scholarly journals Biotic relations between Rhizoctonia solani (damping-off pathogen) and soil fungal communities from forest nursery

2002 ◽  
Vol 38 (SI 1 - 6th Conf EFPP 2002) ◽  
pp. 235-238
Author(s):  
S. Stepniewska ◽  
M. Mańka
Keyword(s):  
Pinus Sylvestris ◽  
Rhizoctonia Solani ◽  
Scots Pine ◽  
Soil Fungi ◽  
Considerable Extent ◽  
Fungal Communities ◽  
Forest Nursery ◽  
Damping Off ◽  
Supporting Effect ◽  
Severe Isolate

In forest nursery Wronczyn (central-west Poland) the occurrence of Scots pine (Pinus sylvestris L.) seedlings damping-off<br />caused by Rhizoctonia solani Kühn is connected with a strong supporting effect of soil fungi community on R. solani.<br />Both the soil fungi community isolated in June and in October 1999 supported the pathogen growth to considerable extent.<br />In both months the support was bigger in the case of more severe isolate of the pathogen.

scholarly journals Effect of soil fungi communities on the growth of damping-off pathogens in relation to incubation temperature and medium pH

2014 ◽  
Vol 35 (2) ◽  
pp. 275-290 ◽  
Author(s):  
Małgorzata Kacprzak ◽  
Małgorzata Mańka
Keyword(s):  
Rhizoctonia Solani ◽  
Soil Fungi ◽  
Incubation Temperature ◽  
Fusarium Avenaceum ◽  
Trichoderma Atroviride ◽  
Forest Nursery ◽  
Damping Off ◽  
Medium Ph ◽  
Saprotrophic Fungi

Four communities of saprotrophic fungi from a forest nursery soil were tested for their effect on the <i>in vitro</i> growth of damping-off pathogens: <i>Rhizoctonia solani, Fusarium avenaceum, F. culmorum, F. oxysporum</i> and <i>F. solani</i> in relation to incubation temperature (5, 10, 15, 20 or 25°C) and medium pH (4.3; 5.6 or 7.5). The soil fungi communities weakly suppressed the growth of pathogens studied only at the lower temperatures (5 or 10°C). At the higher temperatures the communities tested supported the growth of all pathogens. The supporting effct was increasing with the increase of temperature, independently of pH. The effect was highly dependent on incubation temperature and not dependent on medium pH (P<0.05, analysis of variance). Duncan's multiple range tests indicate no significant differences (in the majority of combinations) in the effect of soil fungi communities on the <i>in vitro</i> growth of tested pathogens between temperatures 15, 20 and 25°C, independently of medium pH. The growth of the pathogens studied was suppressed mainly by: <i>Gliocladium catenulatum, Trichoderma atroviride, T. koningii, T. viride, Truncalella truncata<i> and <i>Zygorrhynchus moelleri</i>

scholarly journals The effects of salicylic acid, oxalic acid and chitosan on damping-off control and growth in Scots pine in a forest nursery

2020 ◽  
Vol 13 (1) ◽  
pp. 441-446
Author(s):  
A Soltys ◽  
M Studnicki ◽  
G Zawadzki ◽  
M Aleksandrowicz-Trzcinska
Keyword(s):  
Salicylic Acid ◽  
Oxalic Acid ◽  
Scots Pine ◽  
Forest Nursery ◽  
Damping Off

scholarly journals Effect of Chitosan on Disease Control and Growth of Scots Pine (Pinus sylvestris L.) in a Forest Nursery

Forests ◽  
2015 ◽  
Vol 6 (12) ◽  
pp. 3165-3176 ◽  
Author(s):  
Marta Aleksandrowicz-Trzcińska ◽  
Anna Bogusiewicz ◽  
Michał Szkop ◽  
Stanisław Drozdowski
Keyword(s):  
Pinus Sylvestris ◽  
Disease Control ◽  
Scots Pine ◽  
Forest Nursery

scholarly journals Characteristics and diversity of Rhizoctonia spp. population in soil of selected forest bare-root nurseries in Poland

2014 ◽  
Vol 1 (1) ◽  
pp. 279-290 ◽  
Author(s):  
Marta Bełka ◽  
Małgorzata Mańka
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Damping Off ◽  
Highly Pathogenic ◽  
Anastomosis Groups ◽  
Forest Nurseries ◽  
Bare Root

Fourty three <em>Rhizoctonia</em> isolates obtained from four forest nurseries situated in the Wielkopolska region (central-western Poland) has been proved as multinucleate (anamorph – <em>R. solani</em>). They represented four anastomosis groups (AG): AG1-IC, AG-5, AG4-HG2 and AG2-1. Three AGs were found in Jarocin nursery (AG-5, AG4-HG2 and AG2-1), two in Łopuchówko (AG-5 and AG4-HG2) and one in Konstantynowo (AG1-IC) and Pniewy (AG-5). All isolates were highly pathogenic to Scots pine (<em>Pinus sylvestris</em>) seedlings and pose a large damping-off threat to the seedlings in the nurseries with single AG and in those where more AGs exists.

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