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| Leal,Caio César Pereira; Dantas,Nadjamara Bandeira de Lima; Torres,Salvador Barros; Vale,Amsterdam Armênio de Medeiros; Freitas,Rômulo Magno Oliveira de. |
| ABSTRACT This study aimed to evaluate the tolerance of C. leprosum seedlings to salt stress during the emergence and early seedling development. The experiment was carried out between the months of August and September, in a greenhouse, and the substrate used was the commercial coconut fiber wetted with aqueous solutions of sodium chloride (NaCl), calcium chloride (CaCl2) and potassium chloride (KCl) with the electrical conductivities of 0.0, 1.5, 2.5, 3.5, 4.5, 5.5 and 6.5 dS m-1. We used a completely randomized design in a 3 x 7 factorial scheme (three salts x seven levels of electrical conductivity). We evaluated seedling emergence, emergence speed index, root length, shoot length, dry matter of roots and shoots. The results indicated significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Combretaceae; Salinity; Forest seeds. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000200300 |
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| Leal,Caio César Pereira; Torres,Salvador Barros; Dantas,Nadjamara Bandeira de Lima; Aquino,Gutierres Silva Medeiros; Alves,Tatianne Raianne Costa. |
| ABSTRACT Combretum leprosum Mart., commonly known as ‘mofumbo’, is used for medicinal purposes, recovery of degraded areas and apiculture. The objective of this study was to evaluate the effect of water stress on the germination and vigor of C. leprosum seeds as function of different temperatures. To compose the treatments, the substrate used was paper roll moistened with polyethylene glycol solutions (PEG 6000), at the following levels of osmotic potential: 0.0; -0.1; -0.2; -0.2; -0.4; and -0.5 MPa, and placed in chamber at constant temperatures of 25, 30 and 35 and alternating temperature of 20-30 °C, forming a 6 x 4 factorial. The seeds were submitted to the following evaluations: germination percentage, germination speed index, root length, shoot... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Combretaceae; Osmotic potential; Abiotic stress. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100413 |
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