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SHADE‐INDUCED DAMPING‐OFF IN CONIFER SEEDLINGS
Author(s) -
TAHER M. M.,
COOKE R. C.
Publication year - 1975
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1975.tb01421.x
Subject(s) - damping off , pinus contorta , pinus <genus> , pythium , biology , botany , range (aeronautics) , jack pine , horticulture , seedling , materials science , composite material
SUMMARY The mortality of seedlings of Pinus sylvestris, P. contorta, Picea sitchensis and P. exceha grown in natural soil under a range of light intensities was recorded over a 90‐day period. Low light intensities favoured damping‐off by soil‐borne necrotrophic fungi, principally species of Fusarium and Pythium , but aseptically‐grown seedlings survived a similar 90‐day period at these low intensities. The two Pinus species were more susceptible to damping‐off than the Picea species under all light treatments used but this difference was most marked at low light intensities. The influence of low‐light regimes on host‐necrotroph interactions is discussed.