Seasonal changes in the photosynthetic capacity of cones on a larch (Larix kaempferi) canopy

Title:

Seasonal changes in the photosynthetic capacity of cones on a larch (Larix kaempferi) canopy

Creator:

Wang, W.-J., Watanabe, Y., Endo, I., Kitaoka, S., and Koike, T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:ca85cd8a-1c47-4752-8135-e3aaeab59aa6
uuid:ca85cd8a-1c47-4752-8135-e3aaeab59aa6
issn:0300-3604
doi:10.1007/s11099-006-0034-5

Subject:

chlorophyll, re-fix ratio, respiration, seasonal changes, and stomata

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The seasonal changes of photosynthesis of cones of Japanese larch (Larix kaempferi Carr.) trees showed that gross photosynthetic rate of young cones (G) was 2-3 µmol m-2 s-1 at surface area unit and PG / RD (dark respiration of cones) peaked about 0.7 in the same period, indicating that 70 % of respiratory CO2 was re-fixed. With maturation, PG and PG / RD sharply decreased. Chlorophyll content in cones was 3-20 % of that in leaves, which made it a limiting factor for photosynthesis and its content was closely correlated with photosynthetic capacity. Although sunken and linearly arranged stomatal organs were found on the scale of young cones, differently from the significant regulation of leaf photosynthesis, these stomata tended to be non-functional since CO2 is not limiting factor for cone photosynthesis. Thus photosynthesis of larch cones is an additional contribution to their development. and W.-J. Wang ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

345-348

Source:

Photosynthetica | 2006 Volume:44 | Number:3

Harvested from:

CDK

Metadata only:

false