Changes in weed community infesting common bean crop
Piotr Chmielowiec*, Andrzej Borowy**
**PlantiCo Horticultural Breeding and Seed Company
**Strugi, 96-516 Szymanów, Poland
**Department of Vegetable Crops and Medicinal Plants
**Faculty of Horticulture, Agricultural University in Lublin
**St. Leszczyńskiego 58, 20-068 Lublin, Poland
In three-year field experiment common bean (Phaseolus vulgaris L.) ‘Bona’ was cultivated for
harvest of green pods and dry seeds. Weed species, their growth stages, number
and fresh weight were determined every two weeks starting from the third week
after sowing till harvest of beans. 38 weed species, mainly annual
dicotyledonous were found and Amaranthus retroflexus, Chenopodium
album, Echinochloa crus-galli and Galinsoga parviflora
dominated in the experiment. Majority of weeds emerged during the first three
weeks after sowing, some of them germinated in two following weeks and then
their number decreased gradually. Fresh weight of weeds increased rapidly from
the third till fifth - seventh week and then much slower during the next few
weeks and finally it decreased as a result of decaying of some weed species.
All annual weeds attained fruiting stage and some species finished their
vegetation till time of harvest of bean seeds.
Chmielowiec P., Borowy A., 2005. Changes in weed community infesting common bean crop. Folia Horticulturae 17/1: 3-10.