Abstract
Background: Global climate change facilitates the spread of diseases of the winter bread wheat ( Triticum aestivum L.) and increases the yield losses caused by a combination of these diseases and drought. Prevention of the yield losses depends on the identification of the resistance genes and the introduction of these genes into commercial cultivars. Objective: The objective of the study was to evaluate resistance to widespread diseases, drought and other agricultural traits amongst the members of diversity panel consisting of introgression wheat lines derived from complex interspecies crosses. Materials and Methods: The field trials were conducted during 2018-2019 and 2019-2020 seasons. The winter wheat diversity panel consists of seventy-eight introgression lines and two check cultivars developed for the arid climate zone of southern Ukraine. The data on nine agronomic (quantitative scores) and five-pathogen response (point scores) traits were collected and subjected to both variance and correlation analysis to determine the contribution of the individual genetic backgrounds towards plant resiliency. Results: Most lines were found resistant to rust species. The distribution of responses in the analyzed lines was bimodal in response to rusts and unimodal in response to powdery mildew or septoria. The resistance traits showed no correlation with heading date, plant height, and protein content. The yield traits did not correlate with the resistance to diseases except for stem rust ( R sp = 0.34**) and Septoria blight ( R sp = −0.23*). A negative correlation was observed between quality traits and grain yield, but quality traits correlated positively with each other. Conclusion: High diseases resistance trait correlates with low yield, reduced protein content or small grain. The frequency of lines combining pathogen resistance as measured by total yield with grain quality is low. The introgression lines provide a source of genes for improving disease and drought resistance of winter wheat.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Most wheat lines resisted rust species.
Verbatim
e0“Most lines were found resistant to rust species.”
Claim · model-written summary
Rust responses of wheat lines had a bimodal distribution.
- Taxon
- linese0
- Interactor
- rustsPuccinialese0pathogen
- Outcome
- responses in the analyzed linese0
Verbatim
e0“The distribution of responses in the analyzed lines was bimodal in response to rusts”
Claim · model-written summary
Powdery mildew responses of wheat lines had a unimodal distribution.
Verbatim
e0“unimodal in response to powdery mildew or septoria”
e1“The distribution of responses in the analyzed lines was bimodal in response to rusts and unimodal in response to powdery mildew or septoria.”
Claim · model-written summary
Septoria responses of wheat lines had a unimodal distribution.
SeptoriaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“unimodal in response to powdery mildew or septoria”
e1“The distribution of responses in the analyzed lines was bimodal in response to rusts and unimodal in response to powdery mildew or septoria.”
Claim · model-written summary
Resistance traits were uncorrelated with heading date, plant height and protein content.
- Taxon
- Wheat
Triticum aestivumt0 - Organ / stage
- heading datee0
- Outcome
- heading date, plant height, and protein contente0
- Direction
- no correlatione0
- Qualifier
- resistance traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The resistance traits showed no correlation with heading date, plant height, and protein content.”
t0“Winter Wheat Commercial Varieties”
Claim · model-written summary
Yield traits were correlated with stem rust resistance.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- stem ruste0pathogen
- Outcome
- yield traitse1
- Value
- R sp = 0.34**e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except for stem rust ( R sp = 0.34**) and Septoria blight ( R sp = −0.23*)”
t0“Wheat Commercial Varieties”
e1“The yield traits did not correlate with the resistance to diseases except for stem rust ( R sp = 0.34**) and Septoria blight ( R sp = −0.23*).”
Claim · model-written summary
Yield traits were negatively correlated with Septoria blight resistance.
- Taxon
- WheatTriticum aestivumt0
- Interactor
- Septoria blighte0pathogen
- Outcome
- yield traitse0
- Value
- R sp = −0.23*e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield traits did not correlate with the resistance to diseases except for stem rust ( R sp = 0.34**) and Septoria blight ( R sp = −0.23*).”
t0“Wheat Commercial Varieties”
Claim · model-written summary
Quality traits correlated negatively with grain yield.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- quality traitse0
- Direction
- negative correlatione0
- Comparator
- grain yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A negative correlation was observed between quality traits and grain yield”
t0“Wheat Commercial Varieties”
Claim · model-written summary
Quality traits correlated positively with one another.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- quality traitse0
- Direction
- positivelye0
- Comparator
- each othere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality traits correlated positively with each other”
t0“Wheat Commercial Varieties”
Claim · model-written summary
High disease resistance was associated with low yield, reduced protein content or small grain.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- low yield, reduced protein content or small graine0
- Direction
- lowe0
- Comparator
- High diseases resistance traite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High diseases resistance trait correlates with low yield, reduced protein content or small grain.”
t0“Wheat Commercial Varieties”
Claim · model-written summary
Few lines combined pathogen resistance with yield and grain quality.
Verbatim
e0“The frequency of lines combining pathogen resistance as measured by total yield with grain quality is low.”
Claim · model-written summary
The introgression lines provide genes for improving wheat disease and drought resistance.
- Taxon
- winter wheatTriticum aestivume0
- Material
- introgression linese0
- Outcome
- source of genes for improving disease and drought resistancee0
- Value
- genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The introgression lines provide a source of genes for improving disease and drought resistance of winter wheat.”