(2016). Reduction of Climate Change Damage Using Chemical Foliar Spray Treated Broad Bean Plants Grown at a Rural Site in Egypt. test, 56(1), 15-34. doi: 10.21608/ejbo.2016.342
. "Reduction of Climate Change Damage Using Chemical Foliar Spray Treated Broad Bean Plants Grown at a Rural Site in Egypt". test, 56, 1, 2016, 15-34. doi: 10.21608/ejbo.2016.342
(2016). 'Reduction of Climate Change Damage Using Chemical Foliar Spray Treated Broad Bean Plants Grown at a Rural Site in Egypt', test, 56(1), pp. 15-34. doi: 10.21608/ejbo.2016.342
Reduction of Climate Change Damage Using Chemical Foliar Spray Treated Broad Bean Plants Grown at a Rural Site in Egypt. test, 2016; 56(1): 15-34. doi: 10.21608/ejbo.2016.342

Reduction of Climate Change Damage Using Chemical Foliar Spray Treated Broad Bean Plants Grown at a Rural Site in Egypt

Egyptian Journal of Botany
Article 2, Volume 56, Issue 1, September 2016, Pages 15-34    PDF (710.15 K)
Document Type: Regular issue (Original Article)
DOI: 10.21608/ejbo.2016.342
Abstract
        ONG-TERM changes in the Earth’s climate and temperature …….patterns are one of the environmental threats that face our planet today. Broad bean plants (Vicia faba L. cv. Baladey) were grown at a temperate rural site in Sharkia, Egypt. Plants were grown in 12-open top chambers (OTCs) and 6-plots. Half of OTC's and plots are treated with ethylenediurea (EDU). Ethylene-diurea was used as a antiozonant factor.The air quality treatments consisted of charcoal-filtered (CF) air, nonfiltered (NF) air and ambient air (AA). The EDU (300 ppm) used as a foliar spray for seed germination and before the growth stages of the plants. Air pollutants monitoring data clearly showed high concentrations especially ozone (O3) with a mean value ranging from 39 to 56 ppb. Ethylene-diurea treatment caused significant increases in various growth parameters and total biomass accumulation in NF and AA environments. The weight of seeds plant-1 was higher by 40 to 50% in NF/300-EDU compared to 0-EDU-treated plants. Seed quality showed improvement for nutritional parameters such as sugars, proteins and K under 300-EDU treatment and thus enhanced the Quality Response Index (QRI) of seeds. This study concluded that 300-EDU caused retention of more biomass in leaves during vegetative period and transported more photosynthates towards reproductive parts, which resulted into yield enhancement.  Also, EDU helped in identifying the species susceptibility to climate change stress and therefore is very useful as monitoring tool to assess the impact of ambient air on plants under natural field conditions particularly in areas that have a moderate exposure to O3.
Keywords
Growth; Biomass; EDU; O3; beans; Seed quality index
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