id: 32538
Title: Chlorophyll fluorescence induction method in assessing the efficiency of pre-sowing agro-technological construction of the oilseed radish (Raphanus sativus L. var. oleiformis Pers.) agrocenosis
Authors: Tsytsiura Y.
Keywords: chlorophyll fluorescence induction, fertilization rate, oilseed radish, row spacing, seeding rate, yield.
Date of publication: 2023-01-26 14:14:41
Last changes: 2023-01-26 14:14:41
Year of publication: 2022
Summary: Chlorophyll fluorescence induction (CFI) is a measure of photosynthetic performance and is widely used by plant physiologists and ecophysiologists. The basic principle of CFI analysis is relatively straightforward. The specified method of analysis during 2015–2020 was applied to assess the optimality of selection of technological sowing parameters such as sowing rate (estimated interval 0.5–4.0 million germinable seeds ha-1), row width (15–30 cm), pre-sowing fertilizer (N0–90P0–90K0–90) for three varieties of oilseed radish. The widely tested basic indicators of the CFI curve (F0, Fpl, Fm, Fst) were used, as well as possible indices and ratios calculated on their basis in accordance with the CFI analysis methodology. For the first time, the species characteristics of oilseed radish were investigated by the nature of the CFI curve in relation to spring rape, white mustard, and spring mustard on the 1.5 germinable seeds ha-1 (30 cm row width, N0P0K0) variant. It was established by the stress sensitivity category of the PSII photosystem that a reliable possibility of using the CFI method for identification studied technological options for sowing. The share of the influence of the technological factor of the sowing method (in %) on the formation of indicators F0, Fpl, Fm, Fst in the dispersion scheme of the experiment was consistently 19.3, 8.4, 19.5, 6.3. The influence of the seeding rate factor on the results of F0, Fpl, Fm, Fst was (in %) 26.6, 9.5, 42.3, 9.3 and the influence of the fertilizer factor was 13.5, 16.4, 5.7, 12.7, respectively.
URI: http://socrates.vsau.org/repository/getfile.php/32538.pdf
Publication type: Статті Scopus
Publication: Agronomy Research. 2022. Vol. 20 (3). P. 682-724.
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Published by: Адміністратор
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