scholarly journals CONTRIBUTION OF THE GENETIC IMPROVEMENT OF TALL FESCUE (Festuca arundinacea SCHREB.) IN ARGENTINA: SYNTHESIS OF ACHIEVEMENTS AND ADVANCES

2021 ◽  
Vol 32 (Issue 2) ◽  
pp. 8-12
Author(s):  
P. Rimieri

Tall fescue (Festuca arundinacea Schreb.) is represented in Argentina by adapted populations of the continental morphotype, which are long persistent. It is the main perennial forage species cultivated in the temperate region of the country, producing forage for extensive grazing. The development of fescue plant breeding and its contribution to the achievement of higher productivity and better nutritional value with modern synthetic cultivars was the aim of this project. The characters considered were: adaptation and persistence in adverse environments, digestibility, leaf softness and tolerance to rust. The most representative cultivars of the stages and selection criteria considered in this work were: Pergamino El Palenque MAG, Palenque Plus INTA, Brava INTA, Baguala and Luján INTA. Key words: tall fescue, plant breeding, cultivars, germplasm.

1993 ◽  
Vol 73 (4) ◽  
pp. 689-697 ◽  
Author(s):  
J. M. Bell

In this review canola meal (CM), its nutritionally significant components and the availability of its nutrients to poultry, pigs and cattle were discussed. Avenues for possible improvement in available energy, protein and lysine were identified. Recent findings on glucosinolates were also discussed with the conclusion that a further reduction of glucosinolates through plant breeding is both possible and desirable. The role of the anti-nutrients sinapine, tannins and phytic acid were also considered. The potential impact of improvements to CM on its economic value was examined using linear program least-cost ration formulations applied to typical market situations. Key words: Canola meal, energy, protein, carbohydrates, anti-nutritional factors, economics


1983 ◽  
Vol 57 (6) ◽  
pp. 1383-1391 ◽  
Author(s):  
C. P. Bagley ◽  
J. P. Fontenot ◽  
R. E. Blaser ◽  
K. E. Webb

1993 ◽  
Vol 73 (3) ◽  
pp. 843-844
Author(s):  
A. R. McElroy

AC Graze, tested as Syn-A, is a late-maturing forage-type tall fescue (Festuca arundinacea Schreb.) cultivar. It was developed by mass selection for vigor, persistence, leafiness and uniform maturity at the Plant Research Centre, Agriculture Canada, Ottawa. AC Graze yielded 105.3% of the test mean (seven cultivar, six station years) in Ontario Forage Crop Committee trials. Key words: Tall fescue, Festuca arundinacea Schreb.


1999 ◽  
Vol 79 (3) ◽  
pp. 361-363 ◽  
Author(s):  
A. Brégard ◽  
G. Allard

Developing leaf blades of tall fescue (Festuca arundinacea Schreb.) were subjected to three treatments that modify their source capacity: (1) emerged tips cut daily, (2) grown in darkness or (3) grown at the CO2 compensation point. Treated and control leaves developed similarly but treated leaves senesced rapidly at the leaf tip. Reduction of carbon availability in developing tall fescue leaf blades seems not to penalize normal blade development but does reduce the lifespan of mature leaves. Key words: Source, leaf development, tall fescue


2002 ◽  
Vol 82 (1) ◽  
pp. 89-92 ◽  
Author(s):  
J. R. Moyer ◽  
A. L. Boswall

Foxtail barley (Hordeum jubatum L.) is a troublesome weed in irrigated pastures. Several grass species seeded on two irrigated pastures at Lethbridge to test their ability to compete with foxtail barley. Tall fescue (Festuca arundinacea Schreb.) and creeping foxtail (Alopecurus arundinaceus Poir) reduced foxtail barley groundcover significantly compared to orchardgrass (Dactylis glomerata L.), pubescent wheatgrass (Agropyron trichophorum (Link) Richt.) and western wheatgrass (Agropyron smithii Rydb.); therefore, seeding of these grasses in areas subject to foxtail barley invasion should be encouraged. Key words: Foxtail barley, tall fescue, creeping foxtail, wet soils, salinity, weed suppression


Author(s):  
H.S. Easton ◽  
C.G. Pennell

Tall fescue (Festuca arundinacea Schreb.) has been shown to have great potential to supply quality forage through the summer in environments where the water regime limits performance of perennial ryegrass (Loliumperenne L.). The use of tall fescue seed in NZ has risen from almost none 15 years ago to about 200 tonnes today. However the further use of tall fescue is limited by the difficulty some farmers have in establishing it, particularly when performance is compared with perennial ryegrass. Experience is generally that the widely used imported cultivar AU Triumph establishes more vigorously than the NZ cultivar Grasslands Roa. Tall fescue breeding at AgResearch Grasslands has in the past 10 years concentrated on improving the vigour at establishment, while maintaining the excellent standard of forage quality achieved with Roa. Data are presented indicating substantial progress, with breeding line families outperforming all control cultivars. However, further data suggest a strong effect of conditions of seed ripening and harvest on the vigour of seed when sown. Data comparing different field multiplications and comparing breeding families harvested in the field and in the glasshouse confirm this. Field sowings and more controlled nursery box experiments are described. The paper discusses implications for plant breeding method and for seed production


Author(s):  
M.D. Rollo ◽  
G.W. Sheath ◽  
M.W.A. Slay ◽  
T.L. Knight ◽  
T.G. Judd ◽  
...  

Production of summer forage is an important consideration in environments prone to extremes of heat or moisture stress. Tall fescue (Festuca arundinacea) and chicory (Cichorum intybus) are two forage species with the potential to overcome the production shortfalls of perennial ryegrass (Lolium perenne) in such environments. Trials from three New Zealand regions prone to summer drought (Taranaki, Hawke's Bay and Canterbury) were used to compare production of tall fescue and chicory with production from resident ryegrass. Consistent production advantages from tall fescue and chicory were evident in the two years after establishment. Potential production advantages can disappear in subsequent years when summer moisture levels are very high or very low, or temperatures extremely high. Moderate moisture levels in summer, indicated by moderate ryegrass production, gave the biggest relative summer production advantages to tall fescue. Keywords: chicory, dryland, forage production, ryegrass, tall fescue


Author(s):  
J. Monk ◽  
E. Gerard ◽  
S. Young ◽  
K. Widdup ◽  
M. O'Callaghan

Tall fescue (Festuca arundinacea) is a useful alternative to ryegrass in New Zealand pasture but it is slow to establish. Naturally occurring beneficial bacteria in the rhizosphere can improve plant growth and health through a variety of direct and indirect mechanisms. Keywords: rhizosphere, endorhiza, auxin, siderophore, P-solubilisation


Author(s):  
B.R. Watkin

AN Aberystwyth selection of tall fescue (Festuca arundinacea Schreb.), known as S170, was sown with certified New Zealand white clover (Trifolium repens) and re' clover (T. pratense) and compared under sheep grazing with other grass/clover pastures at the Grasslands Division Regional Station at Lincoln (Watkin, 1975) .


Sign in / Sign up

Export Citation Format

Share Document