Abstract
The aim of study was the evaluation of silicon (Si) foliar and soil application effect on mitigation of drought stress in spring wheat. Twoyears study was performed in greenhouse with the use of vases with a capacity of 10 kg of soil. Silicon was used as a foliar application at the concentration of 6 mM Si/l and as soil application before plant sowing at doses 200 and 400 mg Si/kg, in the form of Na2SiO3. At the growth stage of tillering, drought stress was introduced and soil moisture was kept at 30% PPW. Silicon application positively affected yield and biochemical parameters of plants growing under water stress. Soil application was more efficient than foliar one in reducing of yield decrease and negative impact of water deficit on plants. Silicon uptake from soil by wheat was greater than from foliar application.
Highlights
Streszczenie Celem badań była ocena działania dolistnej i doglebowej aplikacji krzemu (Si) na złagodzenie stresu suszy w pszenicy jarej
The aim of study was the evaluation of silicon (Si) foliar and soil application effect on mitigation of drought stress in spring wheat
Silicon was used as a foliar application at the concentration of 6 mM Si/l and as soil application before plant sowing at doses 200 and 400 mg Si/kg, in the form of Na2SiO3
Summary
Streszczenie Celem badań była ocena działania dolistnej i doglebowej aplikacji krzemu (Si) na złagodzenie stresu suszy w pszenicy jarej. Doświadczenia polowe przeprowadzone w warunkach gleb naszego kraju wskazują na korzystny wpływ dolistnej i doglebowej aplikacji krzemu na plonowanie pszenicy jarej w warunkach umiarkowanej wilgotności gleby, jak i w stresie wodnym Zastosowana w doświadczeniach dolistna, jak i doglebowa suplementacja krzemianem sodu w warunkach optymalnej wilgotności dla roślin nie różnicowała istotnie wielkości plonów ziarna pszenicy
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