Abstract: Taking the one-year cutting-seedlings of four grape cultivars (Kyoho, Muscat Hamburg, Long Yan, and Ze Xiang) as test materials, their root mitochondr ial hydrogen peroxide (H2O2) content, membrane permeability transition pore (MPTP), membrane potential (Δψ), cytochrome C (Cyt c) content, and root activity were measured under effects of CdCl2. For all test grape cultivars, the root mitochondrial H2O2 content and MPTP increased, but the Δψ, Cyt c content, and root activity decreased after treated with 05 mmol CdCl2·L-1. The m itochondrial H2O2 content and Cyt c content were in the sequence of Kyoho>Ze Xiang>Muscat Hamburg>Long Yan, while the root activity, MPTP, and Δψ were in ad verse, i.e., Long Yan>Muscat Hamburg>Ze Xiang>Kyoho. Among the test grape cultiv ars, the root activity of Kyoho was easier to be inhibited under Cd stress, while t hat of Long Yan was least affected by CdCl2.

Key words: radial basis function neural network model, ordinary kriging, regression kriging, soil nutrient.