Yield, Quality and Efficiency of Different Bee Pollination on Greenhouse Strawberry in Chongqing

• LUO Wenhua, 
• CAO Lan, 
• GAO Lijiao, 
• CHENG Shang, 
• YIN Suhui, 
• WANG Ruisheng, 
• DAI Rongguo, 
• LIANG Mingrong, 
• XIE Hua, 
• LIU Jialin