Effect of Glyphosate Application on Hagberg Falling Number of Wheat

2007 ◽  
Vol 84 (5) ◽  
pp. 492-496 ◽  
Author(s):  
M. Craven ◽  
A. Barnard ◽  
M. T. Labuschagne
2006 ◽  
Vol 144 (5) ◽  
pp. 411-419 ◽  
Author(s):  
P. D. HOLLINS ◽  
P. S. KETTLEWELL ◽  
S. T. PARSONS ◽  
M. D. ATKINSON

The difference between the bread wheat and feed wheat prices in the UK (the premium) is an important influence on behaviour throughout the entire grain chain. The aim of the present study was to quantify the influence of grain quality and other factors on interannual variation in the premium calculated as a proportion of the feed price. A hypothetical model of the UK wheat economy was devised, appropriate annual national data from 1982 to 2000 were collected for each component and multiple regression was used to develop a statistical model for the premium.The statistical model included livestock numbers (calculated as pig equivalents), Hagberg falling number and wheat stocks, which together explained 0·80 of the interannual variation in the premium. A high premium was associated with high livestock numbers, low Hagberg falling number and low wheat stocks. These variables were included in the hypothetical model because: livestock numbers represent demand for feed wheat; Hagberg falling number is a quality criterion for purchase of bread wheat with a low value indicating poor quality and thus a smaller supply of bread wheat; wheat stocks are one of the sources of supply of wheat. It was concluded that of the 16 supply, demand or price variables in the hypothetical model the main variables associated with the premium from 1982 to 2000 were demand for feed wheat, quality of the wheat harvest and carry-over of wheat from the previous harvest.


1997 ◽  
Vol 128 (2) ◽  
pp. 127-134 ◽  
Author(s):  
P. S. KETTLEWELL ◽  
M. M. CASHMAN

The hypothesis was tested that slow grain drying stimulates pre-maturity alpha-amylase activity in wheat (Triticum aestivum L.). Grain drying rate in 91 commercial crops of cultivars Avalon or Mercia grown over the years 1988–90 was estimated from the slope of linear regressions of moisture content on time. Incipient sprouting was detected in some samples from 1988 using the fluoroscein dibutyrate test, but results from a beta-limit dextrin gel assay indicated that pre-maturity alpha-amylase was probably the major source of alpha-amylase activity in these samples. Although year-to-year differences in ln alpha-amylase activity and Hagberg falling number tended to be associated with seasonal differences in drying rate, there was no evidence of a relationship between either ln alpha-amylase activity or Hagberg falling number and drying rate after the year effect was removed by an analysis of covariance. A second dataset from one crop in each of 14 years at one site showed significant positive linear relationships between cumulative potential evapotranspiration calculated over different periods during grain ripening and Hagberg falling number (excluding 3 years when incipient sprouting was thought to occur). It was concluded that pre-maturity alpha-amylase activity was stimulated by an unknown environmental factor differing between seasons and associated with seasonal differences in drying rate and cumulative potential evapotranspiration.


2000 ◽  
Vol 80 (3) ◽  
pp. 605-607 ◽  
Author(s):  
J. G. McLeod ◽  
Y. T. Gan ◽  
J. F. Payne

AC Remington, a cultivar of winter rye (Secale cereale L.), was developed at the Semiarid Prairie Agricultural Research Centre, Research Branch, Agriculture and Agri-Food Canada, Swift Current, Saskatchewan. AC Remington is a semidwarf with 20 to 25% shorter straw and improved lodging resistance compared with tall cultivars. AC Remington has good winter survival and is well adapted to the Canadian Prairies. AC Remington has improved grain yield, test weight, kernel weight and Hagberg Falling Number compared with those of the semidwarf cultivar AC Rifle. Plant height, heading, maturity and ergot infection of AC Remington are similar to those of AC Rifle. Key words: Cultivar description, semidwarf, rye (winter), Hagberg Falling Number, Secale cereale L.


Crop Science ◽  
2014 ◽  
Vol 54 (3) ◽  
pp. 1243-1252 ◽  
Author(s):  
Junli Zhang ◽  
Jianli Chen ◽  
Brian C. Bowman ◽  
Katherine O'Brien ◽  
Juliet M. Marshall ◽  
...  

1982 ◽  
Vol 62 (4) ◽  
pp. 839-844 ◽  
Author(s):  
J. E. KRUGER ◽  
K. H. TIPPLES

The Hagberg falling number method and a recently developed turbidometric method using the Perkin Elmer Model 191 Grain Amylase Analyzer were evaluated for measuring the levels of α-amylase activity in rye samples with varying sprout damage. Poor correlations were obtained between the a-amylase methods and percent visual sprout damage, although the two α-amylase methods correlated fairly well with each other. Differences between levels of α-amylase activity and levels of sprout damage may be explained by: (a) the difficulty in assessing sprout damage levels due to the presence of degermed or skinned kernels; (b) the association of higher levels of α-amylase activity with other types of damaged kernels; and (c) the severity of sprouting of individual rye kernels.


2007 ◽  
Vol 48 (1) ◽  
pp. 12-20 ◽  
Author(s):  
H. Hetland ◽  
A.K. Uhlen ◽  
K.H.K. Viken ◽  
T. Krekling ◽  
B. Svihus

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