Use of biologically active substances in hops

https://doi.org/10.17221/655/2018-PSECitation:Procházka P., Štranc P., Pazderů K., Vostřel J., Řehoř J. (2018): Use of biologically active substances in hops. Plant Soil Environ., 64: 626-632.
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In four-year experiments, hop was treated with 7 biologically active substances in two terms during vegetation: Lignohumate max (a mixture of humic acids and fulvic acids), Lexin (a mixture of humic acids and fulvic acids enriched with auxins), Lexenzym (a mixture of humic acids and fulvic acids enriched with auxins, phytohormones and enzymes precursors), Ascophyllum nodosum seaweed extract, synthetic auxin, humic acids and fulvic acids alone. The chlorophyll content was monitored after the application both in the vine leaves and in the branch leaves. After harvesting of the hops from the individual treatments, the yield of dry hops was determined and the cones were analysed for the content of alpha bitter acids. The results show that the most effective hop treatment was the application of Lexin and Lexenzym. The Lexenzym treatment provided a yield of dry hops of 1.86 t/ha, i.e. 0.47 t/ha higher compared with untreated control. The Lexin treatment provided yield higher by 0.41 t/ha of dry hops compared with the untreated control, while the harvested cones contained the most alpha-bitter acids (4.57%).

References:
Adamčík J., Tomášek J., Pulkrábek J., Pazderů K., Dvořák P. (2016): Stimulation sorghum seed leading to enlargement of optimum conditions during germination and emergence  . Plant, Soil and Environment, 62, 547-551 https://doi.org/10.17221/556/2016-PSE
 
Anuradha S., Rao S.S.R. (2008): The effect of brassinosteroids on radish (<I>Raphanus sativus</I> L.) seedlings growing under cadmium stress. Plant, Soil and Environment, 53, 465-472 https://doi.org/10.17221/2307-PSE
 
Blunden Gerald, Jenkins Teifryn, Liu Yan-Wen (1996): Enhanced leaf chlorophyll levels in plants treated with seaweed extract. Journal of Applied Phycology, 8, 535-543 https://doi.org/10.1007/BF02186333
 
Domingos Rute F., Tufenkji Nathalie, Wilkinson Kevin J. (2009): Aggregation of Titanium Dioxide Nanoparticles: Role of a Fulvic Acid. Environmental Science & Technology, 43, 1282-1286 https://doi.org/10.1021/es8023594
 
Dřímalová D. (2005): Algal growth regulators. Czech Phycology, 5: 101–112. (In Czech)
 
Chen Y., Clapp C.E., Magen H. (2004): Mechanisms of plant growth stimulation by humic substances: The role of organo-iron complexes. Soil Science and Plant Nutrition, 50, 1089-1095 https://doi.org/10.1080/00380768.2004.10408579
 
Khan Wajahatullah, Rayirath Usha P., Subramanian Sowmyalakshmi, Jithesh Mundaya N., Rayorath Prasanth, Hodges D. Mark, Critchley Alan T., Craigie James S., Norrie Jeff, Prithiviraj Balakrishan (2009): Seaweed Extracts as Biostimulants of Plant Growth and Development. Journal of Plant Growth Regulation, 28, 386-399 https://doi.org/10.1007/s00344-009-9103-x
 
Kohout L. (2001): Brassinosteroids. Chemické listy, 95: 583. (In Czech)
 
Lee Yong Seok, Bartlett Richmond J. (1976): Stimulation of Plant Growth by Humic Substances1. Soil Science Society of America Journal, 40, 876- https://doi.org/10.2136/sssaj1976.03615995004000060023x
 
Nesvadba V., Černý J., Krofta K. (2011): Transfer of the hop (Humulus lupulus L.) alpha-bitter acid content to progenies of F1 and I1 generations in selected parental components. Plant, Soil and Environment, 49, 269-276 https://doi.org/10.17221/4124-PSE
 
Nováková O., Kuneš I., Gallo J., Baláš M. (2014): Effects of brassinosteroids on prosperity of Scots pine seedlings. Journal of Forest Science, 60, 388-393 https://doi.org/10.17221/58/2014-JFS
 
Pačuta V. (2013): Influence of preparations containing bioactive substances on sugar beet quantity and production quality. Sugar and Sugar Beet Journal in Czech, 129: 228–230. (In Czech)
 
Pavlovic V., Pavlovic M., Cerenak A., Kosir I.J., Ceh B., Rozman C., Turk J., Pazek K., Krofta K., Gregoric G. (2012): &nbsp; Environment and weather influence on quality and market value of hops. Plant, Soil and Environment, 58, 155-160 https://doi.org/10.17221/499/2011-PSE
 
Pokorný J., Pulkrábek J., Štranc P., Bečka D. (2011): Photosynthetic activity of selected genotypes of hops (Humulus lupulus L.) in critical periods for yield formation. Plant, Soil and Environment, 57, 264-270 https://doi.org/10.17221/30/2011-PSE
 
Procházka P., Štranc J., Pazderů K., Štranc J., Jedličková M. (2015a): The possibilities of increasing the production abilities of soya vegetation by seed treatment with biologically active compounds. Plant, Soil and Environment, 61: 279–284.
 
Procházka P., Štranc P., Kupka I., Štranc J., Pazderů K. (2015b): Forest seed treatment by brassinosteroids to increase their germination under stressful conditions. Journal of Forest Science, 61: 291–296.
 
Procházka P., Štranc P., Pazderů K., Štranc J. (2016): The influence of pre-sowing seed treatment by biologically active compounds on soybean seed quality and yield  . Plant, Soil and Environment, 62, 497-501 https://doi.org/10.17221/570/2016-PSE
 
Pavel Procházka, Přemysl Štranc, Kateřina Pazderů, Jaroslav Štranc, Jan Vostřel (2017): Effects of biologically active substances used in soybean seed treatment on oil, protein and fibre content of harvested seeds. Plant, Soil and Environment, 63, 564-568 https://doi.org/10.17221/702/2017-PSE
 
Procházka P., Štranc P., Malíková K., Vostřel J., Štranc J. (2017): The benefit of the use of biologically active substances in the production of hops. Agromanuál, 5: 64–65. (In Czech)
 
Rybka A., Heřmánek P., Honzík I., Jošt B., Podsedník J., Vent L. (2014): The effect of work of inclined belt conveyors on the quality of hop separation in hop picking line. Plant, Soil and Environment, 60, 184-190 https://doi.org/10.17221/69/2014-PSE
 
Řehoř J., Procházka P., Vostřel J., Fraňková A. (2018): Effect of biopesticide application on chlorophyll content in hop leaves. Úroda, 4: 94–95. (In Czech)
 
Senesi N., Loffredo E. (1999): The chemistry of soil organic matter. Soil Physical Chemistry, 2: 239–370.
 
Štranc P., Štranc J., Štranc D., Kohout L., Šnajdau R., Libich V., Kubatko T. (2008): Phytohormones and their significance in hop production. Chmelařství, 6: 81–86. (In Czech)
 
Veselá L., Kubal M., Kozler J., Innemanová P. (2005): Structure and properties of natural humic substances of the oxyhumolite type. Chemické listy, 99: 711–717. (In Czech)
 
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