Control of winter forage pea diseases by pea-oat intercropping under field conditions
Smanjenje bolesti ozimog stočnog graška u združenoj setvi u polju
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Author
Zivanov, Dalibor
Jevtic, Radivoje
Tancic, Sonja
Vasiljevic, Sanja
Masirevic, Stevan
Keywords
Forage peaDiseases
Intercropping
Stočni grašak
bolesti
združena setva
Metadata
Show full item recordAbstract
A field experiment was conducted at the experimental field of the Institute of Field and
Vegetable Crops in Novi Sad to investigate the effect of forage winter pea and winter oat
intercropping on ascochyta blight and powdery mildew infections. Seeding rations of pea
and oat in Treatment 1 (50:50%) and Treatment 2 (75:25%, respectively) reduced ascochyta
leaf infection by 32.5% and 12.8%, and powdery mildew infection by 12.3% and 17.5%,
respectively, compared to pea monoculture used as a control (Treatment 3). The same
seeding rations in Treatment 1 and 2 reduced ascochyta blight on pea plants by 37.2% and
18.3%, respectively. However, there were no significant differences between the treatments
in reducing powdery mildew on plants.
The effects of different treatments on the average number of pods per plant, seed per
pod, shriveled pods and seed weight were analyzed using Spearman’s correlation coefficient.
Negative but not statistically significant effects on those measured parameters were registered
in Treatments 2 and 3, while Treatment 1 showed positive effects on all parameters except
shriveled pods.
According to all data obtained in this research, the intercropping mixture of pea and
oat at 50:50% seeding ratio had the best effect on the measured parameters while the
intercropping mixture of pea and oat at 75:25% seeding ratio had low to moderate effect in
comparison with pea monocrop. Poljski ogled je postavljen na oglednom polju Instituta za ratarstvo i povrtarstvo u
Novom Sadu kako bi se istražio uticaj smeše ozimog stočnog graška i ozimog ovsa na pojavu
antraknoze i pepelnice. Smeše graška i ovsa u Tretmanu 1 (50:50%) i Tretmanu 2 (75:25%)
smanjile su antraknozu lista za 32.5% i 12.8%, a pepelnicu za 12.3% i 17.5% u odnosu na
monokulturu graška, koja je uzeta za kontrolu (Tretman 3). Navedene smeše u Tretmanima
1 i 2 su smanjile pojavu antraknoze celih biljaka za 37.2% i 18.3%. Međutim, između tretmana
nije uočena značajnija razlika u pojavi pepelnice na celoj biljci graška.
Uticaj tretmana na prosečan broj mahuna po biljci, šturih mahuna po biljci, zrna po
mahuni i mase semena analizirani su Spearman-ovim koeficijentom korelacije. Negativne ali
ne statistički značajne korelacije sa merenim parametrima su registrovane u Tretmanima 2 i
3, dok je Tretman 1 imao pozitivan efekat na merene parametre sa izuzetkom šturih mahuna.
Prema dobijenim rezultatima u sprovedenom istraživanju, združena setva ozimog stočnog
graška i ozimog ovsa u smeši 50:50% je imala najbolji efekat na istraživane parametre dok
je združeni usev graška i ovsa u smeši 75:25% imao slab do srednji uticaj u poređenju sa
kontrolom, odnosno monokulturom graška.