Natural shade systems as a phytoclimate modifier in tomato crop (Lycopersicon esculentum Mill)
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Abstract
natural shade system how phytoclimate is modified in the
flowering-fruiting phase , it allowing in the nonoptimal period
to improve the productivity of tomato crop. During three years,
the studies in the early and late periods were carried out;
treatments consisted of five space arrangement of two maize
rows on both sides of one, two, three, five and seven tomato
rows, whereas maize was seeded 30 days before transplanting
tomato and rows were north-south oriented, evaluating yield
and its components in tomato crop and some phytoclimate
factors as air temperature (oC) and percentage of radiation
reduction. Results showed that spatial arrangement of two
maize rows on both sides of three tomato rows where maize
was seeded 30 days before transplanting tomato to northsouth
oriented rows proved yield increments from 21.78 to
23 t.ha-1 in the proposed system and between 15. 61 and
18.15 t.ha-1 for tomato monoculture out of the optimal season,
as a result of system modification associated to radiation from
25 to 27 % and air temperature from 2.6 to 3.6oC.
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