Variability of in vitro digestibility among clones of bromegrass and orchardgrass

摘要: Individual clones of bromegrass (Bromus inermis Leyss) and orchardgrass (Dactylis glomerata L.) were harvested at corresponding stages maturity within each species. The in 1962, the vitro digestibility (IVD) was based on whole plant. Bromegrass clones, 1965 1966, separated into leaves stems. IVD component determined, from these, for plant estimated.Among 444 values ranged 49 to 68%. Most variation attributed genotypic effects. For approximately 250 bromegrass, 66 75%, 58 73%, 62 74%, leaves, stems, plants respectively. Over 2-year period, differences among stems significant. Correlations between leaf stem digestibilities significant but low magnitude. Ten had equal digestibility.In showed...