Liming as an ameliorator of copper toxicity in black oat (Avena strigosa Schreb.)
| Autor: | Daniel José Rosa, Alex Basso, Jucinei José Comin, Alcione Miotto, George Wellington Bastos de Melo, Marcelo Borghezan, Vítor Gabriel Ambrosini, Rosete Pescador, Gustavo Brunetto, Cláudio Roberto Fonsêca Sousa Soares |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Physiology 010501 environmental sciences engineering.material complex mixtures 01 natural sciences chemistry.chemical_compound Nutrient Dry weight medicine 0105 earth and related environmental sciences Lime biology Chemistry fungi Copper toxicity food and beverages biology.organism_classification medicine.disease Horticulture Agronomy Chlorophyll Avena strigosa Shoot engineering Agronomy and Crop Science Plant nutrition 010606 plant biology & botany |
| Zdroj: | Journal of Plant Nutrition. 40:404-416 |
| ISSN: | 1532-4087 0190-4167 |
| Popis: | This study aimed to assess the effect of liming as an ameliorator of copper (Cu) toxicity in black oats (Avena strigosa Schreb.) grown in soil with a sandy texture. The treatments were soil supplementation with increasing doses of lime (0.0, 0.5 and 1.0 g kg−1) and two of Cu (0 and 50 mg kg−1). Pre-germinated black oat seeds were sown for 30 days in the soil, subsequently, the plant height, root and shoot dry mass and concentration of total chlorophyll, chlorophylls a and b, carotenoids and total soluble carbohydrates and starch were analyzed. The dose of 50 mg kg−1 soil Cu caused a toxic effect on black oat plant growth and development, affected the internal distribution of nutrients, decreased the leaf chlorophyll concentration and increased the leaf concentration of total soluble carbohydrates and starch. Increasing lime doses ameliorated the toxic effects of Cu. |
| Databáze: | OpenAIRE |
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