High-Temperature Influences Plant Bio-Stimulant-like Effects of the Combination Particle Film-Forming Materials-Foliar Fertilizers on Apple Trees

Carmen Eugenia Sîrbu, Mălina Deșliu-Avram, Traian Mihai Cioroianu, Diana Constantinescu-Aruxandei and Florin Oancea ()
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Carmen Eugenia Sîrbu: Department of Physico-Chemical Analysis, National Research and Development Institute for Soil Science, Agro-Chemistry and Environment-ICPA, Mărăşti Blvd. nr. 61, Sector 1, 011464 Bucharest, Romania
Mălina Deșliu-Avram: Department of Bioresources, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței nr. 202, Sector 6, 060021 Bucharest, Romania
Traian Mihai Cioroianu: Department of Physico-Chemical Analysis, National Research and Development Institute for Soil Science, Agro-Chemistry and Environment-ICPA, Mărăşti Blvd. nr. 61, Sector 1, 011464 Bucharest, Romania
Diana Constantinescu-Aruxandei: Department of Bioresources, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței nr. 202, Sector 6, 060021 Bucharest, Romania
Florin Oancea: Department of Bioresources, National Institute for Research & Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independenței nr. 202, Sector 6, 060021 Bucharest, Romania

Agriculture, 2023, vol. 13, issue 1, 1-16

Abstract: Particle film forming materials were introduced as a solution to reduce the effects of excessive solar irradiation on plant photosynthesis. Covering plant leaves with particle films leads to plant bio-stimulant-like effects: increased protection against abiotic stress and increased fruit quality. We used zeolites and diatomaceous earth carriers for foliar fertilizer, known for their application as particle film-forming material. The aim of this paper was to investigate the plant bio-stimulant-like effects of this combined two-in-one product on the yield of apple trees and their photosynthetic pigments and fruit quality. The experiments were conducted for two years, 2021 and 2022, which had different agroclimatic patterns: 2021 had a deficit of precipitation, whereas 2022 was warmer by more than +4.8 °C compared to the recorded average temperature. Applying particle film-forming material and foliar fertilizer reduces the degradation of the photosynthetic pigments by drought and excessive solar radiation by 25–30%. In the year with a deficit of precipitation there was an increased yield by an additional 11.56–12.38% and the fruit quality similarly increased. Such effects of these combined two-in-one products were limited in 2022 as the temperature was higher than normal by several degrees.

Keywords: particle film-forming materials; foliar fertilizer; plant bio-stimulant-like effects; high temperature (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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