- Eurasian Journal of Soil Science
- Vol: 1 Issue: 2
- Cadmium effects on potassium content and pepper seedling growth in different peat ratios
Cadmium effects on potassium content and pepper seedling growth in different peat ratios
Authors : Füsun Gülser, Ferit Sönmez
Pages : 110-115
View : 10 | Download : 2
Publication Date : 2012-06-01
Article Type : Other
Abstract :Effects of cadmium applications on plant growth and potassium contents of pepper seedlings were investigated in different mixtures of soil:peat ratios. This study was conducted with three different levels of Cd (Cd 0 =0, Cd 1 =2.5 and Cd 2 =5.0 ppm) and three different ratios of soil:peat (Pt 0 =soil:no peat, Pt 10 =soil:10% peat and Pt 20 =soil:20% peat) in a factorial experimental design with three replications. K contents of shoots and some criteria of pepper seedlings such as; shoot and root dry weights were significantly influenced with the soil:peat ratios. Interactions between soil:peat ratio and Cd significantly affected shoot and root dry weights and K contents of pepper seedlings. Application of 20% peat ratio significantly increased shoot dry weight. Mean root dryweights decreased with increasing Cd dose applications. The highest (7.0%) and the lowest (4.1%) K contents in shoots were determined in Pt 20 Cd 2 and Pt 0 Cd 2 applications, respectively. On the other hand, the highest (3.27%) and the lowest (2.12%) K contents in roots were determined in Pt 0 Cd 2 and Pt 20 Cd 0 applications, respectively. Mean Cd contentents in shoots were also significantly reduced with increasing K contents of shoots, especially in the mixture of soil:20% peat ratio.Keywords : Pepper seedling, peat, cadmium, potassium, plant growth