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| CRUZ,C.; SILVA,A. F.; VENTURINI,F. P.; GARLICH,N.; PITELLI,R. L. C. M.; PITELLI,R. A.. |
| ABSTRACTThe objective of this study was to evaluate the consumption potential, food preference and use of snail Pomacea canaliculata as a biocontrol agent of four submerged aquatic macrophytes (Ceratophyllumdemersum, Egeriadensa, Egerianajas and Hydrilla verticillata). Two experiments were performed. In the first experiment, the introduction of a snail took place and 10 grams of each macrophyte in plastic containers with 1 liter of water. The assessments of consumption by the snail were performed at each 48 hours, during 12 days. The second experiment was performed in 600 liters microcosms containing five snails in each experimental unit. Fifty grams of each macrophyte were offered the snails at the same time, adding the same amounts after seven, 14, 21... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquatic macrophytes; Biological control; Exotic species. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300433 |
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| FARIA,A. T.; FERREIRA,E. A.; ROCHA,P. R. R.; SILVA,D. V.; SILVA,A. A.; FIALHO,C. M. T.; SILVA,A. F.. |
| ABSTRACT Growth regulators can be used to further retard or inhibit vegetative growth. In this sense, the objective of this study was to determine the effects of age and number of trinexapac-ethyl applications on the growth and yield of sugarcane. The experiment was in a randomized complete block design with four replications. The treatments were in a 3 x 2 + 2 factorial arrangement, where factor A corresponded to the application times of the plant growth regulator (120, 200 and 240 days after bud burst (DAB) of sugarcane) and factor B to the number of applications (one or two applications). In addition, two controls (one with three applications and another application without the regulator) were added. The application of trinexapac-ethyl decreased the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulator; Application timing; Number of applications. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300491 |
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