Iuliana Mândru , Marcel Costache, Stelica Cristea
Full Text PDF | fungicides, pathogens, tomato, yield.
The research undertaken was aimed to identify the combinations of fungicides for the control of the complex of pathogenic agents which manifest themselves in tomato crops in the field. A monofactorial experiment was organized, placed in randomized blocks with five different experimental variants in four repetitions. Pontica tomato was used. During the growing season the treatments applied were correlated with the appearance and development of the attack of pathogens, depending on climatic factors. The appearance and development of attack are favored by the annual precipitation, humidity and temperature. The following pathogens have been identified and their degree of attack on the foliage: Pseudomonas tomato, Alternaria spp., Fulvia fulva, Phytophthora infestans, the degree of attack is 5.3% (variant 1), 6.8% (variants 2 and 3) and 8.2% (variant 4), compared to 49.5% in version of the untreated control fruits was identified Phytophthora parasitica, Alternaria spp and Colletotrichum coccodes. The highest yield 6.834 kg/m2 was recorded to variant 1, followed by variant 3 with 6.674 kg/m2 and variant 2 with 6.420 kg/m2 compared to the yield obtained from the untreated control variant 5.064 kg/m2. From the therapeutic modalities tested, variant 1 and 3 showed the most positive results in terms of production and efficiency.