Hala Al-alagouria(1) Imad Ismail(1)⁎ Badea Samra(2) and Fahd Soheoni(3)
(1). Department of plant protection, Faculty of Agriculture, Tishreen university, Lattakia, Syria.
(2). Department of Horticulture, Faculty of Agriculture, Tishreen university, Lattakia, Syria.
(3). Faculty of Second Agriculture, Aleppo university, Idlep. Syria.
(*Corresponding author: Dr. Imad Ismail. E-mail: imad.ismail@tishreen.edu,sy)
Received: 17/05/2020 Accepted: 22/06/2020
Abstract
The field experiment was conducted at an Al-Muturki village in Lattakia Governorate during 2019/2020 growing season to study the effect Cucumber mosaic virus (CMV) infection on the lighter pigments of four hybrids of pepper plants Taline F1, Amani F1, Harek F1 and Marvilo F1 at three times after viral infection 15, 30, 45 days. The experiment was carried out using the randomized complete block design with 8 treatments and 8 replicates per treatment. The results showed that, the viral infection affected the light pigments (chlorophyll A, chlorophyll B, total chlorophyll and carotenoids) after 15 days of infection with the virus. The highest effect of the viral infection was 30 days after infection, Where the values of light pigments of the hybrids of infected peppers decreased by significant differences compared to control plants. As for 45 days after infection with the virus, the effect of the viral infection decreased with the age of the plant. On the three dates, the decrease in the values of chlorophyll A was higher than the decrease in the values of chlorophyll B and carotenoids, the decrease in the values of chlorophyll B was higher than the decrease in the values of carotenoids, and the decrease in the values of the light pigments led to a decrease in photosynthesis.
Key word: Pepper, Cucumber mosaic virus, Hybrids, Photosynthesis.
Full paper in Arabic: PDF