Физиологические аспекты применения физических факторов, микроэлементов и регуляторов роста для повышения засухоустойчивости растений
| Jazyk: | ruština |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Вестник Ульяновской государственной сельскохозяйственной академии. |
| ISSN: | 1816-4501 |
| Popis: | Проведённые многолетние исследования показывают, что под действием физических и химических факторов происходит усиление адаптивных реакций к неблагоприятным факторам среды за счёт увеличения водоудерживающей способности листьев, кроме этого, происходит увеличение количества связанной воды. The results of long term experiments to study the effects of physical, chemical factors and growth regulators show the uniformity of plant responses to stress conditions. The content of bound water and waterholding power of different varieties carried out in the field, vegetation experiments, but also in terms of drought and phytotron from the action of physical factors, micro-elements the same effect is obtained the universality of the response of the plant organism, in this case spring wheat. Studies show that water-holding capacity is a dynamic indicator and varies depending on the stage of growth and plant age. Varietal differences are established according to water loss. Soil drought, even briefly, will have a significant effect on the ratio of forms of water, resulting the reduction of overall waterfulness of leaves and the amount of free water, the amount of bound water increases. Bound water forms the most stable supply of water in plants and is essential for improving drought tolerance. Under drought plants treated with copper and zinc, especially on the background radiation, have better water holding capacity. The heat resistance is greatly increased by the action of zinc. Seed treatment with pectin, melafen and micro-elements contributes to the adaptation of plants to the transfer of the adverse factors of environment, evidenced by the accumulation of proline as osmotically active organic substances that contribute to water retention in the cells of plants, the maximum content of proline is observed at the onset of the phase of earing. In general, growth regulators and microelements, especially zinc, have a positive impact on the drought and heat resistance of spring wheat. |
| Databáze: | OpenAIRE |
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