AC Splendor orchardgrass (Dactylis glomerata L)

1994 ◽  
Vol 74 (3) ◽  
pp. 553-553
Author(s):  
A. R. McElroy
Keyword(s):  
Stem Rust ◽  
Dactylis Glomerata ◽  
Phenotypic Selection ◽  
Winter Hardiness ◽  
Forage Yield ◽  
Research Centre ◽  
Puccinia Graminis ◽  
Plant Research ◽  
Dactylis Glomerata L

AC Splendor is a late-maturing orchardgrass (Dactylis glomerata L.) cultivar. It was developed by phenotypic selection within cv. Rideau for winter hardiness, yield, persistence and absence of stem rust (Puccinia graminis) at the Plant Research Centre. Agriculture and Agri-Food Canada, Ottawa. Its forage yield was 103.2% of cv. Kay over 15 station years in Ontario. Yield in second and subsequent production years was 101.7% of cv. Kay over 8 station years. Key words:Dactylis glomerata L., orchardgrass

AC Nordic orchardgrass (Dactylis glomerata L.)

1993 ◽  
Vol 73 (3) ◽  
pp. 845-846 ◽  
Author(s):  
A. R. McElroy
Keyword(s):  
Key Words ◽  
Stem Rust ◽  
Dactylis Glomerata ◽  
Research Centre ◽  
Mass Selection ◽  
Puccinia Graminis ◽  
Plant Research ◽  
Selection For ◽  
Dactylis Glomerata L

AC Nordic is a late-maturing orchardgrass (Dactylis glomerata L.) cultivar. It was developed by mass selection for yield, persistence and resistance to stem rust (Puccinia graminis) at the Plant Research Centre, Agriculture Canada, Ottawa. Its yield was similar to that of cv. Sumas in a total of 33 station years in Quebec. Yield in second and subsequent production years was 101.6% of cv. Sumas over 19 station years. Key words: Dactylis glomerata L., orchardgrass

scholarly journals Recurrent restricted phenotypic selection for forage yield in timothy and orchardgrass

1995 ◽  
Vol 75 (4) ◽  
pp. 871-875 ◽  
Author(s):  
D. Shateryan ◽  
B. E. Coulman ◽  
D. E. Mather
Keyword(s):  
Recurrent Selection ◽  
Dactylis Glomerata ◽  
Phenotypic Selection ◽  
Phleum Pratense ◽  
Forage Yield ◽  
Correlated Responses ◽  
Plant Persistence ◽  
Selection For ◽  
Dactylis Glomerata L ◽  
Phleum Pratense L

Three cycles of recurrent restricted phenotypic selection for forage yield were carried out in orchardgrass (Dactylis glomerata L. 'Avon' and 'Pennlate') and timothy (Phleum pratense L. 'Salvo' and 'Drummond'). The objectives of this study were to measure the effectiveness of this selection and to assess whether the selection produced any correlated responses on other characters. The three selected cycles and the original populations (cycle 0) were evaluated in both sward and space-planted experiments over a period of 4 yr. For the majority of the years of evaluation, there were no significant (P < 0.05) differences in forage yield among the different selection cycles. Under space-planted evaluation, cycle 3 of Drummond timothy was lower in both forage and seed yield than the other populations. In general, there was a trend to taller plants with greater circumferences in orchardgrass, and shorter, smaller plants in timothy over selection cycles. Selection had little effect on plant persistence and maturity. In conclusion, three cycles of recurrent restricted phenotypic selection were not effective in improving the forage yield of timothy or orchardgrass. Key words: Timothy, Phleum pratense, orchardgrass, Dactylis glomerata, recurrent selection

Kayak orchardgrass

2007 ◽  
Vol 87 (4) ◽  
pp. 905-906 ◽  
Author(s):  
S. N. Acharya ◽  
D. R. Friebel ◽  
Y. Castonguay
Keyword(s):  
Key Words ◽  
Seed Yield ◽  
Dactylis Glomerata ◽  
Forage Yield ◽  
Research Centre ◽  
Western Canada ◽  
Early Maturing ◽  
Dactylis Glomerata L ◽  
High Forage ◽  
Better Than

Kayak is a high yielding early maturing orchardgrass (Dactylis glomerata L.) cultivar with good level of winterhardiness suited for silage and hay production in western Canada including interior British Columbia. The population was developed at the Agriculture and Agri-Food Canada (AAFC) Research Centre, Lethbridge, AB. In BC and Western Forage Trials (WFTests), Kayak yielded 4% better than the check cultivar Kay under both rain fed and irrigated conditions. Kayak orchardgrass produces 10% more seed yield than Kay while its seed size is slightly smaller than Kay. Key words: Orchardgrass, Dactylis glomerata, high forage yield, winterhardy

Chilliwack-VR orchardgrass

2006 ◽  
Vol 86 (1) ◽  
pp. 173-175 ◽  
Author(s):  
S. Bittman ◽  
S. N. Acharya ◽  
D. E. Hunt
Keyword(s):  
Dactylis Glomerata ◽  
Mottle Virus ◽  
Research Centre ◽  
Temperate Climate ◽  
Food Research ◽  
The Pacific ◽  
Southern Alberta ◽  
Dactylis Glomerata L ◽  
Cocksfoot Mottle Virus ◽  
Better Than

Chilliwack-VR is a medium-maturing orchardgrass (Dactylis glomerata L.) population with high levels of resistance to Cocksfoot Mottle Virus (CfMV) suited to silage and hay production in regions with a moderate temperate climate. The population was developed at the Pacific Agri-Food Research Centre (PARC), Agriculture and Agri-Food Canada (AAFC), Agassiz, BC, in collaboration with AAFC Research Centre, Lethbridge, AB. In BC trials, Chilliwack-VR yielded 5% more than the check cultivar Potomac without inoculation with CfMV and 23% better than the check when inoculated with the virus. In a southern Alberta trial, Chilliwack-VR survived for 3 yr and yielded as much biomass as a winterhardy check cultivar, Kay. Key words: Orchardgrass, Cocksfoot Mottle Virus resistance, Dactylis glomerata

Cheam-VR orchardgrass

2006 ◽  
Vol 86 (1) ◽  
pp. 169-171
Author(s):  
S. Bittman ◽  
S. N. Acharya ◽  
D. E. Hunt
Keyword(s):  
Dactylis Glomerata ◽  
Mottle Virus ◽  
Research Centre ◽  
Temperate Climate ◽  
Food Research ◽  
The Pacific ◽  
Southern Alberta ◽  
Dactylis Glomerata L ◽  
Cocksfoot Mottle Virus ◽  
Better Than

Cheam-VR is an early-maturing orchardgrass (Dactylis glomerata L.) cultivar with high levels of resistance to Cocksfoot Mottle Virus (CfMV) suited to silage and hay production in regions with moderate temperate climate. The population was developed at the Pacific Agri-Food Research Centre (PARC), Agriculture and Agri-Food Canada (AAFC), Agassiz, BC, in collaboration with AAFC Research Centre, Lethbridge, AB. In BC trials, Cheam-VR yielded 6% better than the check cultivar Potomac without inoculation with CfMV and 15% more than the check when inoculated with the virus. In a southern Alberta trial, Cheam-VR survived for 3 yr and yielded 6% more than a winterhardy check cultivar, Kay. Key words: Orchardgrass, Cocksfoot Mottle Virus resistance, Dactylis glomerata

Genetics of post-drought recovery, persistence and summer dormancy in orchardgrass (Dactylis glomerata)

2018 ◽  
Vol 69 (11) ◽  
pp. 1140
Author(s):  
Fatemeh Pirnajmedin ◽  
Mohammad Mahdi Majidi ◽  
Fatemeh Saeidnia ◽  
Behnam Hoseini ◽  
Aghafakhr Mirlohi ◽  
...  
Keyword(s):  
Yield Components ◽  
Deficit Irrigation ◽  
Dactylis Glomerata ◽  
Phenotypic Selection ◽  
Forage Yield ◽  
Genetic Progress ◽  
Narrow Sense Heritability ◽  
Regulated Deficit Irrigation ◽  
Summer Dormancy ◽  
Drought Recovery

The genetic basis of post-drought recovery, summer dormancy and persistence under drought stress is little investigated in orchardgrass (Dactylis glomerata L.). In this study, polycross populations (half-sib genotypes) were evaluated under normal and regulated deficit irrigation for 3 years (2012–14) in the field. Irrigation was then withheld in 2015, and the genotypes were evaluated for post-drought recovery and persistence. The results showed that regulated deficit irrigation decreased forage yield, yield components, persistence and recovery. A broad range of general combining ability was observed for most of the measured traits. Moderate to high estimation of narrow-sense heritability for yield components, persistence, recovery and summer dormancy index indicated that phenotypic selection may be successful to attain genetic progress. Under deficit irrigation, flowering time was positively correlated with persistence and recovery, indicating that selection based on lateness would lead to improvement in these traits. Stable and superior families across environments were identified based on regression coefficients and principle component analysis that would be desirable in future breeding programs.

Haida-VR orchardgrass

2006 ◽  
Vol 86 (1) ◽  
pp. 177-179
Author(s):  
S. Bittman ◽  
S. N. Acharya ◽  
D. E. Hunt
Keyword(s):  
Dactylis Glomerata ◽  
Mottle Virus ◽  
Research Centre ◽  
Temperate Climate ◽  
Food Research ◽  
The Pacific ◽  
Southern Alberta ◽  
Dactylis Glomerata L ◽  
Cocksfoot Mottle Virus ◽  
Better Than

Haida-VR is a latematuring orchardgrass (Dactylis glomerata L.) cultivar with high levels of resistance to Cocksfoot Mottle Virus (CfMV) suited to silage and hay production in regions with moderate, temperate climate. The cultivar was developed at the Pacific Agri-Food Research Centre (PARC), Agriculture and Agri-Food Canada (AAFC), Agassiz, British Columbia (BC) in collaboration with AAFC Research Centre, Lethbridge, Alberta. In BC trials, Haida-VR yielded 3% more than the check cultivar Potomac without inoculation with CfMV and 21% better than the check when inoculated with the virus. In a southern Alberta trial, Haida-VR survived for 3 yr and yielded 3% better than a winterhardy check cultivar, Kay. Key words: Orchardgrass, Cocksfoot Mottle Virus resistance, Dactylis glomerata

Genetic progress from 40 years of orchardgrass breeding in North America measured under management-intensive rotational grazing

2001 ◽  
Vol 81 (4) ◽  
pp. 713-721 ◽  
Author(s):  
M. D. Casler ◽  
S. L. Fales ◽  
D. J. Undersander ◽  
A. R. McElroy
Keyword(s):  
North America ◽  
North American ◽  
Dactylis Glomerata ◽  
Grazing Pressure ◽  
Forage Yield ◽  
Rotational Grazing ◽  
Genetic Progress ◽  
State College ◽  
The North ◽  
Dactylis Glomerata L

There has been considerable activity in breeding orchardgrass (Dactylis glomerata L.) cultivars in North America during the latter half of the 20th century. The objective of this study was to determine if genetic improvements in the North American orchardgrass germplasm pool have been realized or can be detected under management intensive grazing. Forty-three orchardgrass cultivars, in three maturity groups, representing adapted North American germplasm and potentially unadapted European germplasm, were evaluated under management-intensive rotational grazing at two locations in the northern USA. Cultivar means varied for apparent preference and this variation was largely due to herbage availability at State College, PA, where grazing pressure was relatively high, but to other factors at Arlington, WI, where grazing pressure was relatively low. North American cultivars tended to have higher net herbage accumulation than European cultivars, corresponding well to differences in forage yield of hay plots. Orchardgrass cultivars that were significantly higher in hay yield than their predecessors showed mixed results with respect to net herbage accumulation under grazing: some increases, some decreases, and some with no change. These results indicate that an individual orchardgrass cultivar can be well adapted to both management systems, only one of the two systems, or neither system. Genetic increases in net herbage accumulation may occur serendipitously, but directed selection for specific traits that confer productivity under grazing, or net herbage accumulation per se, will probably ensure a higher probability of success for an orchardgrass breeding program directed to pastures. Key words: Dactylis glomerata, cultivar evaluation, breeding, selection, grazing

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