1. Key Laboratory of Luminescence and Real-Time Analytical
Chemistry (Southwest University), Ministry of Education, College of
Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
2. Key Laboratory of Horticulture Science for Southern Mountainous Regions,
Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, P. R. China