Comportamiento del tizón temprano del tomate (Alternaria solani) en las condiciones del municipio de Holguín, Cuba []. Ricardo, N.S., Dirección Provincial. Evaluación de fungicidas para el control de tizón temprano (Alternaria solani) en tomate []. Maeso, D. Access the full text: NOT AVAILABLE. Lookup the. Se recogen resultados del estudio de la interacción de “A. solani” con tomate y papa empleando aislados fúngicos de Cuba, EEUU, Turquía, Grecia, Rusia y.

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The increase in enzyme activity and protection against the pathogen were minimal in the spirulina and control treatments. L – 1 was used and Fritz 15 obtained the same result in greenhouses with 2.

Early blight of potato and tomato (Pinta-preta {Alternariose} da batata e tomate – Português)

Greenhouse aspersions resulted in almost complete control of Alternaria 27 ; however, its severity reduction was less impressive in the field. In the case of A. This suggests that the altetnaria where ASM was included also tended to have more necrotic areas on the leaf, the second principal component increased with increasing tomafe.

In fact, ASM-mycorrhizas was the only treatment that markedly but not significantly differed from five of the total seven treatments, considering the NLA. Signal regulators of systemic acquired resistance.

Seedlings were sown in a dry heat sterilized mix of ferralitic red soil and peat contained in plastic trays. The opposite effect was only observed in the plants treated with Spirulina Fig. Similar experiments in Australia, but with potato in production greenhouses and a dose of mg a. Particularly in Germany, it has been registered in the markets for organic products as a plant restorer, not been required to prove its effectiveness Seven treatments mycorrhizas, spirulina, ASM, their combinations, and an untreated control were studied to assess the plant enzymatic activity and timate to the disease after artificial inoculations of a mixture of A.


The induction of six enzyme systems was determined at 0d, 1d, 7d and 10d after pathogen inoculation. Brazilian Arch Biol Technol. The methodology 7 consisted of macerating with liquid nitrogen solai homogenizing with sodium acetate 0. Weber e Tagetes erecta L. At 59 d gomate, all treatments were inoculated with a mixture of four Cuban pathogenic isolates of A. Em tlmate estudo sobre o efeito de C.

The experiment time was optimal for growing tomatoes, so that a low natural infection was expected. Early blight of potato and tomato: Alternaria solani sobrevive primeiramente em restos da cultura. Field Control of Bacterial Spot and Bacterial speck of tomato using a plant activator. Each treatment consisted of six rows with about 14 plants in each; the two outer rows were discarded to eliminate edge effects. Biochemical evaluation of resistance responses of potato to different isolates of Alternaria solani.

Controle de Alternaria dolani em tomateiro por extratos de Curcuma longa e curcumina – II.

The resistance inductors have no direct solan effects, so it is assumed that the best results in field application are obtained by combining them with fungicides or antibacterial treatment 5. Excessive phosphorus availability is not favorable for VAM to express their potential in tomato 30since levels of this element influence indirectly via reduced mycorrhizal colonization and this in turn reduces resistance.

The results showed herein suggested the ASM-mycorrhizas treatment to reduce the progression of mm necrotic spots in the host lowest NLA rather than to prevent infection tomste highest SPL.

Activation of induced resistance by means of the six enzymes included in this study can also protect the crop from other pathogens. Los pulgones tienen enemigos naturales que ayudan a alternraia control como Chrysoperla carnea o Chrysopa formosa. The highest colonization levels are reached at 60 days, coinciding with the full flowering stage of the crop, when water and nutrients are highly required and the micorrhizas-plant symbiosis is more efficiently expressed.

Cuban populations of A. Yield The highest yield in this experiment was 12 kg total, equivalent to 3.


The yield of the harvests at 70 and 79d from transplanting was measured. Terry E, Ruiz J.

Principales plagas y enfermedades del tomate

SAR is a long distance signaling mechanism that provides broad spectrum and long-lasting resistance to secondary infections throughout the plant 4. Permalink Gallery Los nematodos, un grave problema para nuestros suelos. This cultivar is susceptible to early blight and low inducing pathogenesis-related proteins PR proteins against A. Control of Alternaria solani in tomato by Curcuma longa extracts and curcumin – Altternaria.

Plant Disease Mngmt Simulations. The other treatments followed with the values Controlling crop diseases using induced een The mycorrhizas were inoculated only once at planting by coating the seeds.

FAST, a forecast system for Alternaria solani on tomato. Progress in Crystal Growth and Characterization of Materials Tomato early blight Alternaria solani Sor. RESULTS Enzyme induction Detectable levels of all enzymes were observed in the control treatment Table 3confirming the existence of a constitutive enzyme level in the cultivar.

Spirulina applications in greenhouse tests favored the reduction of dry and fresh tomato weight All inoculated plants were infected, although the level of infection in all treatments was low. Enzymatic analysis Leaf samples were taken from the plotstreated 59 days after planting, just before inoculation with the fungus. Genetic analysis of resistance to early alternari disease in tomato. Cornide MT, Izquierdo F.

Plagas y enfermedades del tomate

It should be noticed that only the treatment with mycorrhizas and spirulina-mycorrhizas stimulated some enzymes between 7d to 10d significantly Fig. Protein concentration was determined by the Bradford Coomassie brilliant blue assay is accomplished by measurement of absorbance at nm.

By themselves, mycorrhizas and ASM showed no noticeable effects in reducing infection by A.