Journal
CIENCIA E AGROTECNOLOGIA
Volume 32, Issue 6, Pages 1767-1774Publisher
UNIV FEDERAL LAVRAS-UFLA
DOI: 10.1590/S1413-70542008000600014
Keywords
Pinus; biology; silicon; aphid giant conifer
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This research aimed to study the effect of silicon in biology and morphology of C. atlantica. The bioassay was carried out in environmental chamber (20 degrees C, 70% RH and 12 photophase) in a completely randomized design. Adult females were transferred to experimental units (PVC cages) after the last nymphal ecdysis and were removed from these sites between the 4(th) and 5(th) reproductive day. From this offspring, one specimen was randomly chosen to take part the experiment one observed an increase in nymphal phase and a decrease of aphid fitness in treatments with different levels of silicon. In relation to the reproductive capacity of the insect one gotten for the treatment with application the treatment with application silicic acid distinct Values of the witness presented high number of nymphs/female. Fifteen characters were Surveyed in the morphometry analysis, from which the width of the head and the total length and of antenna of C. atlantica were kept in plants with silicon application differed statistically from control.
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