Effects of Copper on Flowering Characteristics of Impatiens hawkeri

[Objective] The effects of copper on flowering characteristics of Impatiens hawkeri were studied.[Method] 0,3.2×10-9,3.2×10-7,3.2×10-6,3.2×10-5mol/L copper were used to treat Impatiens hawkeri in sand culture conditions,and after 60 days,all indicators were determined and petal epidermal cells were microscopic observed.[Result] When copper concentration was 3.2×10-7 mol/L in nutrient solution,Impatiens hawkeri had the deepest flower color,the biggest flower diameter and the most numerous flowers number among all copper treatments.When copper concentration was 3.2×10-5mol/L,Impatiens hawkeri had the palest flower color,and two pieces of wing petal of Impatiens hawkeri turn back into tube-shape.[Conclusion]Different concentration copper can suitably adjust the flower shape and flower color of Impatiens hawkeri.