Full TGIF Record # 9651
Item 1 of 1
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1986.tb01820.x/epdf
    Last checked: 10/02/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Hay, R. K. M.; Pedersen, K.
Author Affiliation:Botany Dept., West of Scotland Agricultural College, UK and Botanisk Institut, Agricultural University of Norway, As, Norway, respectively.
Title:Influence of long photoperiods on the growth of timothy (Phleum pratense L.) varieties from different latitudes in northern Europe
Source:Grass and Forage Science. Vol. 41, No. 4, December 1986, p. 311-317.
Publishing Information:Oxford, Blackwell Scientific Publications
Keywords:TIC Keywords: Photoperiod; Phleum pratense; Varieties
Abstract/Contents:"Plants of three varieties of Phleum pratense L. from different latitudes (cv. Engmo, 69 N; cv. S48, 52 N; Cv Motim, 52 N) were grown from the five-leaf stage at 12 C under continuous illumination or 8-h days at essentially identical daily inputs of radiant energy. The responses to daylength extension (increase in plant dry weight, plant height and leaf dimensions and reduction in the number of tillers per plant and in tissue dry matter content) were common to all three varieties and although the enhancement in plant dry weight and in leaf size was greater in the Engmo plants, this was principally the result of poorer growth and smaller leaf size in 8-h days. Marked differences between Engmo and the other varieties in the partitioning of dry matter within the plant were the consequence of differences in the rate of reproductive development. For example, compared with S48 and Motim, first spike emergence and 50% anthesis in the Engmo plants were delayed by 22 and 14 days, respectively, and 40% of the Engmo plants did not become reproductive even after 110 days of long-day treatment. Furthermore, by the time that 50% anthesis of the mainstem spike has been reached by the long-day plants of each variety, significant differences in tiller numbers and tiller fertility had developed between the varieties from high anbd lower latitudes. These findings and the results of previous studies of Poa pratensis, Dactylis glomerata and Bromus inermis are discussed in relations to the adaptation of high-latitude grasses to the Scandinavian environment."
Language:English
References:19
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hay, R. K. M., and K. Pedersen. 1986. Influence of long photoperiods on the growth of timothy (Phleum pratense L.) varieties from different latitudes in northern Europe. Grass Forage Sci. 41(4):p. 311-317.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=9651
If there are problems with this record, send us feedback about record 9651.
Choices for finding the above item:
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1986.tb01820.x/epdf
    Last checked: 10/02/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Find Item @ MSU
MSU catalog number: SB 197 .B7
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)