Процеси водообміну в люпину білого та люпину жовтого за впливу регуляторів росту рослин

Abstract

Досліджено вплив передпосівної обробки насіння регуляторами росту рослин Емістим С та Агростимулін на інтенсивність транспірації, водний дефіцит, водоутримуючу здатність, вміст вільної і зв’язаної води в листках люпину білого та люпину жовтого. Показано, що за дії Емістиму С зростає інтенсивність транспірації листків люпину жовтого, Агростимуліну – водоутримуюча здатність рослинних тканин люпинів у фазі цвітіння.

Исследовано влияние предпосевной обработки семян регуляторами роста растений Эмистим С и Агростимулин на интенсивность транспирации, водный дефицит, водоудерживающую способность, содержание свободной и связанной воды в листьях люпина белого и люпина желтого. Показано, что за действия Агростимулина увеличивается водоудерживающая способность растительных тканей в фазе цветения.

The paper reports on research into the effects of plant growth stimulants Emistym S and Agrostymulin on the rate of transpiration, water deficit, water holding capacity, free and bound water content in the leaves of white and yellow lupine plants. The study showed that exogenous seed treatment with the above mentioned bioproducts caused a significant increase in the intensity of transpiration. In particular, after the application of Agrostymulin at the tillering stage of yellow lupine the rate of transpiration increased by 17.6%, Emistym - 46.9% and at the flowering stage - 3.2% and 22.9% respectively. as compared to control. White lupine values showed the same correlation. The application of Emistym at the tillering stage resulted in leaf transpiration increase by 16.1% and the flowering stage - by 8.6% in comparison to control. Furthermore, under the influence of Agrostymulin the rate of evapotranspiration of water from the leaf surface increased by 4.3% at both stages. The research demonstrated that the water holding capacity of lupine leaves could be regulated with Agrostymulin and Emistym S. The lowest value of water loss was observed in 24 hours and at the tillering stage it was 29.3% for yellow lupine and 43.2% for white lupine after the seed treatment with PPP Emistym S. At the flowering stage the water loss value was the lowest after the application of Agrostymulin: 50.7% for yellow lupine and 56.6% for white lupine plants. The study revealed that the application of Agrostymulin at the flowering stage reduced the water deficit of white lupine by 8.2% and yellow lupine by 7.2%. At the flowering stage, water deficit values increased as compared to the tillering stage, however, for white lupine only (by 1.1%-2.8%), for yellow lupine no significant difference shown. The free water content was higher in white lupine leaves, while the bound water content was lower as compared to yellow lupine values. Mass fraction of free water in the leaves of lupine white was higher after the application of Agrostymulin, and the yellow lupine - after the use of Emistym S.