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- 저자 : Yahya Zakaria Hassanein (검색결과 1 건)
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Yahya Zakaria Hassanein,S. S. A. Abdel-Rahman,Wagdi Saber Soliman,Sabri Salaheldin 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.6
Nanoparticles are one of the most widely studied materials in this century, and they have important uses in various fi elds,including agriculture. Bio-stimulants play a vital role in the sustainable development of horticultural crops. The aim of thisstudy was to assess the eff ect of nano zinc and bio-stimulants (salicylic acid, moringa extract, seaweed extract) on growth,yield, and quality of roselle plants. The experiment was conducted during 2018 and 2019 and was a completely randomizedsplit-plot design. Nano zinc oxide of 0, 5, 10, and 15 ppm was used as the main plot, and bio-stimulants were used as the subplot. The results showed that application of nano zinc led to signifi cant increases in growth, yield, photosynthetic pigments,as well as anthocyanin content associated with increased zinc content in leaves. The highest values of all traits occurredunder treatment of 10 ppm of nano zinc. Also, bio-stimulants showed positive eff ects on all traits, and the best results wereachieved under treatment with seaweed, followed by moringa extract. The correlation coeffi cients showed signifi cant positivecorrelations among calyxes yield and anthocyanin and zinc content as well as with other growth traits and photosyntheticpigments. These results highlighted the important role of nano zinc in improving the growth, yield, and quality of the roselleplant, as well as the positive eff ects of seaweed as a bioactive stimulant. Therefore, it is recommended to include nano zincand seaweed extract in fertilization programs for achieving a sustainable production system of such crops.
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