Agro-morphological traits and some bacterial leaf pathogens susceptibility in local super tomato genotypes

OpenAlex İngilizce

This study aimed to characterize the morphological traits of Super tomato genotypes grown widely in Iğdır plain and to determine the reaction of the Super tomato genotype to bacterial diseases caused by Pseudomonas syringae pv. tomato (Pst) and Xanthomonas euvesicatoria pv. perforans (Xep). Super tomato genotypes were collected from 20 different regions in the harvest season in 2021-2022. Morphological and physiological measurements in the laboratory were taken on tomato genotypes to characterize plant traits. Also, pot experiments were carried out in a plant growth chamber to assess the reaction of Super tomato to infection by Pst and Xep. Data on plant morphology and growth were obtained, including measurements of plant heights (136.9-88.7 cm), root lengths (69.0-46.3 cm), stem diameters (2.17-1.52 cm), plant fresh weights (596-426 g), plant dry weights (127.6-94.0 g), root fresh weights (74.5 to 51.8 g), root dry weights (24.3-11.9 g), yield per plant (4717.3-2906.5 g), mean fruit weight (385.2-223.7 g), fruit length (55.5-50.3 mm), and mean fruit diameter (96.0-81.1 mm). In terms of the physiological properties of tomato fruits, the water-soluble dry matter content ranged from 4.55% to 4.11%, fruit juice pH from 4.69 to 4.43, titratable acidity from 3.16 to 2.93 mval 100 ml⁻¹, vitamin C content from 26.63 to 17.80 mg/100 g, lycopene content from 2951.1 to 2629.5 ng/µl, and β-carotene content from 272.55 to 228.82 ng/µl. Additionally, pot experiments demonstrated that the super tomato genotype exhibited moderate susceptibility to both Pst and Xep infections, with disease severity index (DSI) of 2.4 and 2.2, respectively.