Characteristics of vital features of strawberry plants by long-term covering with non-woven material

doi: 10.30766/2072-9081.2018.65.4.64-70.

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O.N. Budagovskaya, Doctor in Engineering, leading researcher,
I.I. Kozlova, PhD in Agriculture, leading researcher
Federal State Scientific Institution "I.V. Michurin Federal Scientific Center", Michurinsk, Tambov Region, Russian Federation, e-mail: info@fnc-mich.ru

The vital features of Elsanta and Vima Xima strawberry varieties by longterm covering with white and yellow "Spunbond" fabric of 17 g/m2 density in the moderate continental climate of the Central Black Earth Region of the Russian Federation were studied. In 2015-2016 during the process of vegetation light intensity, soil and air temperature as well as dry weight, leaf area, maximum Fm and stationary F_T fluorescence level, photosynthetic activity index Y = (Fm - F_T)/Fm were determined. Both varieties are characterized by a decrease in the Y parameter of strawberry leaves by 16-22% under white material, especially during active vegetation (July - first decade of August), which is less evident under yellow fabric (3-9 %). It is shown that such a reaction is due to the optical properties of the cover, as the yellow materi-al transmission index is 7.2% higher in the red region of the spectrum and 13.8% lower in the blue region of the spectrum as compared to white fabric. By the development of new agricultural technologies and correct interpretation of the received re-sults with the use of non-woven polypropylene cover material "Spunbond", especially for long-term operation, it is necessary to control and take into account not only the shielding but also the spectral characteristics of the material.

Keywords: garden strawberry, photosynthetic activity, non-woven polypropylene material, light transmission, PAR region

For citation:

Budagovskaya O.N., Kozlova I.I. Characteristics of vital features of strawberry plants by long-term covering with non-woven material // Agrarnayа nauka Evro-Severo-Vostoka. 2018. Vol. 65. no. 4. pp. 64-70. doi: 10.30766/2072-9081.2018.65.4.64-70.