Soil compaction and drought stress on shoot and root growth in crambe (Crambe abyssinica)
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Data
2015-01-01
Autores
Dias, Patrícia Pereira [UNESP]
Secco, Deonir
Santos, Reginaldo Ferreira
Bassegio, Doglas [UNESP]
Santos, Felipe Samways
Silva, Paulo Roberto Arbex [UNESP]
de Sousa, Saulo Fernando Gomes [UNESP]
Correia, Tiago Pereira da Silva [UNESP]
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Resumo
This study investigated the effects of soil compaction and irrigation management on shoot and root growth in crambe. Two experiments were conducted in a heated greenhouse. Experiments were arranged in a completely randomized design, in a factorial, with two irrigation treatments (well-irrigated or drought stress conditions, imposed at the flowering and grain filling stages) and six soil bulk density levels (0.90, 0.99, 1.08, 1.17, 1.26, and 1.35 Mg m<sup>-3</sup>), with four replicates. The restriction of the water supply during the stages of flowering and grain filling affects the growth and productivity of crambe. The roots of the crambe plant are not significantly affected by drought conditions or the interaction between drought conditions and soil compaction. Crambe shoot growth was not significantly affected by soil compaction, at soil densities up to 1.35 Mg m<sup>-3</sup>. Crambe is more sensitive to drought conditions than to soil compaction.
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Crambe abyssinica, Industrial crop, Irrigation management, Oilseed, Soil bulk density
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Australian Journal of Crop Science, v. 9, n. 5, p. 378-383, 2015.