摘要:

AbstractThe production of rhizomorphs byArmillaria melleafrom stumps samples collected in East Anglia was studied: those of broad‐leaved trees produced greater yields than those of pines and, in the absence of poisoning, over a much longer period after felling. The ability ofA. melleato form rhizomorphs is often reduced after prolonged growth in pine tissues. The interaction ofA. melleaand other fungi is briefly considered. Some implications of these observations for forestry practice are discusse

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00363.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractThe Conductivity of Bark‐Extracts from Spruce, a Sensitive Indicator for Air Poilution. Bark of spruce is a useful and sensitive indicator for air pollution. The latter may be determined more precisely by electrolytic conductivity of bark extracts than by pH‐value or sulphate level of foliage. By an additional simple sulphate analysis of bark extracts the effects of SO2may be distinguished from those of certain components in d

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00364.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractCompounds are present in sapwood ofAbies balsamea(L.) Mill., triggering the formation of coremia byCeratocystis piceae(Münch) Bakshi. From several unsaturated fatty acids, linoleic acid is the most active coremia inducer

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00365.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractResistance test against parasitic fungi in forest trees in Sweden. Forest resistance research is carried out at the Department of Forest Botany and Pathology at the Royal College of Forestry in Stockholm in close contact with Forest Genetics research and is performed as a resistance test of plants from seed orchards and tested progenies. Biochemical research concerning the resistance mechanism and an electronmicroscopic investigation is carried out. At present the

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00366.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

AbstractInfection and Deterioration of Spruce Root Wood by Fornes annosus. The paper describes the mode of infection and subsequent deterioration of spruce root wood byFornes annosususing light and electronmicroscopic observations. In the secondary xylem the overall penetration of cell walls is effected by means of microhyphae which produce boreholes. The degradation of cell walls is initiated in the S2layer by diffusion of enzymes along the cellulose fibrils with subsequent hydrolysis of the amorphic incrusting substances.

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00367.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00368.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY

摘要:

Books reviwed in this article:Bakshi, B. K.; Singh, S.:Heart Rots in Trees (Pourritures du coeur des arbres)Barnett, H. L.; Hunter, B.:Illustrated Genera of Imperfect FungiPhytotoxins in Plant DiseasesProceedings of the NATO Advanced Study Institute, Pugnochiuso, Italy, June 1970. Edited by R. K. S. Wood, A. Ballioand A. GranitiEnvironmental Quality and Safety. Band 1: Global Aspects of Chemistry, Toxicology and Technology as Applied to the Environment. Hrsg. von F. Coulstonund F. Korte

ISSN:0300-1237    

DOI:10.1111/j.1439-0329.1972.tb00369.x

出版商:Blackwell Publishing Ltd    

年代:1972

数据来源: WILEY