PDF | Intraspecific groups among isolates of Alternaria solani from tomato and potato and from Brazil, China, Cuba, United States, Greece and Turkey, were. Seis clones de papa, seleccionados por su resistencia in vitro al filtrado de cultivo de Alternaria solani Sor. se evaluaron para determinar su respuesta de. Se recogen los resultados de las investigaciones realizadas sobre el tizón temprano en papa, Alternaria solani Sor. durante 20 campañas del cultivo.

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Alternaria solani

The opposite effect was only observed in the plants treated with Spirulina Fig. Experimental design and analysis.

The overall average was The potato is a dietary staple in nearly all temperate countries with annual production worldwide in of around million metric tonnes. Se estudiaron siete tratamientos: Do not work in the garden when it is wet after rain, morning dew or fog.

In fact, ASM-mycorrhizas was the only treatment that markedly but not significantly differed from five of the total seven treatments, considering the NLA. More like partially resistant. 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.

Similar experiments in Algernaria, but with potato in production greenhouses and a dose of mg a.



It should be noticed that only the treatment with mycorrhizas and spirulina-mycorrhizas stimulated some enzymes between 7d to 10d significantly Fig.

Variation in the optical density was determined for two minutes at 15 sec. Each treatment consisted of six rows with about 14 plants in each; the two outer rows were discarded to eliminate edge effects.

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 events highest SPL. Tomato early blight Alternaria solani Sor. Get out to the garden daily and observe for any changes. The other treatments followed with the values The yield of the harvests at altefnaria and 79d from transplanting was measured.

Cuban populations of A. Bacterial spot of pepper and tomato.

Zonificación de Alternaria solani en papa en la provincia de La Habana. [1998]

Audible Download Audio Books. Early blight lesions on tubers tend to be dry and are less prone to invasion by secondary organisms than lesions of other tuber rots. In the case of A. Spraying acibenzolar-S-methylol once at 55d after seeding showed promising results Fig.

Zonificación de Alternaria solani en papa en la provincia de La Habana.

Read the label for application. Phenylalanine ammonia lyase PAL: Controlling volunteers and weeds, such as nightshade and horsenettle which serve as alternative hosts for the disease, prior to planting the new crop will help to alternariia the risk of transmission of disease.


The content of enzymes increased soani time 1d to 10d Fig. The ASM showed itself to be effective in the greenhouse, sufficing a single application of the product to achieve protection in the field; however, ASM does not always provide alteenaria against pathogens 8. Infected fruit will frequently drop prematurely. The concentration of microalgae is altegnaria influential, in this case 1 g. These isolates show significantly reduced levels of sensitivity to the QoI fungicides Pasche and Gudmestad, Early blight is considered polycyclic with repeating cycles of new infection.

We are also grateful to anonymous reviewers for their suggestions on the manuscript. The methodology 7 consisted of macerating with liquid nitrogen and homogenizing with sodium acetate 0. Lesions generally appear quickly under warm, moist conditions on older foliage and are usually visible within days after infection.

Plants of the tomato cultivar HC were used.

A random block design with three replications and seven treatments per block was used. A long wet period is required for sporulation but it can also occur under conditions of alternating wet and dry periods.