摘要:

AbstractA new disease ofSalix dasyclada, caused by aXanthomonasspecies is described. Cultural and biochemical experiments suggest a close relationship of this organism toAplanobacter populi.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00588.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00589.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

AbstractA headspace pre‐concentration technique was used for GC‐MS analyses of volatile compounds from fresh and heat‐dried wood ofPinus silvestris. α‐Pinene and Δ3‐carene dominated in the gas phase above both the fresh and heated wood. Low molecular aldehydes and ketones not present above the fresh wood were identified from the

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00590.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

AbstractFomes annosus (Fr.) Cke. and other decay fungi in a Douglas fir stand, Pseudotsuga menziesii (Mirb.) Franco.40% of the trees in a 40 years oldPseudotsuga menziesiistand showed butt rot. 85 trees were analysed for decay fungi.Fomes annosus, the most frequent fungus, also invaded the sap wood. Factors of the soil favourable to the rot and the possibility of transmission of the most frequent decay fungus,Fomes annosus, from (a) neighbouring spruce stands, (b) from the roots of Scots pine from the previous crop arc discussed.Caniophora puteanawas isolated from about 10% of the butt rots. The importance ofCalocera viscosawhich grew out of the central decay of twelve trees as a decay fungus is still under investigation.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00591.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

AbstractScleroderris canker has recently killed several thousand hectares of large red and Scotch pine trees in northern New York State. The disease pattern indicates that a new more virulent strain ofS. lagerbergiiis now present in North America.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00592.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00593.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY

摘要:

Books reviwed in this article:Heitefuss, R.; Williams, P. H. (ed.):Physiological Plant PathologyGerlach, D.:Botanische Mikrotechnik.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1977.tb00595.x

出版商:Blackwell Publishing Ltd    

年代:1977

数据来源: WILEY