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Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis

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dc.contributor.author Iryna, Poprotska
dc.contributor.author Volodymyr, Kuryata
dc.contributor.author Оlena, Khodanitska
dc.contributor.author Stepan, Polyvanyi
dc.date.accessioned 2023-01-24T09:42:08Z
dc.date.available 2023-01-24T09:42:08Z
dc.date.issued 2019
dc.identifier.uri https://r.donnu.edu.ua/handle/123456789/2568
dc.description Стаття у науковому виданні BIOLOGIJA. 2019. Vol. 65. No. 4. P. 296–307 © Lietuvos mokslų akademija, 2019 en_US
dc.description.abstract The influence of preparations of phytohormone gibberellin and antigibberellin–retardants tebuconazole and chlormequat chloride – on the germination of plant seeds with different types of reserve compounds in the light (photomorphogenesis) and in the dark (skotomorphogenesis) was studied. It was established that under the action of gibberellin, stimulation of the above-ground part and root system growth of maize, beans and pumpkin seedlings was more intensive in comparison with the control. This process was faster in the dark. The use of tebuconazole and chlormequat chloride significantly inhibited the process of germination both in the light and in the dark. At the same time, the coefficient of the use of reserve substances was maximal under the action of gibberellin, and minimum under the action of retardants, both under the conditions of skoto- and photomorphogenesis. The change in the growth characteristics and the coefficient of the use of reserve substances of bean seeds was accompanied by a decrease in the content of total nitrogen, indicating the use of reserve nitrogen-containing compounds in the processes of morphogenesis. The content of protein nitrogen in the control was lower under the conditions of skotomorphogenesis than in the photomorphic seedlings, and the opposite effect was noted for the actions of gibberellin and the retardant. In the later stages of germination, the largest reserve oil of pumpkin seed remained in cotyledonary leaves of photomorphic plants under the effects of chlormequat chloride, which clearly correlated with the least intense growth rates of seedlings in this variant, both in the light and darkness. Under conditions of skotomorphogenesis the growth stimulating effect of gibberellin significantly increased, and the light blocked the action of this phytohormone. en_US
dc.language.iso en en_US
dc.publisher Vilnius: Lietuvos mokslų akademija en_US
dc.relation.ispartofseries BIOLOGIJA;2019. Vol. 65. No. 4. P. 296–307
dc.subject effect of light en_US
dc.subject morphogenesis en_US
dc.subject source-sink system en_US
dc.subject seed germination en_US
dc.subject gibberellins en_US
dc.subject retardants en_US
dc.title Effect of gibberellin and retardants on the germination of seeds with different types of reserve substances under the conditions of skoto- and photomorphogenesis en_US
dc.type Article en_US


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