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Title Transcription
アカマツ ト クロマツ ノ スミワケ ニ カンスル ケンキュウ 2 アカマツ クロマツ シンヨウ ノ タイカンセイ ニツイテ
Title Alternative (English)
Studies on the habitat segregation of Pinus densiflora and P. Thunbergii(2) : On the drought resistance of their needles
File
language
jpn
Author
Okimura, Yoshito
Description
This paper treats of the drought resistance of needles of Pinus densiflora and P. Thunbergii, and is a part of the writer's research on their habitat seregation.
To find their differences in the resistance to severe drought, needles were dried in desiccators in which <Na>_2S0_4 was placed at 30℃.
The results obtained are as follows :
1) The drying speed of needles of P. densiflora is faster than that of P. Thunbergii and the ratio is 5 : 3.
2) New needles dry faster than old.
3) When their needles lose water above a certain limit, they can not recover their nor mal water content.
4) Needles of P. densiflora reach this limit at double the speed of P. Thunbergii.
5) From these results, it may be concluded that P. Thunbergii is more adaptable to severe drought than P. densiflora.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
5
Start Page
56
End Page
60
ISSN
0370940X
Published Date
1971-12-15
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
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