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Yields of Individual and Combined Apomictic Strains of Kentucky Bluegrass (Poa pratensis L.) 1
Author(s) -
Hanson A. A.,
Garber R. J.,
Myers W. M.
Publication year - 1952
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1952.00021962004400030005x
Subject(s) - poa pratensis , geneticist , forage , biology , agronomy , poaceae , genetics
STRAINS of Kentucky bluegrass that have been selected for their superior performance in breeding programs are frequently disappointing when compared with commercial lots in strain trials (1, 2, 3). This may be true even though fertility and management are not limiting factors. There are at least two possible explanations for the failure of many selected strains to be more productive than commercial Kentucky bluegrass. Selections based on the estimated yields of preliminary plots might be ineffective because of the errors involved in visual observations. On the other hand, the mixture of types found in commercial lots could be superior in productive capacity to the single type represented by a selected strain. The results reported were obtained from an experiment designed to test this second possibility, i.e., whether yields of selected single strains are inferior to those of various combinations of these strains.