目的：探讨在人体试验中以最小持续性黑化量(MPPD)作为判断长波紫外线(uva)防护效果指标的可行性。

Objective: To study the feasibility of using minimal persistent pigment dose (MPPD) as an objective parameter in evaluating UVA protection in human.

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用五种遗传稳定型分析方法对四个区域化试验点的5个美洲黑杨无性系生长量的基因型与环境交互作用进行了分析。

The genotype-environment interaction of 4-year DBH growth was analyzed in 4 locations for 5 cottonwood clones by using 5 genetic stability analysis methods.

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