BARRIER ALFALFA

1987 ◽  
Vol 67 (3) ◽  
pp. 827-830 ◽  
Author(s):  
M. R. HANNA ◽  
H. C. HUANG
Keyword(s):  
British Columbia ◽  
Medicago Sativa ◽  
Verticillium Wilt ◽  
Bacterial Wilt ◽  
Wilt Disease ◽  
Good Resistance ◽  
Southern Alberta ◽  
Cultivar Description ◽  
Medicago Sativa L

Barrier is the first Canadian cultivar of alfalfa (Medicago sativa L.) developed with resistance to verticillium wilt disease. It also has very good resistance to bacterial wilt. Barrier is adapted to the irrigated areas in Southern Alberta and British Columbia where these diseases are prevalent.Key words: Medicago sativa L., alfalfa, cultivar description, verticillium wilt, bacterial wilt

AC Longview alfalfa

2000 ◽  
Vol 80 (3) ◽  
pp. 613-615 ◽  
Author(s):  
S. N. Acharya ◽  
H. C. Huang
Keyword(s):  
British Columbia ◽  
Disease Resistance ◽  
Medicago Sativa ◽  
Key Words ◽  
Verticillium Wilt ◽  
Bacterial Wilt ◽  
Research Centre ◽  
Western Canada ◽  
Cultivar Description ◽  
Medicago Sativa L

AC Longview alfalfa (Medicago sativa L.) was developed by the Agriculture and Agri-Food Canada Research Centre, Lethbridge, Alberta. This cultivar, tested as LRS 93-1 in Uniform Alfalfa Tests in western Canada, is highly resistant to verticillium wilt (VW) and bacterial wilt (BW) and out-yielded Beaver (check) by about 9 and 12% in dryland and irrigated locations, respectively. AC Longview is well suited for hay production, dehydration and silage in areas of western Canada, including British Columbia, where VW or BW reduces alfalfa yield and stand life. This cultivar produces good amount of seed both under dryland and irrigated conditions of western Canada. Key words: Cultivar description, alfalfa, Medicago sativa, disease resistance

AC Blue J alfalfa

1995 ◽  
Vol 75 (2) ◽  
pp. 469-471 ◽  
Author(s):  
S. N. Acharya ◽  
H. C. Huang ◽  
M. R. Hanna
Keyword(s):  
Medicago Sativa ◽  
Key Words ◽  
Verticillium Wilt ◽  
Bacterial Wilt ◽  
Resistant Cultivar ◽  
Research Centre ◽  
Western Canada ◽  
Medicago Saliva ◽  
Cultivar Description

AC Blue J alfalfa (Medicago saliva L.) was developed by the Agriculture and Agri-Food Canada Research Centre, Lethbridge, Alberta. This verticillium wilt and bacterial wilt resistant cultivar outyielded Beaver by about 8% in 4-yr trials and 15% in 7-yr trials in western Canada. It is well suited for hay production, dehydration, and silage in areas where verticillium wilt reduces alfalfa yield and stand life. Key words: Cultivar description, alfalfa, Medicago sativa

Dalton alfalfa

2008 ◽  
Vol 88 (3) ◽  
pp. 523-525
Author(s):  
S. N. Acharya
Keyword(s):  
Medicago Sativa ◽  
Key Words ◽  
Seed Production ◽  
Verticillium Wilt ◽  
Bacterial Wilt ◽  
Research Centre ◽  
Western Canada ◽  
Rainfed Conditions ◽  
Cultivar Description

Dalton alfalfa (Medicago sativa) was developed by the Agriculture and Agri-Food Canada Research Centre, Lethbridge, Alberta. This cultivar, tested as LRC01CR in western Canada, is derived from parental clones that are both bacterial wilt (BW) and verticillium wilt (VW) resistant. When grown under irrigated and rainfed conditions for forage it out yielded Beaver (check) by 3%, for seed it out yielded Beaver on irrigation by 19%. Dalton is well suited to forage and seed production in western Canada where VW may be of concern. Key words: Cultivar description, alfalfa, Medicago sativa

OAC MINTO ALFALFA

1984 ◽  
Vol 64 (2) ◽  
pp. 419-421
Author(s):  
B. R. CHRISTIE ◽  
R. J. BENNETT
Keyword(s):  
Medicago Sativa ◽  
Key Words ◽  
Bacterial Wilt ◽  
Winter Hardiness ◽  
Science Department ◽  
Crop Science ◽  
Herbage Yield ◽  
Cultivar Description ◽  
Medicago Sativa L ◽  
High Level

OAC Minto is a new cultivar of alfalfa (Medicago sativa L.) developed by the Crop Science Department, University of Guelph. It was licensed for sale in Canada on 28 Jan. 1983. OAC Minto is medium maturing, has a high level of resistance to bacterial wilt (Corynebacterium insidiosum (McCull.) Jens.) and is very winterhardy. It is higher in herbage yield than the cultivar Iroquois and is similar in yield to 520.Key words: Alfafla, cultivar description, winter hardiness

Impact of cultivars and herbicides on weed management in alfalfa

2006 ◽  
Vol 86 (3) ◽  
pp. 875-885 ◽  
Author(s):  
J. R. Moyer ◽  
S. N. Acharya
Keyword(s):  
British Columbia ◽  
Weed Control ◽  
Weed Management ◽  
Forage Quality ◽  
Western Canada ◽  
Downy Brome ◽  
Weed Species ◽  
Standard Type ◽  
Southern Alberta ◽  
Medicago Sativa L

Weeds, especially dandelion (Taraxacum officinale Weber in F.H. Wigg.), tend to infest a forage alfalfa (Medicago sativa L.) stand 2 to 4 yr after establishment. To develop better weed management systems, experiments were conducted at Lethbridge, Alberta, from 1995 to 2002 and Creston, British Columbia, from 1998 to 2001, which included the alfalfa cultivars Beaver (standard type) and AC Blue J (Flemish type) and annual applications of metribuzin and hexazinone. These herbicides are registered for weed control in irrigated alfalfa in Alberta and alfalfa grown for seed. In addition, two sulfonylurea herbicides, metsulfuron and sulfosulfuron, and glyphosate were included. All of the herbicides except glyphosate controlled or suppressed dandelion and mustard family weeds. Metsulfuron at 5 g a.i. ha-1 almost completely controlled dandelion at both locations. However, after metsulfuron application at Lethbridge, dandelion was replaced with an infestation of downy brome, which is unpalatable for cattle. None of the herbicides increased total forage (alfalfa + weed) yield, and in some instances herbicides reduced forage quality by causing a shift from a palatable to an unpalatable weed species. However, it was observed that AC Blue J consistently yielded more than Beaver, and weed biomass was consistently less in the higher-yielding cultivar. AC Blue J was developed primarily for the irrigated area in southern Alberta and for southern British Columbia. Therefore, additional experiments should be conducted to determine which alfalfa cultivars have the greatest ability to compete with weeds in other regions of western Canada. Key words: Alfalfa yield, dandelion, forage quality, weed control

IRRIGATION MANAGEMENT OF ALFALFA FOR SEED

1977 ◽  
Vol 57 (3) ◽  
pp. 891-896 ◽  
Author(s):  
K. K. KROGMAN ◽  
E. H. HOBBS
Keyword(s):  
Soil Moisture ◽  
Medicago Sativa ◽  
Seed Production ◽  
Irrigation Management ◽  
Growing Season ◽  
Moisture Stress ◽  
Field Plot ◽  
Southern Alberta ◽  
Medicago Sativa L ◽  
Seed Yields

In field plot experiments conducted in southern Alberta over a 6-yr period, highest seed yields of alfalfa (Medicago sativa L. cv. Beaver) were obtained with one or two irrigations in the first half of the growing season. In outdoor lysimeters protected from rain, moisture stress for more than 8 days before seed ripening severely reduced seed production. Under field conditions, stored soil moisture from irrigation during the vegetative stage of growth plus occasional rain in July and August permitted irrigation of alfalfa for seed to be stopped at the bud to early bloom stage (June to early July).

AC Caribou alfalfa

1992 ◽  
Vol 72 (3) ◽  
pp. 845-847
Author(s):  
R. Michaud ◽  
C. Richard
Keyword(s):  
Medicago Sativa ◽  
Research Station ◽  
Clavibacter Michiganensis ◽  
Maritime Provinces ◽  
Phytophthora Megasperma ◽  
Phytophthora Root Rot ◽  
Clavibacter Michiganensis Subsp ◽  
Cultivar Description ◽  
Medicago Sativa L ◽  
Moderately Resistant

AC Caribou alfalfa (Medicago sativa L.) is a cultivar developed by the Agriculture Canada Research Station in Sainte-Foy. It is similar to Iroquois in maturity, rate of growth, and fall dormancy. It is highly resistant to bacterial wilt (caused by Clavibacter michiganensis subsp. insidiosus (McCulloch) Davis, Gillaspie, Vidaver & Harris), resistant to verticillium wilt (caused by Verticillium albo-atrum Reinke & Berth.), and moderately resistant to phytophthora root rot (caused by Phytophthora megasperma Dreschs. f. sp. medicaginis T. Kuan & D. C. Erwin). AC Caribou, an alfalfa with fine leafy stems, is well suited for production in Quebec and the Maritime Provinces where winter survival may be a problem.Key words: Alfalfa, Medicago sativa, cultivar description

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