Flowering of white mustard (Sinapis alba L.) under conditions of zinc excess
2002
Weryszko-Chmielewska, E. | Kostrzewska-Kuczumow, J. | Michonska, M.,Akademia Rolnicza, Lublin (Poland). Katedra Botaniki
The aim of the studies was to estimate the influence of excessive zinc rates on the formation of flowers and fruits of white mustard (Sinapis alba L.) Borowska cv. Also, stem anatomical traits and pollen grain morphology were compared. Three zinc rates were applied in a pot experiment: 0, 100 and 200 mg ZnSO4 per 1 kg of sand. Reduction of the number and size of flowers and fruits as well as weaker development of vascular bundles in stems was found at the excess of zinc. At higher zinc rate, reduction of pollen grain size occurred. Polymorphism of white mustard sporomorphs, as observed in the size, shape, number and size of apertures as well as exine thickness, was observed
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