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Title Transcription
マツバノタマバエ ニヨル アカマツ シンヨウ ノ ソンショウ ニツイテ
Title Alternative
On the injury to needles of "Akamatsu"(Pinus densiflora Sieb, et. Zucc.) by Cecidomyia(Thecodiplosis) brachyntera Schwage
File
language
jpn
Author
Miura, Tadashi
Chikaki, Hideya
Description
This investigation was made, in 1954 into the needles of "Akamatsu" trees injuried by Cecidomyia (Thecodiplosis) Brachyntera Schwage to form a part of our projected researches on the damage done by the insects in Shimane Prefectur.
1) The needles, once parasitized by Cecidomyia (Thecodiplosis) Brachyntera Schwage, stop growing in length and thickness, thus the correlation coefficient between them being smaller.
And the central cylinders of injuned needles are also impeded to grow in width and thickness.
2) The parasitized needles have fewer resin ducts.
3) The relation between the volume of a gall and the number of the Parasites is corelational to a high degree.
4) The rate of injuried buds to normal was high at branches around the centre of the krone.
Journal Title
島根農科大学研究報告
Volume
3
Start Page
63
End Page
72
ISSN
05598311
Published Date
1955-05-30
NCID
AN00108241
Publisher
島根農科大学
Publisher Aalternative
The Shimane Agricultural College
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
Remark
A,Bを含む