Possibilities of using products containing amino acids in the protection of roses against Podosphaera pannosa and their influence on plant development

Abstract

Possibilities of using products containing amino acids in the protection of roses against Podosphaera pannosa and their influence on plant developmentMożliwość wykorzystania środków zawierających aminokwasy w ochronie róż przed Podosphaera pannosa oraz ich wpływ na rozwój roślin Adam Wojdyła* SummaryThe study assessed the influence of the plant growth promoter Agro-Sorb Folium and foliar fertilizers Agro-Sorb L-Amino and Agro--Sorb Radiculum, used 4 times at 7-day intervals as foliar spray application on roses grown in a greenhouse, on the development of disease symptoms caused by Podosphaera pannosa. Agro-Sorb Folium and Agro-Sorb L-Amino were applied at the concentrations of 0.25, 0.5 and 1%. Their effectiveness ranged from 64 to 98%. An increase in the concentration of the tested products caused an increase in their effectiveness. Agro-Sorb Radiculum used at the concentration of 0.5% showed an effectiveness of about 85%. The fertilizers Agro-Sorb L-amino and Agro-Sorb Radiculum showed an effectiveness of 21.7% and 64%, respectively after a 2-fold watering treatment, and 17% and 10% after a 4-fold applications. All the tested products used as foliar or watering application caused significant stimulation of the growth of rose shrubs. None of the products caused changes in the appearance of roses (phytotoxicity).Key words: Podosphaera pannosa; Rosa sp.; rose; powdery mildew; amino acids; effectiveness StreszczenieOceniano wpływ stymulatora wzrostu roślin Agro-Sorb Folium, nawozów dolistnych Agro-Sorb L-Amino oraz Agro-Sorb Radiculum, stosowanych 4-krotnie co 7 dni do opryskiwania róż uprawianych w szklarni, na rozwój choroby powodowanej przez Podosphaera pannosa. Agro-Sorb Folium oraz Agro-Sorb L-Amino aplikowano w stężeniu 0,25; 0,5 oraz 1%. Ich skuteczność wynosiła od 64 do 98%. Wzrost stężenia badanych środków powodował zwiększenie ich skuteczności. Agro-Sorb Radiculum w stężeniu 0,5%, zastosowany do opryskiwania róż, wykazywał około 85% skuteczności. Nawozy Agro-Sorb L-Amino oraz Agro-Sorb Radiculum po 2-krotnym podlaniu róż wykazywały 21,7% oraz 64% skuteczności, a po 4-krotnym odpowiednio 10% i 17%. Wszystkie badane środki stosowane do opryskiwania lub podlewania powodowały istotną stymulację wzrostu krzewów róż. Żaden z badanych środków nie powodował zmian w wyglądzie róż (fitotoksyczności).Słowa kluczowe: Podosphaera pannosa; Rosa sp.; róża; mączniak prawdziwy; aminokwasy; skuteczność Instytut Ogrodnictwa Konstytucji 3 Maja 1/3,

Potential of using products containing amino acids in the protection of garden pansy (Viola wittrockiana) against pansy leaf anthracnose (Colletotrichum violae-tricoloris) and their impact on plant growth

“…Application of the products by watering proved to be significantly more effective in stimulating plant growth than application by spraying. The results obtained have confirmed the author's previous studies, in which all the tested products used for spraying or watering caused significant stimulation of the growth of rose bushes (Wojdyła 2017). The tested amino acids or foliar fertiliz-ers, due to their activity as promoters of plant growth and development, and also as inhibitors of the development of many foliar pathogens, are suitable for use in the integrated protection of pansy plants against diseases.…”

“…The relatively high effectiveness of the tested products containing amino acids has confirmed the results of the previous studies in which Agro-Sorb Folium, Agro-Sorb L-Amino + and Agro-Sorb Radiculum at the concentrations of 0.25, 0.5 and 1% used for spraying greenhouse-grown roses 4 times at 7-day intervals showed an efficacy from 64 to 98% in limiting the development of powdery mildew caused by Podosphaera pannosa (Wojdyła 2017). An increase in their concentration resulted in an increase in their effectiveness.…”

“…Agro-Sorb Radiculum used at the concentration of 0.5% for spraying roses had an efficacy of about 85%. The fertilizers Agro-Sorb L-Amino + and Agro-Sorb Radiculum showed an efficacy of 21.7 and 64%, respectively, after watering the roses 2 times, and 10 and 17%, respectively, after 4 watering treatments (Wojdyła 2017). Similarly, high effectiveness of the above products was demonstrated in the field studies in the protection of string beans against S. sclerotiorum (Wojdyła and Sobolewski 2016).…”

Wpływ nawozów zawierających wolne aminokwasy na plonowanie współczesnej oraz dawnych odmian pszenicy zwyczajnej w produkcji ekologicznej

“…In other studies, fertilizers with amino acids mitigated the harmful effects of soil salinity in field bean and corn crops [Ertani et al 2013, Sadak et al 2015]. The effectiveness of amino acid formulations was also demonstrated in protecting plants from disease culprits [Wojdyła 2017[Wojdyła , 2018.…”