期刊名称：Journal of Environmental Science and Technology
印刷版ISSN：1994-7887
电子版ISSN：2077-2181
出版年度：2015
卷号：8
期号：6
页码：330-337
DOI：10.3923/jest.2015.330.337
出版社：Asian Network for Scientific Information
摘要：In order to investigate the effect of drought stress and ozone on some properties of cucumber, a factorial experiment with complete randomized design was carried out in greenhouse at Khorasgan University, Isfahan, Iran in 2014. Experimental treatments were drought stress including three levels 100% (control), 80% (mild stress) and 60% of field capacity (severe stress) and three ozone concentrations in irrigation water (0, 0.5 and 1 ppm). After germination, cucumber seeds were grown in pots containing soil, cocopeat and perlite and fed with Hoagland solution and were imposed with drought stress and ozone treatments. The fruit weight per pot, stem thickness, ash weight, number of leaf and weight of root (fresh and dry) were determined. The results showed that across the ozone concentrations, drought stress significantly reduced fruit weight, leaf number, dry and fresh weight of root. Also, across the levels of drought stress , statistical testing showed a significant increase in fruit weight with increasing ozone concentrations. However, the highest (91.51 g) fruit weight was obtained at the third level of ozonated water (1 ppm) and 100% FC and for stem thickness (10.2 mm) was 60% FC and without ozone. The highest leaf number (48), fresh weight (6.22 g) and dry weight (2.62 g) of root was revealed at the 0.5 ppm ozone and 100% FC.
