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THE APPRAISAL OF GRASS VARIETIES BY THE STUDY OF SPACED PLANTS, 1950–58
Author(s) -
Thomson J. R.,
Sutton W. G.
Publication year - 1962
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.1365-2494.1962.tb00314.x
Subject(s) - dactylis glomerata , lolium perenne , habit , biology , phleum , agronomy , botany , perennial plant , poaceae , psychology , psychotherapist
General conclusions are drawn from the study of spaced plants of 29 varieties of Lolium perenne , 23 of Dactylis glomerata and 26 of Phleum pratense . Highly significant correlations are established in each species between date of ear emergence and each of the characters, growth habit, stem length and aftermath shooting. The classification of varieties proposed on the basis of the earlier trials by the spaced‐plant method is reviewed and revision in certain respects is proposed. For each species the varieties are listed in order of ear emergence. New varieties tend to fill the gaps in such a sequence and in time there may be continuity from the earliest to the latest varieties. In such circumstances classification into clearly delineated groups would become impossible.