Prevention and control of nematodes and soil borne diseases by grafting peppers

M. Bogoescu, D. Iorga, M. Doltu
Soil borne pathogens and nematodes are very destructive in vegetables crops and one of the most limiting factors to farmer's income. In field production, crop rotation is important to prevent infestation with diseases and pests. In Romania, there are 1,480 ha of protected cultivation under glass (420 ha in heated and 960 ha in unheated greenhouses), as well as more than 5,000 ha under plastic. However, this is rarely practiced in greenhouses, which allows soil borne pathogens and pests to accumulate, progressively reducing crop yields. Methyl bromide was the most effective fumigant for controlling nematodes, pathogens and weeds. But, adoption of the Montreal Protocol ended the use of methyl bromide in Romania in 2005. In the last 14 years non-chemical alternatives suitable in Romania have been identified at Horting Institute. Grafting cultivars with high quality and productivity on rootstocks that are resistant to the soil pests and diseases is a method known for some time, but which was improved and quickly spread in the last years. The objective of the researches was to evaluate the performance of the peppers grafting on the some rootstocks in greenhouse conditions. Data obtained in the combinations scion/rootstock were compared with data recorded from peppers not grafted. The incidence and severity of nematodes and soil-borne disease, marketable yield and fruits quality were evaluated. Grafting was found to significantly reduce the incidence of nematodes, soil-borne disease respectively increased marketable yield and peppers quality.
Bogoescu, M., Iorga, D. and Doltu, M. (2021). Prevention and control of nematodes and soil borne diseases by grafting peppers. Acta Hortic. 1326, 271-278
DOI: 10.17660/ActaHortic.2021.1326.36
attack frequency, rootstocks, scion, root index, quality, marketable yield

Acta Horticulturae