title: Study of photosynthetic pigments changes of maize (Zea mays L.) under nano Tio2 spraying at various growth stages.
abstract: Tests were done on the effects of treatments of titanium dioxide spray on corn (Zea mays L.). The study was conducted as a factorial experiment in a randomized complete block design with four replications. Treatments consisted of two factors; the first factor was stage of plant growth that spraying was applied (vegetative stage, appearance of male flowers and female flowers); and the second factor was that of different concentrations of titanium dioxide nanoparticles (Tio2) that consisted of spray with water (control), titanium dioxide or bulk, nano titanium dioxide at concentrations of 0.01% and 0.03%. Results showed that effect of nano Tio2 was significant on chlorophyll content (a and b), total chlorophyll (a + b), chlorophyll a/b, carotenoids and anthocyanins. The maximum amount of pigment was recorded from the treatment of nano Tio2 spray at the reproductive stage (appearance of male and female flowers) in comparison with control. Thus, an application of nanoparticles (nanao Tio2) can facilitate an increase in crop yield, especially corn yield.
authors.affiliation: Agronomy and Plant Breeding Department, Abureyhan Campus University of Tehran, Emam Reza Boulevard, PO. Box:11365/4117, Pakdasht, Tehran, Iran ; Young Researchers Club, Islamic Azad University, Shahr-e-Qods Branch Fath Highway, Shahid Kalhor Boulevard, PO. Box: 37515-374, Shahr-e-Qods, Tehran, Iran.
authors.forename: Elham
authors.initials: E
authors.lastname: Morteza
authors.forename: Payam
authors.initials: P
authors.lastname: Moaveni
authors.forename: Hossein Aliabadi
authors.initials: HA
authors.lastname: Farahani
authors.forename: Mohammad
authors.initials: M
authors.lastname: Kiyani
keywords: Anthocyanins; Carotenoids; Chlorophyll; Maize (Zea mays L.); Nano Tio2