Species composition of weeds in soybean Glycine max crops in the Belgorod region
Keywords:
soybean, weed flora, species activity, phytosanitary roleAbstract
The weed species were studied based on monitoring data in soybean crops in the Belgorod region. A total of 37 species of weed plants were found, most of which belong to the families of Compositae, Gramineae, and Cruciferae. The significance of each species in soybean crops was evaluated on its partial activity, which was determined based on both its occurrence and projective cover. Chenopodium album, Echinochloa crusgalli, Amaranthus retroflexus, Fallopia convolvulus and two Setaria species (S. viridis and S. pumila) demonstrated the highest scores of partial activities. Cirsium incanum, Persicaria hydropiper, Convolvulus arvensis, Solanum nigrum, Polygonum aviculare s. str., Xanthium strumarium were shown to have rather high scores of partial activities. About a third of species (13) are low-active: Cyclachaena xanthiifolia, Sonchus arvensis, Euphorbia virgata, Descurainia sophia, Stachys annua, Artemisia vulgaris, Tripleurospermum inodorum, Lactuca serriola, Consolida regalis, Artemisia absinthium, Sonchus asper, Centaurea cyanus, S. italica. Twelve weed species were rated as inactive in soybean crops of the Belgorod region. The results of the study may be used to develop a regional strategy for protecting soybean crops from weeds in the Belgorod region.
