| |
Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/92/5/967 Last checked: 12/14/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/articles/92/5/967 Last checked: 12/14/2016 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Valente, Maria Eugenia;
Borreani, Giorgio;
Peiretti, Pier Giorgio;
Tabacco, Ernesto |
Author Affiliation: | Valente and Peiretti: Centro di Studio per 1'Alimentazione degli Animali in Produzione Zootecnica, Torino, Italy; Borreani and Tabacco: Department Agronomia, Selvicoltura e Gestione del Territorio, University of Turin, Turin, Italy |
Title: | Codified morphological stage for predicting digestibility of Italian ryegrass during the spring cycle |
Section: | Forages Other records with the "Forages" Section
|
Source: | Agronomy Journal. Vol. 92, No. 5, September/October 2000, p. 967-973. |
Publishing Information: | Madison, WI: American Society of Agronomy |
# of Pages: | 7 |
Keywords: | TIC Keywords: Digestibility; Lolium multiflorum; Morphology; Canopy; Growing degree days; Nitrogen fertilization; Classification; Life cycle; Spring; Forage crops; Growth stages; Comparisons; Fertilization rates; Flowering; Emergence; Temperatures; Models
|
Cultivar Names: | Asso; Barverdi; Tribune; Caramba; Barmultra; Malmi |
Geographic Terms: | Po Valley, Italy |
Abstract/Contents: | "A precise prediction of changes in digestibility of grasses during the growth cycle would allow targeting of harvests to desired levels of nutritive composition to meet specific animal requirements. In this study, regression analysis was used to formulate and test prediction equations for organic matter digestibility (OMD) of standing crops of Italian ryegrass (Lolium multiflorum Lam.) with codified morphological stage, canopy age, growing degree days (GDD), and N fertilization as independent variables. The field study was conducted for 7 yr with six Italian ryegrass cultivars, diversified for ploidy and earliness, grown in the western Po Valley (Italy). Nitrogen fertilizer was applied at various rates as top dressing. Sequential harvesting from early vegetative to full flowering provided herbage samples (n=153) varying in age and stage of development. The 0-400 classification system that was used to evaluate the morphological stage included four primary stages: vegetative, elongation, inflorescence emergence, and flowering. The OMD decreased from 928 to 576 g kg⁻^D1 |
Language: | English |
References: | 40 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Valente, M. E., G. Borreani, P. G. Peiretti, and E. Tabacco. 2000. Codified morphological stage for predicting digestibility of Italian ryegrass during the spring cycle. Agron. J. 92(5):p. 967-973. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=69214 |
| If there are problems with this record, send us feedback about record 69214. |
| Choices for finding the above item: |
| Web URL(s): https://dl.sciencesocieties.org/publications/aj/pdfs/92/5/967 Last checked: 12/14/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/articles/92/5/967 Last checked: 12/14/2016 Access conditions: Item is within a limited-access website |
| MSU catalog number: S 22 .A45 |
| Find from within TIC: Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |