Growth, photosynthesis and nitrogen content in Japanese beech (Fagus crenata Bl.) seedlings grown under five irradiances

Title:

Growth, photosynthesis and nitrogen content in Japanese beech (Fagus crenata Bl.) seedlings grown under five irradiances

Creator:

Liang, Naishen, Nagayama, M., Nakata, M., and Maruyama, K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:693c150c-7ae8-4e7b-8e75-5117ef5067f7
uuid:693c150c-7ae8-4e7b-8e75-5117ef5067f7
urnnbn:urn:nbn:cz:aba007-000fnv

Type:

model:internalpart and TEXT

Format:

print

Description:

Acclimation to irradiance was investigated in seedlings of Japanese beech {Fagus crenata Bl.) grown under one of five irradiance regimes for three years. Inadiance (/) regimes covered the range of environmental conditions which this species normally would experience in Japanese beech forests: exposed [22.1 mol(quantum) m‘2 d'*, matching mean daily irradiance of exposed canopies], partially shaded [8.8, 2.7 and 1.5 mol(quantum) d'*, respectively, comparable to various midcanopies], and deeply shaded [0.5 mol(quantum) nu^ d"', equivalent to forest floor], There were consistent strong relationships between irradiance, growth performance and net photosynthetic rate (P^) for this species. Greater growth performance and were achieved as / increased, with aboveground height growth increasing as rapidly as basal diameter growth. This tiend was also observed in the leaf specific mass and leaf nitrogen content. Exposed plants had higher saturation I for (> 1400 |amol m'^ s‘*) than partially shaded plants (1180, 1100 and 753 pmol m‘2 s'', respectively). Higher leaf conductance, leaf specific mass and leaf nitrogen content correlated positively with higher Nevertheless, the beech seedlings adapted to deep shade by producing more total chlorophyll and requiring lower compensation / (Qq) at lower growth irradiances. Seedlings of Japanese beech were very tolerant to shade but capable of acclimating to strong I. Thus / is an important factor influencing growth and photosynthetic capacity of Japanese beech.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

257-268 and 99-110

Source:

Photosynthetica | 1995 Volume:31 | Number:2

Harvested from:

CDK

Metadata only:

false