Influence of ultraviolet irradiation of perennial grasses seeds on their sowing quality
https://doi.org/10.32634/0869-8155-2021-352-9-97-100
Abstract
A new direction in pre-sowing seed preparation is environmentally friendly and energyefficient ultraviolet irradiation, which increases germination, reduces seed infection, and improves growth force. In this regard, the experiment of studying the effect of UV irradiation on the sowing qualities and morphophysiological parameters of the seeds of the birds-foot trefoil and awnless brome was laid at the UdmFRC UB RAS in 2019. Use of UV rays of range A with a wavelength of 315–400 nm for 5 min reduced the infection of the birds-foot trefoil seeds by 3.2%, increased the length of the sprout by 0.81 cm and the strength of growth — by 5.4% in comparison with untreated seeds. There was also a tendency for a decrease in seed hardness by 2.5%, an increase in root length by 0.41 cm, and the degree of seedling development by 0.12 points. The most effective for awnless brome seeds was UV treatment for 35 minutes, which led to an increase in germination by 14.5%, a decrease in seed infection by 5.8%. There was also a tendency to improve the morphological parameters of seedlings: the length of the sprout increased by 0.9 cm, the length of the root — by 0.88 cm, the length of the coleoptile — by 0.30 cm. The strength of growth in this variant was 9.3% higher than in the control without treatment. In general, the treatment of perennial grasses seeds with ultraviolet light reduced infection, increased laboratory germination and strength of growth, and reduced seed hardness.
About the Authors
Zh. S. Nelyubina
Udmurt Federal Research Center of the UB of the RAS
Russian Federation
Russian Federation
Nelyubina Zhanna Sergeevna, Candidate of Agricultural Sciences, Senior Researcher
34, T. Baramzina st., Izhevsk, Udmurt Republic, 426067
N. I. Kasatkina
Udmurt Federal Research Center of the UB of the RAS
Russian Federation
Russian Federation
Kasatkina Nadezhda Ivanovna, Candidate of Agricultural Sciences, Senior Researcher
34, T. Baramzina st., Izhevsk, Udmurt Republic, 426067
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Review
For citations:
Nelyubina Zh.S., Kasatkina N.I. Influence of ultraviolet irradiation of perennial grasses seeds on their sowing quality. Agrarian science. 2021;(9):97-100. (In Russ.) https://doi.org/10.32634/0869-8155-2021-352-9-97-100
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