Effect of acute UV irradiation of barley in different stages of organogenesis on yield

2nd International (15th Regional) Scientific Conference "Technogenic Systems and Environmental Risk"

工业技术（总论）;生态环境科学

Tsygvintsev, P.N.^1 ; Guseva, O.A.^1 ; Tatarova, M Yu^1

Russian Institute of Radiology and Agroecology, Kievskoe sh. 109 km, Obninsk, Russia^1

关键词: Adverse effect;    Different stages;    Plant development;    Pollen sterility;    Substantial reduction;    UV irradiation;    UV-A-radiation;    UVB radiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/487/1/012032/pdf
DOI  :  10.1088/1757-899X/487/1/012032

来源: IOP

【 摘 要 】

The negative effect of acute barley irradiation depends both on the spectrum of UV radiation and on the stage of plant development. UV-B radiation, having a higher photon energy, has the greater negative effect compared to UV-A radiation at the same dose of irradiation. During the vegetation, barley is the most sensitive to the influence of ultraviolet at the II-V stages of organogenesis (in the transition from the vegetative to the generative stage of development). The adverse effect of UV-B radiation on the grain yield shows in the substantial reduction of flowers in the ear during their laying and probably in the pollen sterility.