The tomato plant (Lycopersicon esculentum Mill) was selected because
it is an important product that is in high demand; it is cultivated
in the northwest region of Mexico, is easy to commercialize and
is tolerable to waters with moderate or relatively elevated levels of
major ions such as chloride, sodium, potassium and magnesium
(Samperio-Ruiz, 2000;Magán et al., 2005, 2008). A relevant characteristic
of this species is that the temperature at which it grows in the environment
is compatible with those temperatures that correspond to the culture
waters of white shrimp during the months of May to November in
various regions of northwest Mexico (Páez-Osuna et al., 2007). The seed
were first stocked in polystyrene seed recipients with 200 cavities by utilizing
a substrate of peat–moss–perlite in a 1:1 (v:v) ratio
(Samperio-Ruiz, 2000). The tomato plants were transferred to pots
when the first pair of leads appeared (20–30 days). A total of 135 plants
were transplanted at a density of 4.9 plantsm−2. The separation between
the plantswas 0.30 mand between the adjacent rows was 1.0 m. Because
tomato plants grow upward, the plants were vertically supported by
nylon cord guides and were pruned andmanaged by following local practices.
The harvest of tomatoes was initiated when the first red coloration
of the fruit appeared, i.e., 13 weeks.
The tomato plant (Lycopersicon esculentum Mill) was selected because
it is an important product that is in high demand; it is cultivated
in the northwest region of Mexico, is easy to commercialize and
is tolerable to waters with moderate or relatively elevated levels of
major ions such as chloride, sodium, potassium and magnesium
(Samperio-Ruiz, 2000;Magán et al., 2005, 2008). A relevant characteristic
of this species is that the temperature at which it grows in the environment
is compatible with those temperatures that correspond to the culture
waters of white shrimp during the months of May to November in
various regions of northwest Mexico (Páez-Osuna et al., 2007). The seed
were first stocked in polystyrene seed recipients with 200 cavities by utilizing
a substrate of peat–moss–perlite in a 1:1 (v:v) ratio
(Samperio-Ruiz, 2000). The tomato plants were transferred to pots
when the first pair of leads appeared (20–30 days). A total of 135 plants
were transplanted at a density of 4.9 plantsm−2. The separation between
the plantswas 0.30 mand between the adjacent rows was 1.0 m. Because
tomato plants grow upward, the plants were vertically supported by
nylon cord guides and were pruned andmanaged by following local practices.
The harvest of tomatoes was initiated when the first red coloration
of the fruit appeared, i.e., 13 weeks.
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