Cadmium effects on potassium content and pepper seedling growth in different peat ratios

Authors : Füsun GÜLSER, Ferit SÖNMEZ

Pages : 110-115

View : 17 | Download : 6

Publication Date : 2012-06-01

Article Type : Research Paper

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 insert ignore into journalissuearticles values(Cd 0 =0, Cd 1 =2.5 and Cd 2 =5.0 ppm); and three different ratios of soil:peat insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(7.0%); and the lowest insert ignore into journalissuearticles values(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 insert ignore into journalissuearticles values(3.27%); and the lowest insert ignore into journalissuearticles values(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