sodininkystė ir daržininkystė 25(4)

B. Fodder cultivars / Paðariniø þirniø veislës
‘Brylant’
‘Wenus’
Seed dressing chemicals
Sëklø apdorojimas cheminiais
preparatais
Ascochyta
Fusarium
Uromyces
pisi
Diseases / Ligos
Erysiphe
pisi
Askochytoza
Fuzarioza
Uromyces
pisi
Erysiphe
pisi
Mean
Vidurkis
No seed dressing
chemicals
Sëklos neapdorotos
4.1 5.0 3.0 3.0 5.0 4.3 3.0 3.0 3.8
Funaben T 1.0 1.0 0 1.0 1.0 0.6 0 0 0.6
Sarfun T 1.2 0.5 0 1.0 1.4 1.0 0 0 0.6
Gaucho FS 1.5 1.0 0 1.3 1.2 1.3 0 0 0.8
Super Homai 1.0 0 0 0 0.5 0.7 0 0 0.3
Mean / Vidurkis 1.8 1.5 0.6 1.3 1.8 1.7 0.6 0.6
LSD (p = 0.05) for: seed dressing chemicals – n.s.; cultivar – n.s.; interaction of seed dressing
chemicals and cultivar – n.s. (not significant differences) / R 05
: ryðys tarp beicø, tarp veisliø, tarp
beicø ir veisliø sàveikos neesminis
The highest intensity of diseases and pests was recorded in the first year of
investigation (2004). According to the phytopathological evaluation, the harmfulness
threshold was exceeded in the control objects in every year of the investigation,
and the intensification of the occurrence of pests amounted to over 50%. On the
other hand, in the chemically protected objects the degree of injury was relatively
low apart from edible cultivars (‘Wenus’, ‘Brylant’), which were more exposed to
injury by Laspeyresia nigricana and Sitona lineatus than fodder cultivars. This fact
could also be observed in the control objects (Table 1 and 2).
The application of seed dressings protected plants efficiently not only in the
first weeks of growth and development but also during the whole period of vegetation
and effectively contributed to a larger number of pods in a fruit-bearing node
and thus on a plant.
Positive results were also obtained by applying herbicides, which had a positive
effect on the growth and development of plants and the number of pods per plant.
Research has shown that the largest number of pods per fruit-bearing node and the
whole plant was recorded in the objects were Basagran and Afalon herbicides were
used. Herbicides reduced the development of weeds effectively as they were not
recorded in any of the pea cultivars after the emergence. On the other hand, a repeated
weed classification before harvest showed that the highest density of weeds in
all pea cultivars occurred in the control objects without herbicides and was on average
13 times higher in comparison with the objects protected with herbicides (Tables
3 and 4).
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