Study of Nano Particles TiO2 Spraying on Some Yield Components in Barley (Hordem Vulgare L.)

摘要

An experiment was carried out using a factorial on the basis of completely randomized block design. The factor of studied included of TiO2 Nano particles spraying affected on some physiological and chemical parameters in barley (Hordem vulgare L.). The factors were spraying in growth stages (stem elongation and 4 leaves stage) and five levels of Tio2 including: control, Bulk Tio2, 0.01, 0.02, and 0.03 percentage). The characters measured were: grain yield, harvest index, weight of spikelets and number of spikelets. The results showed that effect of TiO2 Nano particles spraying significant on grain yield and number of spikelets in P ≤ 0.05 but The results showed that effect of TiO2 Nano particles spraying non significant on harvest index, weight of spikelets. Mean comparison showed that the highest grain yield (33903.9 t/ha), weight of spikelets (5.8 m2) and number of spikelets (678.5 m2) were achieved by Nano particles 0.03 percentage but the highest harvest index (27.5) were achieved by Dioxide TiO2 Nano particles.