E3S Web Conf.
Volume 165, 20202020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|Number of page(s)||4|
|Section||Environmental Engineering, Pollution Control and Prevention|
|Published online||01 May 2020|
Effects of DA-6 on Phosphorus and Potassium Uptakes of Tomato Seedlings under Cadmium Stress
1 Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu 611130, China
2 College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China
* Corresponding author: email@example.com
In order to study the effect of foliar DA-6 on the phosphorus and potassium content of tomato seedlings under cadmium stress, the pot experiment was used to cultivate ‘Zhongza 9’ tomato in 50 μmol/L CdCl2•2.5H2O nutrient solution. The effects of DA-6 at different concentrations (0, 10, 20, 30 and 40 mg/L) on the phosphorus and potassium uptakes of tomato seedlings under cadmium stress were studied. The results showed that when the DA-6 concentration was 20 mg/L, the phosphorus content in the root and stem of tomato seedlings increased significantly, which were 41.5% and 12.8% higher than the control. In all treatments, when the DA-6 concentration was 10 mg/L, the potassium content of tomato seedling roots, stems and shoots increased significantly, which were 25.4%, 10.0%, and 5.8% higher than the control. In summary, the low-concentration DA-6 treatment had a certain effect on increasing the phosphorus and potassium content of tomato, and there were differences in the optimal concentration of phosphorus and potassium content.
© The Authors, published by EDP Sciences, 2020
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