Effects of Two Ecotypes Mutual Grafting on Nutrient Absorption of Post Generations of Solanum photeinocarpum under Cadmium Stress

A pot experiment was carried out to study the effects of two ecotypes mutual grafting on nutrient absorption of post generations of Solanum photeinocarpum under cadmium stress. Two ecotypes mutual grafting increased the total N, total P contents in roots, stems and leaves of post generations of S. photeinocarpum under Cd stress, which were benefit to the growth of S. photeinocarpum. However, mutual grafting had little effects on total K content in roots of post generations of S. photeinocarpum, and had no significant effects on total K content in stems and leaves of that. Mutual grafting increased the available P and available K concentrations, but had little effects on soil alkali soluble N concentration. Therefore, two ecotypes mutual grafting could promote the nutrient uptake of post generations of S. photeinocarpum under Cd stress.