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HARVESTING TETRAPLOID RYEGRASS FOR SEED
Author(s) -
Roberts H. M.
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.tb00634.x
Subject(s) - germination , ripening , biology , agronomy , moisture , ploidy , lolium , horticulture , poaceae , chemistry , biochemistry , organic chemistry , gene
Sequential harvests of two tetraploid ryegrasses have shown that the commercially critical level of 90% germination was attained early in the ripening process. For the greater part of the maturation period the moisture level was maintained at 60% as in diploid grasses, but the rate of moisture loss during the latter part of ripening proved to be slower than in diploids. The large seeds are more susceptible to mecbanical damage at harvest and therefore require lower drum speed.