scholarly journals Optimizing the setup of multienvironmental hybrid wheat yield trials for boosting the selection capability

2021 ◽  
Author(s):  
Moritz Lell ◽  
Jochen Reif ◽  
Yusheng Zhao
Keyword(s):  
Wheat Yield ◽  
Hybrid Wheat ◽  
Yield Trials

scholarly journals Multienvironment and Multitrait Genomic Selection Models in Unbalanced Early-Generation Wheat Yield Trials

Crop Science ◽  
2019 ◽  
Vol 59 (2) ◽  
pp. 491-507 ◽  
Author(s):  
Brian P. Ward ◽  
Gina Brown-Guedira ◽  
Priyanka Tyagi ◽  
Frederic L. Kolb ◽  
David A. Van Sanford ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Wheat Yield ◽  
Early Generation ◽  
Selection Models ◽  
Yield Trials

scholarly journals HETEROSIS IN F1 HYBRIDS BETWEEN SPRING AND WINTER WHEATS

1970 ◽  
Vol 50 (2) ◽  
pp. 137-140 ◽  
Author(s):  
M. N. GRANT ◽  
HUGH McKENZIE
Keyword(s):  
Winter Wheat ◽  
Spring Wheat ◽  
F1 Hybrids ◽  
Hybrid Wheat ◽  
Wheat Cultivars ◽  
Breeding Programs ◽  
Published Report ◽  
Winter Wheat Cultivars ◽  
Yield Trials ◽  
Wheat Parent

Significant levels of heterosis were demonstrated in F1 yield trials from crosses between three spring and three winter wheats (T. aestivum L.): Thatcher × Winalta, Cypress × Kharkov 22 MC, and Lee × Cheyenne. Yields up to 40% higher than those of the spring wheat parent were attributed to heterosis resulting from hybridization of genetically diverse spring and winter types. To our knowledge this is the first published report of heterosis for yield in F1 hybrids between spring and winter wheat cultivars. This information has significance in both hybrid wheat and conventional breeding programs.

Levels of heterosis for yield and quality in an F1 hybrid wheat

1985 ◽  
Vol 36 (4) ◽  
pp. 545 ◽  
Author(s):  
OW Boland ◽  
JJ Walcott
Keyword(s):  
Side Effects ◽  
Hybrid Wheat ◽  
Seeding Rate ◽  
Yield Performance ◽  
F1 Hybrid ◽  
Flour Protein ◽  
Yield And Quality ◽  
Expected Values ◽  
Milling Yield ◽  
Yield Trials

A newly released F1 hybrid wheat (Hybrid Titan) was compared with its parents and three commercial check cultivars in yield trials over 16 site years. Mid-parent heterosis varied considerably (100-127%) over the sites and averaged 111%. However, high-parent and high-check cultivar heterosis levels were much lower (99-119%), most likely a consequence of the low yield of the male parent. A concurrent seeding rate trial showed that lower levels of heterosis resulted if the seeding rate of the hybrid was reduced below that of the parent and check cultivars. Quality tests performed on the harvested grain showed some characters deviating considerably from expected values. The most significant of these were lower milling yield, flour protein content, and water absorption. The T. timopheevi nucleo-cytoplasmic system for producing hybrid wheat was implicated as having likely side effects on yield performance and quality. The study emphasized the need for both parents to be high-yielding and to have good combining ability for both yield and quality.

scholarly journals Genetic Gains for Grain Yield in CIMMYT's Semi‐Arid Wheat Yield Trials Grown in Suboptimal Environments

Crop Science ◽  
2018 ◽  
Vol 58 (5) ◽  
pp. 1890-1898 ◽  
Author(s):  
L. A. Crespo-Herrera ◽  
J. Crossa ◽  
J. Huerta-Espino ◽  
M. Vargas ◽  
S. Mondal ◽  
...  
Keyword(s):  
Grain Yield ◽  
Wheat Yield ◽  
Genetic Gains ◽  
Yield Trials ◽  
Semi Arid

Hybrid wheat yield and quality related to cultivation intensity and weather condition

2019 ◽  
Author(s):  
Jan Buczek ◽  
Wacław Jarecki ◽  
Dorota Bobrecka-Jamro ◽  
Jan Buczek ◽  
Marta Jańczak-Pieniążek
Keyword(s):  
Wheat Yield ◽  
Weather Condition ◽  
Hybrid Wheat ◽  
Yield And Quality

Removing Spatial Variation from Wheat Yield Trials: A Comparison of Methods

Crop Science ◽  
1994 ◽  
Vol 34 (1) ◽  
pp. 62-66 ◽  
Author(s):  
Walter W. Stroup ◽  
P. Stephen Baenziger ◽  
Dieter K. Mulitze
Keyword(s):  
Spatial Variation ◽  
Wheat Yield ◽  
Comparison Of Methods ◽  
Yield Trials

USE OF MOVING MEANS IN WHEAT YIELD TRIALS

1973 ◽  
Vol 53 (3) ◽  
pp. 447-450 ◽  
Author(s):  
T. F. TOWNLEY-SMITH ◽  
E. A. HURD
Keyword(s):  
Experimental Error ◽  
Wheat Yield ◽  
Error Variance ◽  
Analysis Of Covariance ◽  
Test Plant ◽  
Lower Error ◽  
Yield Trials

The efficiency of adjustments employing repeated controls was compared with the efficiency of moving mean adjustments in yield of wheat. Results reported show the moving mean of adjacent hybrid plots to give superior control of the experimental error. The best number of adjacent controls was tested and found to vary widely from test to test. Plant breeders may have to run several analyses to obtain the most accurate adjustment. An analysis of covariance was made on some trials to see if this technique would avoid overadjustment and give lower error variance. With few exceptions neither the use of covariance nor control plots gave as great a reduction in error variance as the optimum adjustment obtained by using the moving mean of adjacent plots.

scholarly journals Selection signatures in the CIMMYT International Elite Spring and Semi‐arid Wheat Yield Trials

2021 ◽  
Author(s):  
Alexandre Mondaini ◽  
Umesh Rosyara ◽  
Deepmala Sehgal ◽  
Susanne Dreisigacker
Keyword(s):  
Wheat Yield ◽  
Selection Signatures ◽  
Yield Trials ◽  
Semi Arid
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