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| ASHKAVAND,PEYMAN; ZARAFSHAR,MEHRDAD; TABARI,MASOUD; MIRZAIE,JAVAD; NIKPOUR,AMIRREZA; BORDBAR,SEYED KAZEM; STRUVE,DANIEL; STRIKER,GUSTAVO GABRIEL. |
| We studied the physiological responses of Prunus mahaleb (Mahaleb) seedlings to drought stress when previously irrigated (or not) with different concentrations of SiO2 nanoparticles (SNPs). SNPs were applied at four concentrations (0, 10, 50 and 100 mg L-1) for 45 days, and then seedlings were subjected to three watering treatments including low (300 mL water every 3 d), moderate (150 mL water every 3 d) and severe drought stress (no irrigation) for 19 days. Results showed that gas exchange photosynthesis, stomatal conductance, and transpiration rate were significantly less impacted by severe drought stress when seedlings were pretreated with SNPs at high concentrations. Beneficial effects of SNPs pretreatment were evident in the nutritional status of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pre-treatment; Silica nanoparticles; Drought; Stress alleviation; Photosynthesis.. |
| Ano: 2018 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722018000200007 |
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| Reis,Matheus Mendes; Silva,Ariovaldo José da; Santos,Leonardo David Tuffi; Lopes,Érika Manuela Gonçalves; Barros,Rodrigo Eduardo; Donato,Luan Mateus Silva. |
| ABSTRACT Wastewater can be considered an excellent nutritional and water source for cultivated plants. However, the presence of high concentrations of salts and toxic compounds can negatively affect crops. The effect of irrigation with different concentrations of treated wastewater on the accumulation of nutrients and gas exchange aspects of millet (Pennisetum glaucum (L.) R. Br.) grown in clay soil and sandy loam soil was analyzed. This study was conducted in a greenhouse (16°40’57,50” S; 43°50’26,07” O; 650 m) in a 5 x 2 factorial design, consisting of five levels of concentration of treated wastewater (0, 25, 50, 75, and 100%), combined with two types of soil (clay and sandy loam). The experiment was designed in randomized blocks with four replicates.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pennisetum glaucum; Water reuse; Nutrient absorption; Photosynthesis.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100242 |
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