Location of α-amylase/subtilisin inhibitor during kernel development and germination

1995 ◽  
Vol 73 (7) ◽  
pp. 982-990 ◽  
Author(s):  
R. D. Hill ◽  
S. M. Gubbels ◽  
L. Boros ◽  
M. J. Sumner ◽  
A. W. MacGregor

The location of an endogenous α-amylase/subtilisin inhibitor in developing and germinating barley (Hordeum vulgare, cv. Bonanza) was determined using immunohistochemical techniques. The inhibitor was found within protein bodies of cells containing starch granules in the starchy endosperm and embryo of developing caryopses. It could be detected as early as 2 weeks postanthesis in both organs. Upon germination, inhibitor was released from protein bodies, resulting in increased detection of the protein in regions of the starchy endosperm in which storage mobilization was occurring. Antibodies to α-amylase revealed large quantities of this protein in the same regions. Key words: α-amylase, α-amylase/subtilisin inhibitor, barley, germination, kernel development, starch.

1992 ◽  
Vol 72 (2) ◽  
pp. 473-475
Author(s):  
K. M. Ho ◽  
T. M. Choo ◽  
R. A. Martin

AC Burman is a six-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture Canada and is adapted to Eastern Canada. It was selected from a Leger/Bruce/2/2*Leger cross. AC Burman has high yield, good test weight and is moderately resistant to loose smut (Ustilago nuda (Jens.) Rostr.).Key words: Hordeum vulgare L., six-rowed barley, feed barley, high yield


1998 ◽  
Vol 78 (2) ◽  
pp. 217-222 ◽  
Author(s):  
M. J. Edney ◽  
T. M. Choo ◽  
D. Kong ◽  
T. Ferguson ◽  
K. M. Ho ◽  
...  

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


2012 ◽  
Vol 7 (49) ◽  
pp. 6533-6540 ◽  
Author(s):  
Chen Yifang ◽  
Zhang Jun ◽  
Xie Peisong ◽  
Zhou Weidong ◽  
Chen Jianmin ◽  
...  

1997 ◽  
Vol 77 (4) ◽  
pp. 635-637 ◽  
Author(s):  
T. M. Choo ◽  
R. A. Martin ◽  
K. M. Ho ◽  
G. Atlin ◽  
R. Walton ◽  
...  

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


1991 ◽  
Vol 71 (1) ◽  
pp. 187-188
Author(s):  
K. M. Ho

Morrison is a two-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Plant Research Centre, Agriculture Canada, Ottawa. It was selected from a Rodeo/Gitane cross. Morrison has high yield, high test weight, large kernels, good lodging resistance and a high degree of resistance to powdery mildew (Erysiphe graminis D.C.). It is suitable for growing in Eastern Canada. Key words: Hordeum vulgare L., two-rowed barley, feed barley, high yield


1987 ◽  
Vol 67 (2) ◽  
pp. 309-316 ◽  
Author(s):  
T. G. SOMMERFELDT ◽  
D. C. MACKAY

A 7-yr study was conducted to determine the effects of repeated annual applications of manure containing softwood shavings (M + S) at 50 t ha−1 on the soil and its productivity, relative to manure without shavings (M) at 50 t ha−1 and nitrogen fertilizer (F) at 67 kg ha−1. The EC, OM, total N and C:N ratio of the soil of the M + S and M + S + F plots to 60-cm depth were not significantly greater than those from the M plots, and in some instances they were significantly less. The NO3-N and total N and available P contents of the soil from the M + S treatment were significantly lower than those from the M treatment. Immobilization of N in the M + S and M + S + F treatments was indicated. Barley (Hordeum vulgare L. 'Gait') straw and grain yields and protein content of the grain were generally greater under the M than under the M + S treatment. When N fertilizer was included in the M + S treatment (M + S + F) the yields were similar to those of M, and the protein content increased. If manure with shavings is used for fertilizer, supplemental N should be applied to offset N immobilization. Key words: Manure disposal, manure, manure with wood shavings, nitrogen, crop yields


1993 ◽  
Vol 73 (4) ◽  
pp. 1079-1081
Author(s):  
K. M. Ho ◽  
W. L. Seaman ◽  
T. M. Choo ◽  
R. A. Martin

AC Stephen is a six-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture Canada, and is adapted to Eastern Canada. It was selected from an OAC Kippen/Léger cross. AC Stephen has high yield, good test weight and is resistant to powdery mildew (Erysiphe graminis DC. ex Merat. f. sp. hordei Em. Marchal). Key words: Hordeum vulgare L., six-rowed barley, feed barley, high yield, powdery mildew


1990 ◽  
Vol 68 (9) ◽  
pp. 1889-1893 ◽  
Author(s):  
Bernard R. Baum ◽  
Pushpendra K. Gupta

A detailed study of inflorescence, glume, lemma, and lodicule characters was conducted in 108 accessions of triticales (2n = 6x = 42; 2n = 8x = 56), in 102 herbarium specimens representing 21 species of Triticum and Aegilops, and in 30 herbarium specimens representing 12 species of Secale. The differences observed justify in our opinion generic status for triticales. A key has been provided for distinguishing the genera Secale, Triticum, and Aegilops and the nothogenus ×Triticosecale. In addition to morphological differences, cytological differences and other differences in starch granules and glutenin morphology, known from other studies, provide further support for the generic status of triticale. Key words: Triticale, Secale, Triticum, wheat, rye, taxonomy.


Sign in / Sign up

Export Citation Format

Share Document