Étude des variations de radiosensibilité des semences d'orge (Hordeum vulgare) en fonction de la teneur en eau

1991 ◽  
Vol 69 (2) ◽  
pp. 311-315 ◽  
Author(s):  
M. I. Arabi ◽  
G. Barrault ◽  
A. Sarrafi ◽  
L. Albertini
Keyword(s):  
Hordeum Vulgare ◽  
Relative Humidity ◽  
Key Words ◽  
Water Content ◽  
Free Water ◽  
Key Words Barley ◽  
Teneur En Eau ◽  
Sorption Curve

The study of the sorption curve representing the development of water content versus relative humidity, in barley seeds (cv. Thibaut), shows that water is present in three different states: constitutive water at less than 8.1%, absorption water between 8.1 and 10.9%, and free water at more than 10.9%. Along with these water states, radiosensitivity is respectively high, low, and high. The seeds detached from the rachis have less radioresistance than the attached ones. However this difference in behaviour is reduced when the water content is high (presence of free water). We also observed that growth was stimulated by weak doses of irradiation (20 Gy), whatever the water content. Key words: barley, Hordeum vulgare, radiosensitivity, water content, seeds, rachis.

Kernel colour varies with cultivars and environments in barley

1998 ◽  
Vol 78 (2) ◽  
pp. 217-222 ◽  
Author(s):  
M. J. Edney ◽  
T. M. Choo ◽  
D. Kong ◽  
T. Ferguson ◽  
K. M. Ho ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
Western Canada ◽  
Net Blotch ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Key Words Barley

Kernel colour is an important marketing trait for both malting and feed barleys. Therefore a study was initiated to investigate the kernel colour of 75 Canadian barley (Hordeum vulgare L.) cultivars at three locations (Charlottetown, Ottawa and Bentley) across Canada in 1991 and 1992. Kernel colour was measured by an Instrumar Colormet Spectrocolorimeter. Kernel colour was found to be brighter at the two locations in eastern Canada (Charlottetown and Ottawa) than at the location in western Canada (Bentley). Two-row cultivars on average were more discoloured than six-row cultivars; eastern two-row were more discoloured than western two-row. Covered barleys were less discoloured than hulless barleys in five of the six environments, but covered barleys at Bentley in 1992 were more discoloured than hulless barleys. Kernel discolouration appeared to be associated with susceptibility to net blotch for six-row cultivars. More studies are needed on kernel discolouration of barley. Key words: Barley, Hordeum vulgare, kernel colour

AC Alma barley

1997 ◽  
Vol 77 (4) ◽  
pp. 635-637 ◽  
Author(s):  
T. M. Choo ◽  
R. A. Martin ◽  
K. M. Ho ◽  
G. Atlin ◽  
R. Walton ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Lodging Resistance ◽  
Barley Breeding ◽  
Breeding Group ◽  
Key Words Barley ◽  
Cultivar Description

AC Alma is a six-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture and Agri-Food Canada. It has high yield and excellent lodging resistance. AC Alma performed well across Eastern Canada. Key words: Barley, Hordeum vulgare L., cultivar description, high yield, lodging resistance

scholarly journals Yield and Yield Components of Barley (Hordeum vulgare L.) in Relation to Sowing Times

1970 ◽  
Vol 15 ◽  
pp. 139-145 ◽  
Author(s):  
MZ Alam ◽  
SA Haider ◽  
NK Paul
Keyword(s):  
Hordeum Vulgare ◽  
Field Experiment ◽  
Key Words ◽  
Yield Components ◽  
Harvest Index ◽  
Hordeum Vulgare L ◽  
Sowing Time ◽  
Barley Cultivars ◽  
Key Words Barley ◽  
Yield And Yield Components

A field experiment was carried out to study the influence of sowing times on yield and yield components of barley (Hordeum vulgare L.). Seeds of four barley cultivars (BB 1, Karan 19, Karan 163 and Karan 351) were sown with four sowing times (5 November, 17 November, 29 November and 11 December). Most of the yield and yield components were significantly highest in 17 November sowing. Among the cultivars most of the characters showed their highest values in BB 1 and the lowest in Karan 19. Harvest index was found highest in Karan 351 and lowest in BB 1. Key words: Barley, Sowing time, Yield.   doi: 10.3329/jbs.v15i0.2154   J. bio-sci. 15: 139-145, 2007

AC Kings barley

2001 ◽  
Vol 81 (3) ◽  
pp. 427-429
Author(s):  
T. M. Choo ◽  
S. ter Beek ◽  
R. A. Martin ◽  
K. M. Ho ◽  
C. D. Caldwell ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
Seed Weight ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Lodging Resistance ◽  
Barley Breeding ◽  
Key Words Barley ◽  
Cultivar Description

AC Kings is a two-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture an d Agri-Food Canada. It has high yield, excellent seed weight, and lodging resistance. AC Kings performs well in Ontario and in the Maritime Region of Canada. Key words: Barley, Hordeum vulgare L., cultivar description, high yield, high seed weight

AC Parkhill barley

2000 ◽  
Vol 80 (2) ◽  
pp. 339-340 ◽  
Author(s):  
K. M. Ho ◽  
T. M. Choo ◽  
R. A. Martin ◽  
J. Rowsell ◽  
L. Guillemette
Keyword(s):  
Hordeum Vulgare ◽  
Powdery Mildew ◽  
Key Words ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Barley Breeding ◽  
Breeding Group ◽  
Key Words Barley

AC Parkhill is a two-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture and Agri-Food Canada. It has high yield and resistance to powdery mildew. AC Parkhill is well adapted to Ontario. Key words: Barley, Hordeum vulgare L., two-row barley, yield

AC Malone barley

2000 ◽  
Vol 80 (3) ◽  
pp. 597-598 ◽  
Author(s):  
T. M. Choo ◽  
J. C. Li ◽  
R. A. Martin ◽  
K. M. Ho
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
Somaclonal Variation ◽  
Callus Culture ◽  
High Yield ◽  
Barley Cultivar ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Key Words Barley ◽  
Cultivar Description

AC Malone is a six-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture and Agri-Food Canada. It was derived from callus culture of Léger barley. To our knowledge, AC Malone is the world's first barley cultivar selected from somaclonal variation. AC Malone performs well in Ontario, Canada. Key words: Barley, Hordeum vulgare L., cultivar description, somaclonal variation, high yield

AC Westech barley

1999 ◽  
Vol 79 (2) ◽  
pp. 249-250 ◽  
Author(s):  
T. M. Choo ◽  
J. M. Ye ◽  
R. A. Martin ◽  
K. M. Ho ◽  
G. Atlin ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
Doubled Haploid ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Lodging Resistance ◽  
Good Test ◽  
Key Words Barley ◽  
Cultivar Description

AC Westech is a doubled-haploid derived, six-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture and Agri-Food Canada. It has high yield, good test weight, and lodging resistance. AC Westech performs well in the Maritime Region of Canada. Key words: Barley, Hordeum vulgare L., cultivar description, doubled haploid

Almonte barley

2000 ◽  
Vol 80 (2) ◽  
pp. 337-338
Author(s):  
K. M. Ho ◽  
T. M. Choo ◽  
R. A. Martin ◽  
J. Rowsell ◽  
L. Guillemette
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
High Yield ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Lodging Resistance ◽  
Breeding Group ◽  
Key Words Barley

Almonte is a two-row, spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Breeding Group, Agriculture and Agri-Food Canada. It has high yield and good lodging resistance. Almonte is well adapted to Ontario. Key words: Barley, Hordeum vulgare L., two-row barley, high yield, lodging resistance

Evaluation of barley cultivars for resistance to ergot fungus, Claviceps purpurea (Fr.) Tul.

1994 ◽  
Vol 74 (3) ◽  
pp. 663-665 ◽  
Author(s):  
D. Pageau ◽  
J.-M. Wauthy ◽  
J. Collin
Keyword(s):  
Hordeum Vulgare ◽  
Genetic Variability ◽  
Key Words ◽  
Natural Infection ◽  
Claviceps Purpurea ◽  
Hordeum Vulgare L ◽  
Barley Cultivars ◽  
Key Words Barley ◽  
Adaptation Test

From 1988–1990, entries of a barley (Hordeum vulgare L.) adaptation test were evaluated under conditions of natural infection for resistance to the ergot fungus (Claviceps purpurea L. (Fr.) Tul.). The study was conducted at four sites in the Lac-St-Jean region of Quebec, Canada, where the disease is endemic. Cultivars Laurier (3-yr test), Maskot and Sabina (2-yr test) were the most resistant with sclerotial content below 0.10%. Cultivars Albany and Leger (3-yr test), Symko and Morrison (2-yr test) were the most susceptible. Results indicate there is genetic variability for ergot resistance in barley. This resistance may be useful in control of ergot under conditions of natural infection. Key words: Barley, ergot, resistance

Effects of environment and cultivar on total mixed-linkage β-glucan content in eastern and western Canadian barleys (Hordeum vulgare L.)

1995 ◽  
Vol 75 (2) ◽  
pp. 371-376 ◽  
Author(s):  
P. Narasimhalu ◽  
D. Kong ◽  
T. M. Choo ◽  
K. M. Ho ◽  
T. Ferguson ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
The Other ◽  
Food Type ◽  
Western Canada ◽  
Hordeum Vulgare L ◽  
Key Words Barley ◽  
The Mean

Two-row and six-row barley (Hordeum vulgare L.) cultivars, originating from eastern and western Canada were grown in six environments across Canada. The grain was studied for the effects of environment and cultivar on the total mixed-linkage β-glucan content (TBG, g hg−1 DM). Environment significantly affected TBG content in barley. TBG content differed among the 32 eastern or 43 western Canadian cultivars but the mean TBG for the eastern cultivars was not different from the mean of western cultivars. All eastern cultivars were hulled-feed types, and their TBG ranged from 3.31 in Micmac to 4.09 in Birka for two-row barleys, and from 3.78 in OAC Kippen to 4.41 in Maskot for six-row barleys. Western hulled cultivars which included feed and malt types, contained TBG ranging from 3.37 in Manley to 4.14 in Betzes for two-row barleys, and from 3.71 in Heartland to 4.42 in Tankard for six-row barleys. The two-row hulless cultivar, Condor, contained more TBG (4.69) than the other two hulless cultivars, CDC Richard (3.91) and Scout (3.85). The six-row hulless cultivars, CDC Buck and Tupper, were equal in TBG (4.35). The mean TBG was lower for the two- than six-row barleys (3.7 vs. 4.0), and a broader range for TBG in the two- (3.31–4.55) than six-row barleys (3.71–4.42) suggesed the greater possibility of producing low and high TBG barleys from the two-row cultivars. Canadian cultivars contained between 3.31 and 4.55 g TBG hg−1 DM, and there is a need to develop feed-type barleys containing a third less than the minimum TBG, and food-type barleys containing a third more than the maximum TBG. Key words: Barley, Hordeum vulgare cultivars, β-glucan

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