Tomato subsequent to potato, tomato is the second

Tomato
(Lysopersicon Esculentum L.) is a flavorful; typically fruit the same as well
as vegetable. subsequent to potato, tomato is the second most consumed
vegetable in the whole world, consumed both as raw and transformed product.It
is an excellent source of many nutrients and secondary metabolites that are
important for human health: miner matter, vitamin C and E, B-carotene lycopene,
flavonoids, organic acids, Phenolics and chlorophyll (Giovanelle and Paradise,
2002)

It is
also widely used by the food industries as a raw material for the production of
derived products such as purees and ketchup. Tomato is the most common
vegetable in the Mediterranean diet, a diet known to be beneficial for health,
especially with regard to the development of chronic degenerative diseases
(Leonardi et al., 2000)

Tomato
fruit quality has been assessed by the content of chemical compounds such as
dry matter, acidity, single, sugar, citric and other organic acids and volatile
compounds (Thybo et al., 2006)

Extensive
research has revealed that the effects of magnetic treatments depend not only
on the magnetic field strength and exposure period, but also on the
physiological condition of variety involved and on the reigning environmental
conditions (Gutzeit, 2001)

              At present it is assumed that
seeds treated by thy magnetic stimulation reveal higher activity of enzymes
which control some particular stages of seeds germination (Aksyonov et al.,
2000)

De Souza
et al., (2006), investigated the
effects of pre-sowing magnetic treatment on growth and yield of tomato (cv
Campbell-28) under field conditions. In the vegetation stage the treatments led
to a significant increase in leaf area, leaf dry weight and specific leaf area
(SLA) per plant. Also, the leaf, stem and root relative growth rates of plants
derive from magnetically treated seeds were greater than those shown by the
control plants. In the generative stage, leaf area per plant and relative
growth rates of fruits from plants from magnetically exposed seeds were greater
than those of control plant fruits. At fruit maturity stage, all magnetic
treatments increased significantly; the main fruit weight, the fruit yield per
plant, the fruit yield per area and the equatorial diameter of fruits in
comparison with the controls. At the end of the experiment, the total matter
was significantly higher for plants from magnetically treated seeds than that
of controls. A significant delay in the appearance of the symptoms of
germinivirus and early blight and a reduced infection rate of early blight were
observed in the plants from exposed seeds to MFs. Pre-sowing magnetic
treatments would enhance the growth and yield of tomato crop.

The
objective of the present study is to determine the effects of pre-sowing
magnetic treatments on tomato plant growth during nursery, vegetative and
generative stages and on the final yield. Certain tests shall be applied to
determine biochemical parameters.