Influence of susceptible and tolerant varieties on population density of sugar beet cyst nematode (Heterodera schachtii)
2015
Bačić, Jasmina (Agricultural Extension Service Institute Tamiš, Pančevo (Serbia))
The influence of susceptible and tolerant sugar beet varieties on initial (Pi) and final (Pf) population density of sugar beet cyst nematode (Heterodera schachtii) was investigated in Serbian northern province of Vojvodina on naturally nematode infested field in Vojka, in district of Srem during the year 2013. The susceptible (Original) and tolerant (Fiorenza) varieties, recommended as standard in testing of new nematode sugar beet varieties by Serbian Plant Protection Directorate, were planted on experimental plots of field where sugar beet was grown in period of 2011-2012. The results of this field trial indicated that the average reproductive rate of nematodes (Pf/Pi) in soil was slightly lower for tolerant variety (3.9) than compared to susceptible one (4.1) on a heavily infested field. The standard tolerant variety gave significantly higher average yield (17t/ha) than susceptible variety (6.6 t/ha). These results may be used by growers from the infested regions of Vojvodina when choosing sugar beet varieties in order to reduce yield loss in their crops.
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