تأثير موعد العدوى بفيروس موازييك الخيار في ارتفاع النبات و مواصفات ثمار نباتات الفليفلة في الزارعة الحقلية في محافظة اللاذقية، سورية

الملخص EN

This study was conducted in the village of Almetrucah located at the southern coastal plain of Lattakia city during 2014, to evaluate the effect of Cucumber mosaic virus on the growth and development of two pepper cultivars, hybrid ESTAR F1 H (sweet pepper) and Demer (hot pepper).

Plants were mechanically inoculated at three different stages; pre-flowering, flowering and post-flowering, as compared to a non-inoculated control.

Symptoms of Cucumber mosaic virus infection appeared in sweet hybrid four days earlier than its appearance on inoculated hot cultivar.

Main symptoms produced were leaf crinkle, leaf deformation, yellow patches and plant stunting.

Inoculated plants showed reduction in stem length, number of fruits, fruits length and yield.

Plants inoculated at the pre-flowering stage were more affected by the virus in both varieties.

Stem length per plant of ESTAR F1 H hybrid were 36 cm/plant when inoculated at the pre-flowering stage compared with 49.2 cm/plant in the control treatment.

15 fruits/plant weighing 700.8 g were produced when plants were inoculated at pre-flowering stage compared with 27 fruits/plant weighing 1267.5 g in ESTAR F1 H hybrid non-inoculated control.

Results obtained with Demer cultivar followed the same trend.

The effect of virus infection on pepper plants was less when virus inoculation was done later during flowering or post-flowering stage, and differences were significant between inoculated and non-inoculated plants in both cultivars.