Photosynthetic response to irradiance in Valeriana jatamansi Jones, a threatened understorey medicinal herb of Western Himalaya

Title:

Photosynthetic response to irradiance in Valeriana jatamansi Jones, a threatened understorey medicinal herb of Western Himalaya

Creator:

Vats, S. K., Pandey, S., and Nagar, P. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:3e5ff1aa-9b02-4a89-9598-178ddb566c38
uuid:3e5ff1aa-9b02-4a89-9598-178ddb566c38
issn:0300-3604
doi:10.1023/A:1024372623650

Subject:

acclimation, chlorophyll, photosynthetic photon flux density, and shade

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Net photosynthetic rate (PN) of Valeriana jatamansi plants, grown under nylon net shade or under different tree canopies, was saturated with photons at 1 000 μmol m-2 s-1 photosynthetic photon-flux-density (PPFD), whereas open-grown plants were able to photosynthesise even at higher PPFD, e.g. of 2 000 μmol m-2 s-1. Plants grown under net shade had higher total chlorophyll (Chl) content per unit area of leaf surface. However, Chl a/b ratio was maximal in open-grown plants, but remained unchanged in plants grown in nylon net shade and under different tree canopies. Sun-grown plants had thicker leaves (higher leaf mass per leaf area unit), higher wax content, and higher PN than shade grown plants. Thus V. jatamansi is able to acclimate to high PPFD and therefore this Himalayan species may be cultivated in open habitat to meet the ever-increasing industrial demand. and S. K. Vats, S. Pandey, P. K. Nagar.

Language:

Multiple languages

Rights:

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

Coverage:

625-628

Source:

Photosynthetica | 2002 Volume:40 | Number:4

Harvested from:

CDK

Metadata only:

false