Assessing shade stress in leaves of turf-type tall fescue (Festuca arundinacea Schreb.)

Title:

Assessing shade stress in leaves of turf-type tall fescue (Festuca arundinacea Schreb.)

Creator:

He, Q. and Li, D.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:aee861cd-e140-4fb4-835c-33ea40e2837a
uuid:aee861cd-e140-4fb4-835c-33ea40e2837a
doi:10.32615/ps.2021.037

Subject:

lawn, low light, photosynthesis, senescence, and vegetation index

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

Shade treatment was applied to tall fescue with 30% full light. The results showed that shade increased chlorophyll (Chl) content per unit leaf mass, decreased the Chl a/b ratio in the mature leaves, and decreased effective quantum yield based on Chl fluorescence compared to the full light treatment. Shade stress did not cause increased contents of malondiadehyde at the early stages of leaf development. However, normalized vegetation indices were able to detect shade stress. Chloroplasts in the shaded leaves are arranged tightly against the periclinal cell wall and are in a spindle shape. There were no differences in the number of grana per chloroplast or grana size (thylakoids per granum) between shade and full light treatment. In conclusion, tall fescue leaves showed unique ultrastructure changes. Turfgrass managers could use vegetation indices developed from the leaf light reflection spectrum as an effective tool to assess shade stress levels and make management decisions.

Language:

Multiple languages

Rights:

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

Coverage:

478-485

Source:

Photosynthetica | 2021 Volume:59 | Number:4

Harvested from:

CDK

Metadata only:

false