Seed quality of sugar beet varieties reproduced in various agroecological conditions
Abstract
Sugar beet seed quality became of great importance after monogerm varieties have been developed and introduced on industrial scale enabling the mechanization of this crop. In Western Europe seed are drilled in distance of 18–20 cm within the row. In Poland about 95% of the acreage is drilled in similar way. Seeds should meet certain requirements, they should have high laboratory germination and high field emergence to provide about 90.000 plants/ha. Climatic conditions in Poland (temperatures and rainfall distributions) have not been too favourable for a high quality seed production. The aim of the study was to compare seed quality of three sugar beet varieties reproduced in three sites in Poland and in three South European countries. Seed quality was assessed on the basis of laboratory germination and field emergence. It has been shown that seeds of all varieties reproduced in Italy, France and Greece exceeded those reproduced in Poland in respect of the laboratory, germination and field emergence with the exception of one site in Poland, viz. Elbląg. Seed quality produced at this site was comparable with those from the above mentioned countries.
Keywords:
field emergence, laboratory germination, seed quality, sugar beetReferences
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