Long-term storage and seed source versus fungi communities on Pinus sylvestris seeds
A. Kowalczyk, M. Man´ka and M. Kacprzak.
Journal of Plant Pathology Volume 90 (2, Supplement) August 2008, Book of Abstract, 9th International Congress of Plant Pathology, August 24-29, 2008 Torino,Italy,. 507 pages.
2008
บทคัดย่อ
Long-term storage and seed source versus fungi communities on Pinus sylvestris seeds
Scots pine (Pinus sylvestris) is one of the main tree species inPolish forests (regenerated mainly artificially). Production ofhealthy seedlings from stored seeds is a priority but pathogenicfungi on seeds and seedlings contribute to losses in forest nurseryproduction. Thus, it is of utmost importance to produce clean,healthy seeds and store them free of pathogens. The effects of storagetime and location of stands from which seeds werecollected,on seed inhabiting-fungi were investigated. The number of fungalpathogens on seeds increased with storage time. The fungal communitiesvaried depending on storage time and seed source. After afew years their structure in seed lots depended more on storagetime than on seed source. With increasing storage time, the structureof fungal communities became more and more similar. Themethod of seed extraction from cones was of no importance to thestructure of the fungal communities. The most common seed lotinhabitingfungi in 2003-2006 were the following non-specificspecies/genera:Alternariaspp., Aspergillusspp., Cladosporium cladosporioides,Fusariumspp., Penicilliumspp., Sclerotinia sclerotiorum,Trichodermaspp., with prevalence of the following:S. sclerotiorum,C. cladosporioides, Aspergillusniger, Alternaria alternata,Fusarium solani, Penicillium communeandP. expansum.