Photosynthetic characteristics of perennial ryegrass and red fescue turf-grass cultivars

JM Van Huylenbroeck, P Lootens, E Van Bockstaele

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Uittreksel

The photosynthetic characteristics of eleven commercial perennial ryegrass (Lolium perenne L.) and nine red fescue (Festuca rubra L.) turf-grass cultivars were evaluated. In general, perennial ryegrass had a faster growth, with higher net photosynthesis and quantum efficiency and lower dark respiration (Rd) than red fescue. Among the perennial ryegrass cultivars two major groups were observed: the first one with slow growth, high light compensation point (I,) and low Rd and the second one with fast growth, low I, and high Rd. A Similar ranking was evident for the red fescue cultivars tested. The chewings fescue (F. rubra ssp. commutata) cultivars belonged to the first group, whereas the strong creeping red fescue (F. rubra ssp. rubra) cultivars were classified into the second group. Slender creeping red fescues (F. rubra ssp. trichophylla) had intermediate features. These variations make it possible to use some of these characteristics in breeding programmes for turf-grasses.
TaalEngels
TijdschriftGrass and Forage Science
Volume54
Exemplaarnummer3
Pagina's (van-tot)267-274
Aantal pagina's8
ISSN0142-5242
StatusGepubliceerd - 1999

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