Supplementary phosphorus can alleviate boron toxicity in tomato |
| |
Authors: | Cengiz Kaya A. Levent Tuna Murat Dikilitas Muhammed Ashraf Sultan Koskeroglu Murat Guneri |
| |
Affiliation: | 1. Harran University, Agriculture Faculty, Soil Science and Plant Nutrition Department, Sanliurfa, Turkey;2. Mugla University, Biology Department, Mugla, Turkey;3. Harran University, Agriculture Faculty, Plant Protection Department, Sanliurfa, Turkey;4. Department of Botany, University of Agriculture, Faisalabad, Pakistan;5. Mugla University, Ortaca Vocational School, Mugla, Turkey |
| |
Abstract: | The effect of supplementary phosphorus on growth and yield of tomato (Lycopersicon esculentum cv. Target F1) plants grown at high boron was investigated. The results showed that high B reduced dry matter, fruit yield and chlorophyll content. High B plus 0.5 or 1 mM P increased plant dry matter, fruit yield and chlorophyll concentrations as compared to high B treatments only. Membrane permeability was not increased significantly due to high B application. In the leaves of plants grown at high boron treatments, superoxide dismutase (SOD), peroxidase (POD) and polyphenol oxidase (PPO) levels were increased. However, supplementary P to nutrient solution containing high B reduced the activities of the earlier mentioned enzymes in leaves but their levels were still higher than those at the control treatments. The study revealed that B status affects the activities of some antioxidant enzymes examined. Boron (B) concentrations increased in leaves and roots in the highest external B treatment as compared to the control treatment. Concentrations of Ca, P and K were significantly lower in the leaves of plants grown at high B than those in the control plants. Supplemented nutrient solution containing high B with 0.5 or 1 mM P increased the tissue concentrations of nutrients. These results indicate that supplementary P can mitigate the adverse effects of high B on fruit yield and growth in tomato plants. |
| |
Keywords: | Boron toxicity Phosphorous Tomato Calcium Antioxidant enzymes |
本文献已被 ScienceDirect 等数据库收录! |
|