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

Forests

Marta Aleksandrowicz-Trzcińska³  Anna Bogusiewicz³  Michał Szkop²  Stanisᐪw Drozdowski¹ 

[1] Department of Silviculture, Faculty of Forestry, Warsaw University of Life Sciences, Nowoursynowska 159, Warsaw 02-776, Poland; E-Mail:;Department of Biochemistry, Faculty of Agriculture and Biology, Warsaw University of Life Sciences, Nowoursynowska 159, Warsaw 02-776, Poland; E-Mail:;Department of Forest Protection and Ecology, Faculty of Forestry, Warsaw University of Life Sciences, Nowoursynowska 159, Warsaw 02-776, Poland; E-Mail:

关键词: Beta-chikol;    chitosan;    Pinus sylvestris;    salicylic acid;    growth stimulation;    disease control;   

DOI  :  10.3390/f6093165

来源: mdpi

【 摘 要 】

Chitosan has become a promising biological agent for disease control and plant growth promotion. The objective of this study was to assess the effects of chitosan, applied as an active ingredient of Beta-chikol (Poli-Farm, Łowicz, Poland), to control damping-off and Lophodermium needle cast on Scots pine seedlings growing in field conditions. Beta-chikol was used for seed treatment and as a foliar spray at recommended rates and concentrations. For each experimental variant (chitosan, fungicides, unprotected), inventories of seedlings were performed, after germination and again after six weeks. In the aboveground parts of seedlings, the concentration of endogenous salicylic acid was determined by HPLC. At the end of the growing season, seedling growth parameters were determined. Beta-chikol used as foliar spray limited infection by the damping-off fungi but was ineffective when used as a seed treatment. Lophodermium needle cast was not observed during the study period. After the application of Beta-chikol, the concentration of salicylic acid did not increase. The application of Beta-chikol enhanced all growth parameters under investigation. Our results indicate the possibility of using chitosan in the form of Beta-chikol to stimulate plant growth and protect pine seedlings against parasitic damping-off in forest nurseries.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.