, Volume 22, Issue 3, pp 613–614

Haploidy in Brassica nigraKoch


  • Shyam Prakash
    • Cummings LaboratoryIndian Agricultural Research Institute

DOI: 10.1007/BF00036663

Cite this article as:
Prakash, S. Euphytica (1973) 22: 613. doi:10.1007/BF00036663


Meiotic behaviour of haploid plants of Brassica nigra which arose parthenogenetically amongst the progeny of B. nigra × B. campestris, is described. The presence of two bivalents and s-s associations suggests the basic chromosome number w as six and the present x=8 number arose through the duplication of two of the original chromosomes.

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© H. Veenman en zonen b.v., Wageningen 1973