Effects of inorganic nitrogen availability on the sporophytes of Acrostichum aureum L.

Title:

Effects of inorganic nitrogen availability on the sporophytes of Acrostichum aureum L.

Creator:

Pillai, R. S. and Ong, B.-L.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4ce5d8f1-b2f7-4b3f-bf0a-f3dba35ad9a2
uuid:4ce5d8f1-b2f7-4b3f-bf0a-f3dba35ad9a2
issn:0300-3604
doi:10.1023/A:1007055812264

Subject:

chlorophyll fluorescence, fern, fertilization, growth, and photosynthesis

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Plants grown at low irradiance were fertilized with 0, 60, and 600 g m-3 NH4NO3 once every fortnight. Plants treated with high N concentrations showed an increased growth, producing longer and broader fronds with larger areas, and were darker green in colour. Nitrogen also increased the content of chlorophyll (Chl) and carotenoids per leaf area unit. Different N treatments did not affect the photosynthetic efficiency of photosystem 2, as reflected by the high values of Chl fluorescence kinetics Fv/Fm, ranging between 0.81 to 0.84, and Fv/F0 of 4.30 to 5.10. An increase in photochemical quenching (qP), accompanied by a decrease in non-photochemical quenching (qN), was observed in sporophytes fertilized with increased concentrations of NH4NO3. Nitrogen availability allowed sporophytes of Acrostichum aureum to become more established under natural conditions. and R. S. Pillai, B.-L. Ong.

Language:

Multiple languages

Rights:

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

Coverage:

259-266

Source:

Photosynthetica | 1999 Volume:36 | Number:1-2

Harvested from:

CDK

Metadata only:

false