Comparison of alkaloid content and nutritive value for tryptamine- and β-carboline-free cultivars of reed canarygrass (Phalaris arundinacea L.)

Abstract

(-10 to -20'C) until time of feeding. Cultivar differences were not observed (P > 0.05) for intake with the initial growth or the regrowth forage. Apparent digestibility of dry matter was 8.4and 5.5% units higher (P < 0.05) in Rival than in Venture for initial growth and regrowth, respectively. Similarly, apparent digestibilities of acid detergent fiber and NDF were higher (P < 0.05) for Rival than for Venture at both stages of growth. Forage CP levels differed between cultivars for initial growth; however, levels were comparable for regrowth. In the regrowth, apparent digestibility of CP for Rival was greater (P < 0.05) than for Venture.

Biomass Yield and Quality of Reed Canarygrass under Five Harvest Management Systems for Bioenergy Production

“…Each experiment included the following seven cultivars or germplasm: Bellevue [10], Common (unknown origin), Palaton [14], PSC1142 (unreleased experimental line), Rival [30], Vantage [4], and Venture [15]. The seeding rate for all entries was 11.2 kg ha −1 .…”

Reed Canary Grass (Phalaris arundinacea) as a Biological Model in the Study of Plant Invasions

“…It has been repeatedly introduced for a variety of purposes, which undoubtedly contributes to its success as an invader. First, many low alkaloids cultivars have been bred and introduced throughout North America (Coulman et al, 1977;Ostrem, 1987;Wittenberg et al, 1992;Coulman, 1995;Narasimhalu et al, 1995). These cultivars are used as a pure or mixture forage crop (Buxton et al, 1998;Ostrem, 1988a;Sheaffer and Marten, 1992), or as persistent perennial cover for permanent pastures (Casler et al, 1998;Hoveland, 1992;Kading and Kreil, 1990;Riesterer et al, 2000b).…”

Somaclonal breeding of reed canarygrass (Phalaris arundinacea L.)

“…One reason could be the tetraploid character of reed canarygrass (2n ¼ 4x ¼ 28) which has existed without any strong selection pressure in the wild with continuous exposure to outcrossing, resulting in the preservation of the wide variability in the population from which the control clones were sampled (Wittenberg et al, 1992;Coulman, 1996). One reason could be the tetraploid character of reed canarygrass (2n ¼ 4x ¼ 28) which has existed without any strong selection pressure in the wild with continuous exposure to outcrossing, resulting in the preservation of the wide variability in the population from which the control clones were sampled (Wittenberg et al, 1992;Coulman, 1996).…”

“…Another aspect of the results is the high pre-existing genetic variation observed among natural vegetative clones. One reason could be the tetraploid character of reed canarygrass (2n ¼ 4x ¼ 28) which has existed without any strong selection pressure in the wild with continuous exposure to outcrossing, resulting in the preservation of the wide variability in the population from which the control clones were sampled (Wittenberg et al, 1992;Coulman, 1996). Furthermore, polyploid monocotyledonous plants possess phenotypic plasticity (i.e.…”