Effects of Potato Virus Y Strains on Local Tomato Genotype “Sazlıca”

Year 2019, Volume: 2 Issue: 3, 205 - 220, 28.12.2019

Musadik Abdullahi Ahmed Eminur Elçi

Abstract

The aim of the study was to investigate
incidence of PVY and the effect of PVY strains at different development stages
on yield and fruit quality of local tomato genotype “Sazlıca” which has
importance for local producers. To investigate PVY incidence, symptomatic
samples were collected from Sazlıca and 10 % of samples were found to be
positive by DAS-ELISA. For the evaluation of effects of PVY strains, seedlings
were mechanically inoculated with two different PVY strains in three
combinations (PVY^{NW, NTN, and NW+NTN})at four different
growth stages (7, 14, 21 and 28 days old). PVY susceptible commercial tomato
cultivar H2274 was used as control. Among the PVY strains, PVY^NW has
shown the maximum infection rates in the replications and varieties. For plant
age, 7 days old inoculated plants have displayed the maximum PVY infections as
expected, whereas, only one infection was observed in 28 days old plants. No
any symptoms were detected on fruits for all replications. In the fruit quality
and yield parameters, the highest fruit number, length, width, weight, and brix
value were observed on PVY^NW+NTN in 21 days plants. It can be
concluded that there are some PVY infections on Sazlıca tomatoes and among the
tested strains, PVY^NW strain is the most effective strain on yield
and fruit quality of Sazlıca tomatoes. The current study will be useful for the
disease management on tomato.

Keywords

tomato, ELISA, PVY strains, inoculation, fruit quality

Thanks

The current study covers the Master’s Thesis of Musadik Abdullahi Ahmed and we would like to thank Prof. Dr. Çiğdem Ulubaş Serçe (NOHU) for providing us virus source used in this study.

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