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Necessity of disinfecting water for crop irrigation

Orlikowski L. B., Treder W., Ptaszek M., Trzewik A., Kowalczyk W., Łazęcka U.

Infrastruktura i Ekologia Terenów Wiejskich

2017

nr IV/1

1387--1400

The purpose of that article was to show the significance of water as the source of plant pathogens, and need of it effective disinfection methods in modern agriculture and horticulture. The increase in the cost of agricultural water use for crop irrigation and the necessity of using the same water several times, as well as the changing climatic conditions, including prolonged shortage of atmospheric precipitation and often extreme temperatures during the summer, necessitate the selection of an effective, easy to apply and economical method of disinfecting recirculated water to eliminate or minimize the occurrence of the most serious plant pathogens inhabiting various water sources. Among them, microorganisms of the genera Phytophthora, Pythium and Fusarium, and the species Rhizoctonia solani, Verticillium dahliae and some pathogenic bacteria pose the most serious threat. Some of them can be found in rivers, streams, ponds and water reservoirs, others are soil-borne pathogens that cause root and stem base rot of many plant species. The available literature describes at least a dozen methods of water disinfection, among them slow filtration through sand or lava filters, chlorination and heating. The literature data indicates that the use of sand filters is the most effective, safe and cheapest method of water disinfection.

Effectiveness of electron beam irradiation in the control of some soilborne pathogens

Orlikowski L. B., Migdał W., Ptaszek M., Gryczka U.

Nukleonika

2011

Vol. 56, No. 4

357-362

Electron beam (EB) irradiation was tested against Botrytis cinerea, Pythium ultimum and Phytophthora citricola the most dangerous pathogens causing stem and root rot of seedlings, cuttings and older plants. In the laboratory trials cultures of 3 species were irradiated with doses 0 (control), 1.5, 3.0, 4.5 and 6.0 kGy whereas peat was treated with 10,15 and 25 kGy. P. citricola was the most sensitive species for irradiation. In greenhouse trials 15 kGy irradiation of peat protected chrysanthemum cuttings against B. cinerea and P. ultimum as well as rhododendron young plants against P. citricola. Irradiation of peat did not influence the growth and development of the tested plants.

Badania nad przydatnością 2,4-diacetylofloroglucyny (DAPG) jako substancji aktywnej w ochronie roślin przed patogenami glebowymi

Maliński Z. T., Burgieł Z. J., Waszniewska M., Al Amin I., Zakrzewski J., Karpińska M.

Przemysł Chemiczny

2007

T. 86, nr 6

496-500