The chromosome number of the swede,Brassica napus L.
The chromosome number of three varieties of swede was found to ben=19 and 2n=38. This agrees with the results of Nagai & Sasaoka (1930) and U (1935). The numbersn=18 and 2n=36, reported in three other papers, are most probably incorrect.
Volume 100, 2021
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