HERBOLOGIA - anubih

B. Konstantinović et al.
Effect of the herbicide imazethapyr to shooting of plants is given in
Graph 1. Percentage of emerged plants from the site Krivaja was the highest.
visina stabla (mm)
stem height (mm)
35
30
25
20
15
10
5
0
0 0.04 0.08 0.1 0.15 0.2 0.4
kg a.m. imazetapir/l
kg a.i. imazethapyr/l
Krivaja
Kikinda
Bečej
Ruderalno
staniste/ruderal site
Fig. 5. Effect of the herbicide imazethapyr to the height Amaranthus
retroflexus L. stems.
Values of the studied parameters of Amaranthus retroflexus L.
biotype plants from locality Krivaja showed statistical significant difference
(p< 0.05) in regard to the susceptible standard and other studied localities.
Between biotypes from localities Kikinda and Becej there were no
statistically significant differences, nor there were differences in regard to the
susceptible standard (Graph 4).
Resistance level based upon foliage fresh weight was determined
according to the scale by Moss et al (1999) that imply several possible
resistance levels of the studied population (Table 2).
Tab. 2. Resistance level of the studied populations of Amaranthus
retroflexus L. determined according to the scale by Moss, based upon
the fresh weight.
Locality Resistance level
Krivaja 4*
Kikinda 1*
Bečej
S
S - osetljivost na primenjeni herbicid/susceptibility to the applied herbicide
1* – rana indikacija rezistentnosti, mogućnost da je došlo do redukcije delovanja
herbicida/early indication of the resistance, suspected herbicide reduction
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