Regulatory Action Of Nano-Materials On Physiological Of Two Ornamental Bamboo

In order to study the regulatory action of nano-materials on physiological characteristics of bamboos, Indocalamus barbatus McClure and Pleioblastus kongosanensis aureostriaus Muroi et Y. Tanaka were selected as the experimental material in this paper, and through the method of foliar spray, the effect of nano-particles on physiological characteristics and antiacid ability of this two ornamental bamboo were studied. Results as followes:1.The effect of nano-TiO2 and nano-SiO2 on physiological characteristics of Indocalamus barbatus McClureThrough the treatment of nano-TiO2 and nano-SiO2, PSâ…¡potential activity, actual photochemical efficiency, electron transport rate and photochemical quench of Indocalamus barbatus were improved. Treatment of nano-TiO2 didn't change the trend of diurnal course of photosynthesis, but which effected the factors of midday depression, and nano-SiO2 relieved the midday depression to some extent, in a word, the photosynthesis of Indocalamus barbatus was score enhanced by means of treatment of two materials; As well as nano-TiO2 and nano-SiO2 promoted the absorption of nitrogen, phosphorus and potassium on leaves, inproved the protein content and antioxidant enzyme activity. Generally, the treatment can of 150 mg/L nano-TiO2 and 300 mg/L nano-SiO2 were better.2.The effect of nano-TiO2 and nano-ZnO on acid-fast ability of Pleioblastus kongosanensis aureostriaus Muroi et Y. TanakaTreatment of nano-TiO2 and nano-ZnO can alleviate the visible injury caused by acid stress, inhibit the decrease of protein content and chlorophyll content, also delay the increase of cell membrane permeability and the growth of MDA content; Suitable concentration nano-TiO2 and nano-ZnO can improve the SOD and POD activity. On the whole, Nano-Materials enhanced the acid-fast ability of Pleioblastus kongosanensis aureostriaus, which the treatment can of 150 mg/L nano-TiO2 and 150 mg/L, 450 mg/L nano-ZnO were better.