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Acknowledgments

Landscape and Ecological Engineering : Volume 5, Issue 1, February 2009

Landscape and Ecological Engineering : Volume 4

Landscape and Ecological Engineering : Volume 3

Landscape and Ecological Engineering : Volume 2

Landscape and Ecological Engineering : Volume 1

Root–shoot communication of the seedlings of Japanese larch and a hybrid species grown in different soil-temperature regimes

Content Provider	Springer Nature Link
Author	Qu, L. Y. Kitaoka, S. Makoto, K. Kuromaru, M. Osaki, M. Sasa, K. Utsugi, H. Koike, T.
Copyright Year	2009
Abstract	We studied the effects of soil temperature (7, 15, and 25°C) on the growth and photosynthesis of seedlings of the Japanese larch (Larix kaempferi) and its hybrid larch (L. gmelinii × L. kaempferi) to simulate early stages of regeneration after disturbance. At a soil temperature of 7°C, the root length per unit root biomass, chlorophyll concentration, and photosynthetic nitrogen-use efficiency (PNUE) were markedly lower in the Japanese larch than in the hybrid larch, which may indicate that the hybrid larch is better at acquiring water and nutrients. At ambient temperatures of 17–25°C, the light-saturated photosynthesis rate (P $_{sat}$) of both seedlings grown at a soil temperature of 7°C was lower than at 15 or 25°C. By the 16th week, the needle area, root area, and biomass in seedlings of both types were lower at a soil temperature of 7°C than at soil temperatures of 15 or 25°C. At a soil temperature of 25°C, P $_{sat}$ and nitrogen uptake were lower in both larch species than at 15°C. The growth of the Japanese larch declined sharply from 15 to 25°C; however, the growth of the hybrid larch decreased only slightly from 15 to 25°C. We conclude that an increased soil temperature may retard larch growth in cold regions, especially in the case of the Japanese larch.
Starting Page	115
Ending Page	123
Page Count	9
File Format	PDF
ISSN	18601871
Journal	Landscape and Ecological Engineering
Volume Number	5
Issue Number	2
e-ISSN	1860188X
Language	English
Publisher	Springer Japan
Publisher Date	2009-06-12
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Japanese larch Hybrid larch F1 Photosynthesis Soil temperature Soluble sugar and starch Plant Ecology Landscape/Regional and Urban Planning Environmental Management Civil Engineering Nature Conservation Landscape Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Management, Monitoring, Policy and Law Nature and Landscape Conservation

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