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Breeding Systems in Annual Bluegrass, Poa annua L. 1
Author(s) -
Koshy T. K.
Publication year - 1969
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1969.0011183x000900010014x
Subject(s) - poa annua , biology , apomixis , agronomy , weed , panicle , arable land , poaceae , human fertilization , botany , agriculture , ecology , ploidy , biochemistry , gene
Evidence is presented which indicates that apomixis does not operate in annual bluegrass ( Poa annua L.) and that seed production and viability are good following either self‐ or cross‐fertilization. Annual bluegrass was shown to possess a remarkable ability to ripen viable seeds on panicles excised from the plant 1 or 2 days after pollination. This characteristic is considered to be the most important attribute in determining the success of annual bluegrass as a weed of arable land and of mown pastures and turf.