Selectivity of Some Herbicides to Cocksfoot (Dactylis glomerata L.), Grown for Seed Production
Selektivnost nekih herbicida prema ježevici (Dactylis glomerata L.) gajenoj za proizvodnju semena
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Author
Dimitrova, Tsvetanka
Katova, Aneliya
Keywords
DactylisSeed
Herbicides
Pesticide selectivity
seme
herbicidi
selektivnost pesticida
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Show full item recordAbstract
The study was conducted to determine selectivity of some herbicides to cocksfoot
(Dactylis glomerata L.), and their influence on the seed production, during the years 2008-
2010. The trial was set on the experimental field of the Institute of Forage Crops – Pleven, on
slightly leached chernozem. As a result of the research the following was found: herbicides
Arat (500 g/l dicamba + 250 g/l tritosulfuron) at the dose of 100 ml/ha, Korida 75 VDG (750
g/kg tribenuron-methyl) – 15 g/ha and Cambio SL (320 g/l bentazon + 90 g/l dicamba) –
1250 ml/ha and Grasp 25SK (250 g/l tralkoxyidim) + Atplus at rate of 1000 + 1000 ml/ha had
high selectivity to cocksfoot, applied at 2-4 leaf stage during establishing year of the stand,
and until the stage of the beginning of shooting up in seed production year.
Herbicide Topik 080EK (80 g/l clodinofop – propargyl + antidote) at rate of 300 ml/ha,
showed phytotoxic effect to D. glomerata and caused the reduction of seed and dry biomass
productivity. U periodu 2008-2010. godine ispitivana je selektivnost nekih herbicida prema gajenoj
ježevici (Dactylis glomerata L.) i njihov uticaj na produkciju semena. Ogled je postavljen na
eksperimentalnim površinama Institute of Forage Crops, Plovdiv, na blago ispranom černozemu.
Na osnovu izvedenih istraživanja konstatovano je sledeće: herbicidi Arat (550 g/l dikamba
+ 250 g/l tritosulfuron) primenjen u količini 100 ml/ha, Korida 75 VDG (750 g/kg tribenuron-
metil) – 15 g/ha, Cambio SL (320 g/l bentazon + 90 g/l dikamba) – 1250 ml/ha i
Grasp 25SK (250 g/l tralkoksidim) + Atplus u količini 1000 + 1000 ml/ha, primenjeni u fazi 2-4
lista u godini zasnivanja ježevice i do početka vlatanja u godini proizvodnje semena, pokazali
su visok stepen selektivnosti prema ježevici.
Herbicid Topik 080EK (80 g/l klodinofop-propargil + antidot) u količini primene 300 ml/
ha, izazvao je fototoksične efekte na D. glomerata koji su se odrazili na smanjenu produkciju
semena i nižu produktivnost suve biomase.