תוצאות חיפוש - S. B. Lepekhov
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Classification of environments based on correlations of yield in spring bread wheat
יצא לאור 2020-12-01קבל טקסט מלאBackground. Genotype–environment interaction complicates selection of lines in plant breeding. Researchers have developed different ways to classify environments to mitigate its effect. The use of correlation analysis between yields of cultivars grown in different environments was earlier proposed f...
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Efficiency of selection in early generations of crop hybrids for high yield and yield components (a review)
יצא לאור 2019-02-01קבל טקסט מלאDespite the success of molecular genetics, overwhelming majority of Russian breeders still rely on selection based on plant phenotype. The most common way of identifying traits for such selection is calculation of their correlation with yield. However, the world science has accumulated extensive exp...
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Canopy temperature depression for droughtand heat stress tolerance in wheat breeding
יצא לאור 2022-04-01קבל טקסט מלאAn infrared thermometer was first used to assess drought and heat tolerance in plant breeding more than 40 years ago. Soon afterward, this method became widely used throughout the world. However, Russia has not yet applied the described method for evaluating stress tolerance. This paper presents an...
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Dependence of the yield in late-generation lines on the spike productivity in original segregating populations of spring bread wheat
יצא לאור 2024-10-01קבל טקסט מלאBackground. An ascertained possibility of culling segregating populations on the basis on their yield or grain weight per spike as a character closely correlated with yield can increase the efficiency of breeding practice with spring bread wheat. Materials and methods. Sixteen F2 –F4 segregating pop...
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Traits with negative effects and their benefits for soft wheat (Triticum aestivum L.) breeding
יצא לאור 2016-08-01קבל טקסט מלאThe presence of traits with negative effects for yield in breeding samples has forced breeders to reject them in the field. As a result, the risk of loss of valuable genotypes has appeared. In this article, it has been proposed that traits as these can serve as indicators of high adaptiveness of a v...
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METHODS OF CHOOSING PARENTAL PAIRS FOR CROSSES IN THE BREEDING OF SELF-POLLINATING CROPS FOR YIELD
יצא לאור 2018-06-01קבל טקסט מלאProceedings on applied botany, genetics and breeding. Vol. 178. Iss. 4. SPb.: VIR, 2017. P. 80-93. Bibl. 82. The ecogeographical principle of choosing pairs for crossing developed by V. I. Michurin has appeared so effective that it is still used by many plant breeders. Meanwhile, as a result of exte...
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Stem solidness as an important factor for wheat protection from European wheat stem sawfly (<i>Cephus pygmaeus</i> L.) in Altai
יצא לאור 2022-04-01קבל טקסט מלאBackground. European wheat stem sawfly (Cephus pygmaeus L.) is the main pest of wheat in Altai Territory, Russia. Resistance of host plants to this insect is based on a solid stem. The effect of a solid stem on the infestation of wheat stem sawfly larvae and on agronomic traits of spring bread wheat...
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