highly significantP < 0.01
marginally significantP < 0.1
Statistical significance of the effects was indicated as follows: highly significant (** P < 0.01), significant (* P < 0.05), and marginally significant (+ P < 0.1).
Statistical significance of the effects was indicated as follows: highly significant (** P < 0.01), significant (* P < 0.05), and marginally significant (+ P < 0.1).
However, the concentrations of mineral elements showed a decreasing trend under eCO 2 , and the response of the stem was more pronounced than that of the leaf and grain.