Changes in Biochemistry and Yield in Response to Biostimulants Applied in Bean (<i>Phaseolus vulgaris</i> L.)
Anna Kocira | Joanna Lamorska | Rafał Kornas | Natalia Nowosad | Marzena Tomaszewska | Danuta Leszczyńska | Katarzyna Kozłowicz | Sylwester Tabor
Biostimulants are preparations that favorably impact the growth, development, and yield of plants. The research objective was to examine the effect of the frequency of use of Kelpak, Terra Sorb Complex and Fylloton biostimulants on improving the yield and nutritional properties of beans. Been seeds (variety Oczko) were sown in the first week of May in 2015, 2016, and 2017. During the growing season, Fylloton (1%), Terra Sorb Complex (0.5%), and Kelpak (1%) biostimulants were applied by single (BBCH 12-13) and double spraying of plants (BBCH 12-13, BBCH 61). All variants of treatment with biostimulants were compared with the control. Single application of Kelpak had a positive effect on increasing the number of pods. The double application of Kelpak increased the number and yield of seeds and protein contents. Double application of Fylloton increased the number of seeds, and application of Terra Sorb Complex increased the protein content in the beans. Application of all biostimulants increased the flavonoid content. Biostimulants containing seaweed (Kelpak−<i>Ecklonia maxima</i> extract) or amino-acid extracts (Fylloton−<i>Ascophyllum nodosum</i> extract and amino acids or Terra Sorb Complex−amino acids) increased the seed yield, while improving its quality by increasing the content of protein, polyphenols, and flavonoids. It was found that the double application of Kelpak biostimulant stimulated the yield and quality of beans to a greater extent.
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