Causative agents of brown staining of leaves and root rot of tomatoes in conditions of the Republic of Moldova
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635.64:632.4:575.1(478) (1)
Garden plants. Gardening (694)
Plant damage, injuries. Plant diseases. Pests, organisms injurious to plants. Plant protection (968)
General genetics. General cytogenetics (426)
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GRIGORCEA, Sofia, LUPASHKU, Galina A., MIHNEA, Nadejda, ZAMORZAEVA-ORLEANSCAIA, Irina. Causative agents of brown staining of leaves and root rot of tomatoes in conditions of the Republic of Moldova. In: Oltenia - studii si comunicari stiintele naturii, 2016, nr. 1(32), pp. 45-49. ISSN 1454-6914.
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Oltenia - studii si comunicari stiintele naturii
Numărul 1(32) / 2016 / ISSN 1454-6914

Causative agents of brown staining of leaves and root rot of tomatoes in conditions of the Republic of Moldova

Agenţii cauzali ai pătării brune a frunzelor şi putrezirii rădăcinii la tomate în condiţiile Republicii Moldova.

CZU: 635.64:632.4:575.1(478)

Pag. 45-49

Grigorcea Sofia, Lupashku Galina A., Mihnea Nadejda, Zamorzaeva-Orleanscaia Irina
 
Institute of Genetics, Physiology and Plant Protection of the Moldovan Academy of Sciences
 
Disponibil în IBN: 13 noiembrie 2020


Rezumat

On the basis of macro- and microscopic characteristics of fungi isolated from tomato plants with symptoms of the disease, it was found that the aerial part of the plant was affected by fungi Alternaria – A. alternata, A. consortiale, and Phytophthora – P. infestans; the subterranean part (root) was attacked by fungi Fusarium – F. oxysporum var. orthoceras and F. solani.. The research of the grade of attack on the foliage of plants in the process of growth has demonstrated its increase from the beginning of fruiting to the mass fruit ripening. This indicates the intensification of the disease state. The correlation coefficients of the grade of attacks of blight and fusariosis were low (with one exception); it can suggest that the resistance of tomato to the causative agents is under the individual genetic contro

În baza caracteristicilor macro- şi microscopice ale fungilor izolaţi din plante de tomate cu simptome de boală, s-a constatat că partea aeriană a plantelor a fost afectată de fungii Alternaria – A. alternata, A. consortiale şi Phytophthora – P. infestans, iar partea subterană (rădăcina) a plantelor – de fungii Fusarium – F. oxysporum var. orthoceras şi F. solani. Cercetarea gradului de atac al aparatului foliar al plantelor în evoluţia creşterii – de la începutul fructificării până la coacerea în masă a fructelor a demonstrat creşterea acestuia, ceea ce denotă intensificarea stării de boală. Coeficientul de corelaţie a gradului de atac al alternariozei cu cel al fuzariozei a înregistrat (cu o singură excepţie) valori joase, ceea ce denotă că rezistenţa tomatelor la agenţii cauzali se află sub control genetic individual

Cuvinte-cheie
tomato, fungi, Alternaria spp., Phytophthora spp., Fusarium spp,

tomate, Fungi, Alternaria spp., Phytophthora spp., Fusarium spp

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