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COMPETITION BETWEEN ESTABLISHED AND NEWLY SOWN GRASS SPECIES
Author(s) -
King J.
Publication year - 1971
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1971.tb00668.x
Subject(s) - tiller (botany) , biology , competition (biology) , pasture , sowing , agronomy , dominance (genetics) , festuca rubra , festuca , lolium perenne , lolium , nutrient , poaceae , ecology , biochemistry , gene
The nature of competition between a grass species either invading or introduced hy sowing into an established grass sward and the estahlished sward was examined by using a divided‐pot tecbnique. The species studied were Lolium perenrte S23 and Festuca rubra SS9, grown at two levels of N and P. Data are given for DM yield, tiller number, species ratio and uptake of N and P. The results show that competition for nutrients was a dominant factor and anything which affected this, such as prior establishment of one species, had an important effect on the success of the introduced species which amounted, under some conditions, to complete inhibition of growth of the latter. The data throw some light on the means whereby dominance is maintained in a pasture community.