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Glucosinolates in seed of rape and turnip rape as affected by variety and environment
Author(s) -
Josefsson E.,
Appelqvist L.Å.
Publication year - 1968
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740191004
Subject(s) - glucosinolate , brassica , biology , agronomy , botany , horticulture
Seed meals of winter and summer types of varieties of Brassica napus and B. campestris , grown at different localities and in different years, have been analysed for content of glucosinolates which produce oxazolidinethiones and volatile isothiocyanates upon enzymic hydrolysis. Considerable differences existed in amounts of glucosinolates between species and between winter and summer types of the same species. Varietal differences were relatively small in most of the material studied. Samples of the Polish summer rape variety Bronowski and selections from this variety, however, exhibited very low glucosinolate contents; this is probably genetically determined. Environmental variation generally amounted to ±15% of the average value. Under certain environments, however, 65% lower values than average were obtained. Lack of sulphur in the growth medium of soil‐free cultures resulted in seeds low in glucosinolates. In practical farming low glucosinolate content has been found in rape seed as a result of low sulphate content in the soil.