Some aspects of the winter wheat breeding for winter hardiness in the conditions of changing climate

Грабовец, А. И.; Фоменко, М А

doi:10.3103/s1068367415010073

Cited by 8 publications

(4 citation statements)

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“…Предложены практические рекомендации по оптимизации питания растений и получения наибольшей продуктивности зерна озимой пшеницы. [1][2][3]. В условиях засухи в растениях определяются положительные связи между содержанием азота и хлорофилла [4][5][6][7][8].…”

Section: резюмеunclassified

Influence of weather and climatic conditions on the genetic and physiological system of winter wheat plants in arid conditions of the Central Caucasus, Russia

Есаулко

Pismennaya

Golosnoi

et al. 2022

Ûg Ross.: èkol. razvit.

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Section: резюмеunclassified

Influence of weather and climatic conditions on the genetic and physiological system of winter wheat plants in arid conditions of the Central Caucasus, Russia

Есаулко

Pismennaya

Golosnoi

et al. 2022

Ûg Ross.: èkol. razvit.

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Section: Introductionmentioning

confidence: 99%

“…Winter wheat frost damage is mainly caused by low temperatures and cold weather in winter, which causes partial or complete freezing of the wheat leaves and even plant death. Previous research has indicated that significantly low temperatures (−16°C to −27°C) affect the yield of 90% of wheat varieties (Grabovets & Fomenko, 2015). Heilongjiang Province is located in northeast China, where low temperatures, severe winters and freezes are the main factors that restrict winter wheat planting and yield reductions (Tian et al, 2021; Yu et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Overexpression of the TaEXPA19 gene improves low‐temperature tolerance in winter wheat (Triticum aestivum)

Li,

Hu,

Peng

et al. 2023

Plant Breeding

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Low temperature is one of the main abiotic stresses that affects plant growth, causing serious damage or even death to plants. The differential expression of the TaEXPA19 gene in the above and underground parts of winter wheat and the implications for cold resistance remain unclear. In this study, the TaEXPA19 gene was cloned and analysed for expression in winter wheat, and transgenic Arabidopsis thaliana was constructed to investigate the effect of the TaEXPA19 gene in response to low‐temperature stress on plant growth. The TaEXPA19‐A and TaEXPA19‐D genes have different response patterns in the above and underground parts of transgenic A. thaliana. When plants were subjected to low‐temperature stress, the leaves were quickly upregulated and the roots were downregulated, and then upregulated to respond to low‐temperature stress to promote the growth of leaf length and leaf width petiole length. The results indicated that TaEXPA19 genes could improve low‐temperature tolerance in plants. The results of this study laid a foundation for the study of the cold resistance of winter wheat.

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“…Имеются данные о достаточно редком проявлении трансгрессий при скрещивании родителя с максимальным значением признака с компонентом со средней его выраженностью [10, 11 др.]. В то же время показано, что при использовании обоих среднеморозостойких продуктивных сортов у гетерогенных популяций с продолжительным во времени формообразованием при давлении условий среды появляются плюстрансгрессии качественного и количественного характера, часто с выраженностью качественных признаков, близких к максимальным [12]. Однако существует мнение о случайности проявления трансгрессий и только по ряду признаков [2, 13 и др.…”

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Plyustransgression in winter wheat breeding on frost resistance and productivity

Грабовец

Фоменко

2019

Rossiiskaia selskokhoziaistvennaia nauka

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The results of breeding on the Don using transgressive variability during 1985 - 2018 are presented. The location is a chernozem steppe with frequent frosts, insufficient and unstable moistening over the years. The technology of breeding is common. Used pedigree and bulk method. New when laying a breeding nursery was sowing up to 45 thousand untreated ears of a designed planter (to eliminate weeding during threshing ears), determining the frost resistance of plants that have been hardened in the field, in bundles placed in plastic bags, in low temperatures, determining their viability for three days after freezing by the Don method. A large layer of studies ( more than 11,000 populations) was analyzed, starting with F1 and ending with the completion of formation for each. It is confirmed that transgression, the result of the recombination, is observed in populations whose parents do not have extreme severity of the trait. It is established that populations should be heterogeneous with long-term formation. This happens when parents have very few common genes, when there is no restriction on recombination due to too large differences in components. With the presence of overdominance in F1 in many studied populations, it is possible to predict the appearance of transgressions (in our case for frost-resistance and productivity) with an average frequency of 0.25-4.36%. With the incomplete and complete dominance of the trait of the best parent, the excess of parents in F2 on average over the population, intermediate inheritance in F2 traits are also possible, but an order of magnitude less than when overdominated. This should be accompanied by large volumes of study of the breeding material in the first stages and the pressure of stresses of various kinds. Of the 38 varieties that at various times included in the State Register of Russia, 29 were transgressive recombinants for winter hardiness and productivity. They all withstand minus 18⁰ С on the tillering knot

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Some aspects of the winter wheat breeding for winter hardiness in the conditions of changing climate

Cited by 8 publications

References 1 publication

Influence of weather and climatic conditions on the genetic and physiological system of winter wheat plants in arid conditions of the Central Caucasus, Russia

Influence of weather and climatic conditions on the genetic and physiological system of winter wheat plants in arid conditions of the Central Caucasus, Russia

Overexpression of the TaEXPA19 gene improves low‐temperature tolerance in winter wheat (Triticum aestivum)

Plyustransgression in winter wheat breeding on frost resistance and productivity

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