Selectivity of Some Herbicides to Standard Wheatgrass (Agropyron desertorum (Fisch.) Schultes) During Stand Establishment and Seed Production
Selektivnost nekih herbicida prema pirevini (Agropyron desertorum (Fisch.) Schultes) tokom zasnivanja useva i produkcije semena
View/ Open
Author
Katova, Aneliya
Dimitrova, Tsvetanka
Keywords
Agropyron desertorumHerbicides
Seeds
Dry biomass
herbicidi
semena
suva masa
Metadata
Show full item recordAbstract
A study was conducted in the experimental field of the Institute of Forage Crops –
Pleven on a slightly leached chernozem soil in 2011-2012 to determine the selectivity of
some herbicides to standard wheatgrass (Agropyron desertorum (Fisch.) Schultes) during
stand establishment and its seed production. The study had the following results: the herbicides
Kambio SL (320 g/l bentazone + 90 g/l dicamba) – 1250 ml/ha; Kalam (125 g/l tritosulfuron
+ 600 g/kg dicamba) – 200 g/ha; Lintur 70 WG (4.1% triasulfuron + 65.9% dicamba)
– 150 g/ha, and Axial 050ЕK (50 g/l pinoxaden) – 600 ml/ha showed high selectivity
to standard wheatgrass when applied at the stage of 3-4 leaves during the year of stand
establishment; the herbicides Imaspro (69 g/l fenoxaprop-P-ethyl+antidote) and Stelar (50
g/l topramezone + 160 g/l dicamba), each applied at the rate of 1000 ml/ha, caused phytotoxicity
(scores from 4 to 6), while Termidor (40 g/l nicosulfuron) – 1250 ml/ha completely
destroyed the crop (score 9); the herbicides Kambio SL; Kalam; Lintur 70WG and Axial 050ЕK
applied at the same doses at the stage from spring growth to the beginning of shooting
up in the seed production year had a high selectivity to standard wheatgrass and could be
applied in seed production stands without negative influence on seed productivity. The
herbicide Termidor was very phytotoxic (scores from 3 to 7) and prevented the formation
of generative stems. U Institutu za krmno bilje Pleven sprovedeno je istraživanje na blago izluženom tipu zemljišta
tokom 2011-2012. godine kako bi se utvrdila selektivnost nekih herbicida prema pirevini
(Agropyron desertorum (Fisch.) Schultes) tokom perioda zasnivanja useva i produkcije
semena. Zabeleženi su sledeći rezultati: herbicidi Kambio SL (320 g/l bentazon + 90 g/l dikamba)
– 1250 ml/ha; Kalam (125 g/l tritosulfuron + 600 g/kg dikamba) – 200 g/ha; Lintur 70
WG (4.1% triasulfuron + 65.9% dikamba) – 150 g/ha i Axial 050ЕK (50 g/l pinoksaden) – 600
ml/ha su pokazali visoku selektivnost prema pirevini u fazi 3-4 lista tokom godine zasnivanja
useva; herbicidi Imaspro (69 g/l fenoksaprop-P-etil+antidot) and Stelar (50 g/l topramezon
+ 160g/l dikamba) primenjeni u dozi 1000 ml/ha izazvali su fitotoksičnost (ocene od 4
do 6), dok je Termidor (40 g/l nikosulfuron) – 1250 ml/ha potpuno uništio usev (ocena 9);
herbicidi Kambio SL, Kalam, Lintur 70WG i Axial 050ЕK primenjeni u istoj dozi u fazi od prolećnog
nicanja do početka izbijanja izdanka u godini produkcije semena imali su visoku selektivnost
prema pirevini, tako da se mogu primenjivati u zasadima za produkciju semena
bez negativnog uticaja na produktivnost semena. Herbicid Termidor je pokazao veoma visoku
fitotoksičnost (ocene od 3 do 7) i sprečio je formiranje generativnih izdanaka.