br />
stations Agroscope Reckenholz-<br />
Tänikon ART and Agroscope Changins-<br />
Wädenswil ACW tested 39 varieties<br />
siti diversi, un tota<strong>le</strong> di 39 varietà di<br />
of Italian ryegrass, including 29 new<br />
loglio italico, tra cui 29 nuove otten-<br />
breeds, in comparative variety trials at<br />
zioni. Per valutare <strong>le</strong> varietà sono state<br />
five locations. The evaluation of the<br />
prese sistematicamente in considera-<br />
varieties was based on systematic<br />
zione <strong>le</strong> seguenti caratteristiche: resa,<br />
observations of yield, vigour, juveni<strong>le</strong><br />
aspetto genera<strong>le</strong>, precocità, forza di<br />
development, competitive ability,<br />
concorrenza, persistenza, idoneità allo<br />
winter hardiness, resistance to <strong>le</strong>af<br />
svernamento, resistenza a malattie<br />
diseases and bacterial wilt and of<br />
fogliari e batteriche, nonché digeribilità<br />
digestib<strong>le</strong> organic matter. Four new<br />
della sostanza organica. Visto i risultati<br />
breeds attained results allowing for<br />
ottenuti, 4 del<strong>le</strong> nuove varietà testate<br />
registration in the List of Recom-<br />
hanno potuto essere iscritte nella<br />
mended Varieties of Forage Plants:<br />
«Lista del<strong>le</strong> varietà raccomandate di<br />
Morunga, Zebra, Elvis and LI 0455,<br />
piante foraggiere». Si tratta del<strong>le</strong><br />
of which only the three former can be<br />
varietà Morunga, LI 0035, Elvis e<br />
recommended. LI 0455 cannot be now<br />
LI 0455. Per il momento soltanto, <strong>le</strong><br />
added to the list because it is not<br />
prime tre varietà menzionate possono<br />
eligib<strong>le</strong> for trade in Switzerland yet.<br />
essere raccomandate, poiché LI 0455,<br />
The formerly recommended variety<br />
per motivi <strong>le</strong>gali, non può essere ancora<br />
Abercomo did not achieve results<br />
messa in commercio. La varietà Aber-<br />
allowing for future recommendation<br />
como è stralciata dalla lista in quanto<br />
and will be omitted from the list.<br />
non risponde più ai requisiti necessari<br />
per essere una varietà raccomandata.<br />
Key words: Lolium multiflorum Lam.<br />
var. italicum Beck, Italian ryegrass,<br />
variety testing, yield, digestibility,<br />
disease resistance.<br />
Bibliographie<br />
▪▪<br />
Frick R., Jeangros B., Bertossa M., Suter D., Hirschi H. U. & Briner H. U.,<br />
2008. Liste 2009 – 2010 des variétés recommandées de plantes fourragères.<br />
Revue suisse Agric. 40 (5), I–VIII.<br />
▪▪<br />
Mosimann E., Frick R., Suter D. & Rosenberg E., 2008. Mélanges standard<br />
pour la production fourragère: Révision 2009–2012. Revue suisse Agric.<br />
40 (5), 1–12.<br />
▪▪<br />
Norris K. H., Barnes R. F., Moore J. E. & Shenk J. S., 1976. Predicting<br />
forage quality by infrared ref<strong>le</strong>ctance spectroscopy. Journal of Animal<br />
Science 43, 889–897.<br />
▪▪<br />
Ombabi A., Süderkum K.-H. & Taube F., 2001. Untersuchungen am Primäraufwuchs<br />
zweier Weidelgräser zur Dynamik der Veränderungen in<br />
der Verdaulichkeit und der Futteraufnahme durch Schafe. Journal of<br />
Animal Physiology and Animal Nutrition 85, 385 – 405.<br />
▪▪<br />
Schmidt D. & Nüesch B., 1980. Resistance to bacterial wilt (Xanthomonas<br />
graminis) increases yield and persistency of Lolium multiflorum. Bul<strong>le</strong>tin<br />
OEPP/EPPO Bul<strong>le</strong>tin 10, 335 – 339.<br />
▪▪<br />
Til<strong>le</strong>y J. & Terry R., 1963. A two stage technique for the in vitro digestion<br />
of forage crops. Journal of the British Grassland Society 18, 104–111.<br />
Recherche Agronomique Suisse 1 (7 – 8): 280–285, 2010<br />
285
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