Differences of Cd and Pb Accumulation in Different Cultivars of Phaseolus coccineus L. in Yunnan Alpine Mountain Area

• LUO Ping, 
• YANG Yijie, 
• ZHANG Xinshuai, 
• LI Bo, 
• ZHAN Fangdong, 
• ZU Yanqun, 
• HE Yongmei