Association Analysis of Stem Solidness and Wheat Stem Sawfly Resistance in a Panel of North American Spring Wheat Germplasm

Crop Science ◽  
2015 ◽  
Vol 55 (5) ◽  
pp. 2046-2055 ◽  
Author(s):  
A. C. Varella ◽  
D. K. Weaver ◽  
J. D. Sherman ◽  
N. K. Blake ◽  
H. Y. Heo ◽  
...  
Keyword(s):  
Association Analysis ◽  
Spring Wheat ◽  
North American ◽  
Wheat Stem Sawfly ◽  
Wheat Germplasm ◽  
Stem Solidness

scholarly journals Estimation of Stem-Solidness and Yield Components in Selected Spring Wheat Genotypes

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1640
Author(s):  
Mateusz Pluta ◽  
Danuta Kurasiak-Popowska ◽  
Jerzy Nawracała ◽  
Jan Bocianowski ◽  
Sylwia Mikołajczyk
Keyword(s):  
Spring Wheat ◽  
Agricultural Research ◽  
Research Station ◽  
Wheat Cultivars ◽  
Genotype I ◽  
Wheat Stem Sawfly ◽  
Wheat Genotypes ◽  
Whole Plant ◽  
Stem Solidness ◽  
New Varieties

Solid-stemmed wheat genotypes are better protected from damage caused by wheat stem sawfly (Cephus pygmaeus L.) larvae and at lower risk of lodging, as they are additionally strengthened. The aim of the study was to analyse the stem-solidness of fifty spring wheat cultivars with pith. A field experiment was conducted at the Agricultural Research Station Dłoń, Poland in the years 2012–2014. The method recommended by the International Union for the Protection of New Varieties of Plants (UPOV) and the methodology described by DePauw and Read were used to analyse the stem-solidness. The statistical analysis of the results showed that the stems of the wheat cultivars differed in their, therefore, they were divided into seven classes. There were nine Polish cultivars, two genotypes from Canada (BW 597 and AC Elsa) and one Portuguese genotype (I 836) with hollow stems. There were only nine solid-stemmed cultivars. Both methodologies were used to assess the filling of the stem in the whole plant upon analysis of its filling at the cross-section of the first internode. Both methods gave the same results. The DePauw and Read methodology showed that the internodes in the lower part of the plants were filled to the greatest extent. The same genotypes collected in the consecutive years of the study differed in the filling of their stems with pith. These differences were influenced by the environmental conditions.

LANCER HARD RED SPRING WHEAT

1986 ◽  
Vol 66 (2) ◽  
pp. 409-412 ◽  
Author(s):  
R. M. DE PAUW ◽  
T. F. TOWNLEY-SMITH ◽  
J. M. CLARKE ◽  
T. N. McCAIG ◽  
D. S. McBEAN
Keyword(s):  
Spring Wheat ◽  
Bipolaris Sorokiniana ◽  
Triticum Aestivum L ◽  
Research Station ◽  
Seed Shattering ◽  
Wheat Stem Sawfly ◽  
Hard Red Spring Wheat ◽  
Stem Solidness ◽  
Breeder Seed ◽  
High Level

Lancer hard red spring wheat (Triticum aestivum L.) combines a high level of stem solidness which confers resistance to wheat stem sawfly (Cephus cinctus Nort.) with improved resistance to common root rot (Bipolaris sorokiniana (Sacc. in Sorok.) Shoem.) and seed shattering. It is adapted to the Brown and Dark Brown soil zones of Alberta and Saskatchewan and should be a suitable replacement for Canuck. It was licensed on 15 May 1985. Breeder seed of Lancer will be maintained by Agriculture Canada Research Station, Regina, Saskatchewan.Key words: Wheat (spring), cultivar decription

INHERITANCE OF THATCHER-TYPE RESISTANCE TO COMMON ROOT ROT IN SPRING WHEAT

1968 ◽  
Vol 48 (5) ◽  
pp. 479-486 ◽  
Author(s):  
Hugh McKenzie ◽  
T. G. Atkinson
Keyword(s):  
Triticum Aestivum ◽  
Spring Wheat ◽  
Root Rot ◽  
Recessive Gene ◽  
Cochliobolus Sativus ◽  
Common Root ◽  
Wheat Stem Sawfly ◽  
Common Root Rot ◽  
Resistant Varieties ◽  
Stem Solidness

Inheritance of reaction to common root rot, caused chiefly by Cochliobolus sativus, was studied in F3 populations of wheat, Triticum aestivum, from crosses between the root-rot-resistant, hollow-stemmed varieties, Thatcher and Pembina, and the moderately root-rot-susceptible, solid-stemmed variety, CT 733. The results indicated that the resistance of Thatcher and Pembina, which appear to have the same gene complement, is controlled by a major recessive gene and one or two minor genes.No association was found between inheritance of root-rot reaction and the inheritance of stem solidness which determines resistance to the wheat stem sawfly (Cephus cinctus). Therefore, there should be no difficulty in incorporating root-rot resistance into sawfly-resistant varieties.

Variation for stem solidness and its association with agronomic traits in spring wheat

1995 ◽  
Vol 75 (4) ◽  
pp. 775-780 ◽  
Author(s):  
M. A. Hayat ◽  
J. M. Martin ◽  
S. P. Lanning ◽  
C. F. McGuire ◽  
L. E. Talbert
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Spring Wheat ◽  
Agronomic Traits ◽  
Insect Pest ◽  
Northern Great Plains ◽  
Cross Combination ◽  
Canadian Prairie ◽  
Wheat Stem Sawfly ◽  
Stem Solidness

The wheat stem sawfly (Cephus cinctus Norton) is a major insect pest of spring wheat (Triticum aestivum L.) in the Northern Great Plains of the US and Canadian Prairie provinces. The development of solid-stemmed wheat cultivars has been the main strategy to minimize losses from this insect. Solid-stemmed cultivars generally yield less than hollow-stemmed cultivars of the same era, and there are reports that degree of stem solidness is inversely related to grain yield. Our purpose was to examine the association between stem solidness and other agronomic traits and measure changes in progeny performance from three solid-stemmed parents representing different eras of cultivar development. Random, F4-derived F6 lines were obtained from crosses between solid-stemmed Rescue, Fortuna, and Lew and hollow-stemmed Newana and Thatcher. The random lines plus parents were evaluated in three environments. Changes during time from Rescue to Lew were in the desired direction for days to heading, plant height, and test weight, while stem-solidness score decreased for the parents themselves and in cross combination. Grain yield showed significant gains in two of three environments. A significant solid-stemmed × hollow-stemmed parent interaction was observed for stem solidness score suggesting epistatic gene action in the inheritance of this trait. The only significant associations of stem solidness score with agronomic traits were with plant height in one cross and grain protein concentration in two crosses. Results show the development of high yielding, solid-stemmed cultivars is not limited by undesirable associations between degree of stem solidness and other agronomic traits. Key words: Wheat stem sawfly, solid-stemmed wheat, trait associations

INHERITANCE OF SAWFLY REACTION AND STEM SOLIDNESS IN SPRING WHEAT CROSSES: SAWFLY REACTION

1965 ◽  
Vol 45 (6) ◽  
pp. 583-589 ◽  
Author(s):  
Hugh McKenzie
Keyword(s):  
Triticum Aestivum ◽  
Spring Wheat ◽  
Heading Date ◽  
Triticum Aestivum L ◽  
The Other ◽  
Major Influence ◽  
Tilletia Caries ◽  
Wheat Stem Sawfly ◽  
Cephus Cinctus ◽  
Stem Solidness

Inheritance of reaction to the wheat stem sawfly, Cephus cinctus Nort., was studied in populations of F3 and B2 lines from the cross Red Bobs × C.T. 715 (Triticum aestivum L.), and the respective backcrosses. The data supported the hypothesis that the varieties differed by three genes for sawfly reaction. A major influence was attributable to one gene. Its allele for susceptibility when homozygous was epistatic to the other two genes. Its allele for resistance was twice as effective as either of the other genes in conditioning resistance. The other two genes lacked dominance and were equal in their influence on sawfly reaction.Correlation coefficients showed that sawfly reaction was not associated with reaction to race T-2 of Tilletia caries (DC.) Tul., heading date, or awnedness. Sawfly susceptibility was weakly correlated with height.

AC Eatonia hard red spring wheat

1994 ◽  
Vol 74 (4) ◽  
pp. 821-823 ◽  
Author(s):  
R. M. DePauw ◽  
J. G. McLeod ◽  
J. M. Clarke ◽  
T. N. McCaig ◽  
M. R. Fernandez ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Triticum Aestivum L ◽  
Yield Potential ◽  
Seed Shattering ◽  
Wheat Stem Sawfly ◽  
Hard Red Spring Wheat ◽  
Common Root Rot ◽  
Stem Solidness ◽  
Cultivar Description ◽  
Solid Stem

AC Eatonia hard red spring wheat (Triticum aestivum L.) has several improved traits relative to Leader: increased stem solidness and resistance to cutting by the wheat stem sawfly, resistance to common bunt, common root rot and seed shattering, and higher grain yield potential. It is adapted to the Brown and Dark Brown soil zones. Key words:Triticum aestivum L., cultivar description, solid stem, disease resistance

Contribution of CIMMYT Wheat Germplasm to Genetic Improvement of Grain Yield in Spring Wheat of Sichuan, Yunnan, Gansu, and Xinjiang Pro-vinces

2011 ◽  
Vol 37 (10) ◽  
pp. 1752-1762 ◽  
Author(s):  
Yong ZHANG ◽  
Shi-Zhao LI ◽  
Zhen-Lu WU ◽  
Wen-Xiong YANG ◽  
Ya-Xiong YU ◽  
...  
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Genetic Improvement ◽  
Wheat Germplasm

Registration of Russian Wheat Aphid Resistant Hard Red Spring Wheat Germplasm

Crop Science ◽  
1993 ◽  
Vol 33 (6) ◽  
pp. 1420-1420 ◽  
Author(s):  
S. P. Lanning ◽  
L. E. Talbert ◽  
G. D. Johnson
Keyword(s):  
Spring Wheat ◽  
Russian Wheat Aphid ◽  
Hard Red Spring Wheat ◽  
Wheat Germplasm

scholarly journals The genetics of late maturity alpha-amylase (LMA) in North American spring wheat (Triticum aestivum L.)

2021 ◽  
pp. 1-10
Author(s):  
Chang Liu ◽  
Rehana S. Parveen ◽  
Samuel R. Revolinski ◽  
Kimberly A. Garland Campbell ◽  
Michael O. Pumphrey ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Spring Wheat ◽  
North American ◽  
Genome Wide Association Study ◽  
Triticum Aestivum L ◽  
Preharvest Sprouting ◽  
Alpha Amylase ◽  
Reduced Height ◽  
Increased Risk ◽  
Late Maturity

Abstract Genetic susceptibility to late maturity alpha-amylase (LMA) in wheat (Triticum aestivum L.) results in increased alpha-amylase activity in mature grain when cool conditions occur during late grain maturation. Farmers are forced to sell wheat grain with elevated alpha-amylase at a discount because it has an increased risk of poor end-product quality. This problem can result from either LMA or preharvest sprouting, grain germination on the mother plant when rain occurs before harvest. Whereas preharvest sprouting is a well-understood problem, little is known about the risk LMA poses to North American wheat crops. To examine this, LMA susceptibility was characterized in a panel of 251 North American hard spring wheat lines, representing ten geographical areas. It appears that there is substantial LMA susceptibility in North American wheat since only 27% of the lines showed reproducible LMA resistance following cold-induction experiments. A preliminary genome-wide association study detected six significant marker-trait associations. LMA in North American wheat may result from genetic mechanisms similar to those previously observed in Australian and International Maize and Wheat Improvement Center (CIMMYT) germplasm since two of the detected QTLs, QLMA.wsu.7B and QLMA.wsu.6B, co-localized with previously reported loci. The Reduced height (Rht) loci also influenced LMA. Elevated alpha-amylase levels were significantly associated with the presence of both wild-type and tall height, rht-B1a and rht-D1a, loci in both cold-treated and untreated samples.

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