Field similarity of seeds and survival of coriander plants depending on fertilizer and sowing rate
DOI:
https://doi.org/10.31548/dopovidi.2020.02.021Keywords:
varieties, sowing rates, percentage of plant survival, fertilization system, field germinationAbstract
The main indicator of the quality of the seed material is the laboratory seed germination, which affects the field, which, in turn, depends on the formation of the optimal plant stand density, which determines the final result - yield. Therefore, the study of field germination of seeds and survival of coriander plants is relevant. To determine the effectiveness of the researched options, the accuracy and reliability of experimental information, the leading methods of this research were: field, laboratory and statistical. The aim of the research was to identify the influence of the rate of seed sowing, fertilization and the characteristics of the morphobiotype of varieties on the field germination of seeds and the survival of coriander plants in the central forest-steppe of Ukraine. The research was conducted during 2013–2016 on the typical low-humus chernozem of the experimental field of the separate division of NUBiP of Ukraine "Agronomic Research Station". Three varieties of coriander Oxanit, Nectar and Karibe, four seed sowing rates of 1,5, 2,0, 2,5 and 3,0 million pieces/ha and three fertilization systems N45P20K40, N90P40K80, N135P60K120 were studied. It was established that increasing the rate of fertilizers causes a tendency to decrease field germination of seeds. With the introduction of the maximum rate of N135P60K120 fertilizers, the field germination of seeds decreased compared to the control variant N45P20K40 by 1,5–3,3 %, depending on the variety. With an increase in the rate of sowing seeds from 1,5 to 3,0 million units/ha, the field germination of coriander seeds partially decreased by 0,5–2,8%. With an increase in the sowing rate from 1,5 million pcs./ha to 3,0 million pcs./ha, the survival of coriander plants decreased from 1,4 to 5,6 % in the Oxanit variety, from 4,6 to 6,0 % in Nectar , Caribbean – 1,2–11 %. With the application of fertilizers in the norm N135P60K120 contributed to the growth and survival of coriander plants by 3,3–10,5 %.
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