scholarly journals An overview of barley breeding and variety trials in Iceland in 1987-2014

2017 ◽  
Vol 30 ◽  
pp. 13-28 ◽  
Author(s):  
Hrannar Smári Hilmarsson ◽  
Magnus Göransson ◽  
Morten Lillemo ◽  
Þórdís Anna Kristjánsdóttir ◽  
Jónatan Hermannsson ◽  
...  
Keyword(s):  
Variety Trials ◽  
Barley Breeding

University of Florida Potato Variety Trials Spotlight: ‘LaChipper’

EDIS ◽  
2017 ◽  
Vol 2017 (4) ◽  
Author(s):  
Rodrick Z. Mwatuwa ◽  
Christian T. Christensen ◽  
Pam Solano ◽  
Lincoln Zotarelli
Keyword(s):  
Potato Variety ◽  
University Of Florida ◽  
Variety Trials

by Rodrick Z. Mwatuwa, Christian T. Christensen, Pam Solano, and Lincoln Zotarelli http://edis.ifas.ufl.edu/hs1297

Efficiency of Spatial Analyses of Field Pea Variety Trials

Crop Science ◽  
2004 ◽  
Vol 44 (1) ◽  
pp. 49 ◽  
Author(s):  
Rong-Cai Yang ◽  
Terrance Z. Ye ◽  
Stanford F. Blade ◽  
Manjula Bandara
Keyword(s):  
Field Pea ◽  
Spatial Analyses ◽  
Variety Trials

Block designs for variety trials

1978 ◽  
Vol 90 (2) ◽  
pp. 395-400 ◽  
Author(s):  
H. D. Patterson ◽  
E. R. Williams ◽  
E. A. Hunter
Keyword(s):  
Block Designs ◽  
Incomplete Block ◽  
Variety Trials ◽  
Rectangular Lattices

SummaryIn this paper we present a series of resolvable incomplete block designs suitable for variety trials with any number of varieties v in the range 20 ≤v ≤ 100. These designs usefully supplement existing square and rectangular lattices. They are not necessarily optimal in the sense of having smallest possible variances but their efficiencies are known to be high.

scholarly journals Evaluating Hybrid Bermudagrass Using Spectral Reflectance under Different Mowing Heights and Trinexapac-ethyl Applications

2017 ◽  
Vol 27 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Dana Sullivan ◽  
Jing Zhang ◽  
Alexander R. Kowalewski ◽  
Jason B. Peake ◽  
William F. Anderson ◽  
...  
Keyword(s):  
Spectral Reflectance ◽  
Management Practices ◽  
Cynodon Dactylon ◽  
Functional Performance ◽  
Lignin Content ◽  
Vegetation Indices ◽  
Variety Trials ◽  
Fiber Analysis ◽  
Green Cover ◽  
Aesthetic Performance

Quantitative spectral reflectance data have the potential to improve the evaluation of turfgrasses in variety trials when management practices are factors in the testing of turf aesthetics and functionality. However, the practical application of this methodology has not been well developed. The objectives of this research were 1) to establish a relationship between spectral reflectance and turfgrass quality (TQ) and percent green cover (PGC) using selected reference plots; 2) to compare aesthetic performance (TQ, PGC, and vegetation indices) and functional performance (surface firmness); and 3) to evaluate lignin content as an alternate means to predict surface firmness in turfgrass variety trials of hybrid bermudagrass [Cynodon dactylon × C. transvaalensis]. A field study was conducted on mature stands of three varieties (‘TifTuf’, ‘TifSport’, and ‘Tifway’) and two experimental lines (04-47 and 04-76) at two mowing heights (0.5 and 1.5 inch) and trinexapac-ethyl application (0.15 kg·ha−1 and nontreated control) treatments. Aesthetic performance was estimated by vegetation indices, spectral reflectance, visual TQ, and PGC. The functional performance of each variety/line was measured through surface firmness and fiber analysis. Regression analyses were similar when using only reference plots or all the plots to determine the relationship between individual aesthetic characteristics. Experimental line 04-47 had lower density in Apr. 2010, whereas varieties ‘TifTuf’, ‘TifSport’, and ‘Tifway’ were in the top statistical group for aesthetic performance when differences were found. ‘TifSport’ and ‘Tifway’ produced the firmest surfaces, followed by ‘TifTuf’, and finally 04-76 and 04-47, which provided the least firm surface. Results of leaf fiber analysis were not correlated with turf surface firmness. This study indicates that incorporating quantitative measures of spectral reflectance could reduce time and improve precision of data collection as long as reference plots with adequate range of green cover are present in the trials.

scholarly journals HOPS LIAISON COMMITTEE*: INTERNATIONAL HOP VARIETY TRIALS 1965-1967

1970 ◽  
Vol 76 (3) ◽  
pp. 223-234 ◽  
Author(s):  
J. F. Brown ◽  
F. C. Thompson ◽  
B. Trolle ◽  
F. Zattler ◽  
Birger Trolle
Keyword(s):  
Variety Trials ◽  
Liaison Committee

AC Burman barley

1992 ◽  
Vol 72 (2) ◽  
pp. 473-475
Author(s):  
K. M. Ho ◽  
T. M. Choo ◽  
R. A. Martin
Keyword(s):  
Hordeum Vulgare ◽  
Key Words ◽  
Test Weight ◽  
High Yield ◽  
Loose Smut ◽  
Hordeum Vulgare L ◽  
Eastern Canada ◽  
Good Test ◽  
Barley Breeding ◽  
Moderately Resistant

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

ADDITIONAL CRITERIA FOR SELECTION OF MALTING QUALITY IN BARLEY BREEDING

1976 ◽  
Vol 56 (4) ◽  
pp. 805-809 ◽  
Author(s):  
V. M. BENDELOW
Keyword(s):  
Specific Gravity ◽  
Filtration Rate ◽  
Sugar Content ◽  
Reducing Sugar ◽  
Malting Quality ◽  
Breeding Programs ◽  
Barley Breeding ◽  
Sample Extraction ◽  
Criteria For Selection ◽  
Selection Of

A procedure that provides information on the suitability of barley for malting and, brewing purposes is described. Three parameters are measured: mash filtration rate, wort viscosity and wort-reducing sugar content, as maltose. Maltose is determined by an auto-analyzer method and this is a satisfactory alternative to the specific gravity procedure for the estimation of percent extract. The addition of these criteria to those already in use enables more discriminatory selection at early generations of barley-breeding programs. The technique requires only one sample extraction and 18 g of laboratory malt.

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