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vol. 8, nr. 2 (2006)
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Selected biological traits of flixweed (Descurainia Sophia (L.) Webb ex prantl
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Małgorzata Haliniarz
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Department of Tillage and Plant Cultivation, University of Agriculture, ul. Akademicka 13, 20-950 Lublin |
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vol. 8 (2006), nr. 2,
pp. 357-366
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abstract:
The aim of my paper was to broaden the knowledge about flixweed biology. The biology of Descurainia sophia was studied in a pot experiment, in 1998-2001. Natural types of soil and sowing dates, 5 terms in spring and 5 in autumn, were the experimental factors. The pots were buried in the ground in the university experimental field. Measurements were made in the full maturity phenological phase of Descurainia sophia. Particular plants of the species differed greatly in morphological features and air dry mass which depended on the time–limit of sowing and on soil types. The plants sowed in autumn were higher, produced more offshoots and siliques, and were characterized by higher air dry mass and seed production. Late sprouting negatively affected the growth and development of the studied weed. In the pot experiment Descurainia sophia grew the best on podstolic soil developed from loamy sand, where it was characterized by the best seed production and air dry mass.
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keywords:
Descurainia sophia, morphology, air dry mass, sowing dates, type of soil
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original in:
Polish
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