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| Pereira,Kleane Targino Oliveira; Paiva,Emanoela Pereira de; Souza Neta,Maria Lilia de; Benedito,Clarisse Pereira; Torres,Salvador Barros. |
| ABSTRACT The tetrazolium test is one of the promising alternatives to determine the viability of dormant, recalcitrant and slow-germinating seeds. The objective of this study was to adapt the tetrazolium test methodology to estimate the viability and vigor of Piptadenia stipulacea (Benth.) Ducke seeds. For this, a sample of seeds was classified into three sublots using round sieves, corresponding to six, five and four millimeters in diameter, respectively. Moisture content, imbibition curve, germination, emergence, germination and emergence speed indices, mean germination time and seedling emergence were initially evaluated. The second stage was conducted using a completely randomized experimental design, in 3 x 9 factorial scheme, corresponding to three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fabaceae; Biochemical test; Viability; Forestry species; Triphenyl formazan. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100419 |
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| Sarmento,Erivanessa Costa Sousa; Pereira,Kleane Targino Oliveira; Oliveira,Fernando Sarmento de; Leal,Caio César Pereira; Torres,Salvador Barros; Dutra,Alek Sandro. |
| ABSTRACT The objective was to evaluate the physical characteristics and physiological behavior of A. oleracea seeds during imbibition and germination, under different temperatures and photoperiods, as well as to determine the duration of the germination test. For this, biometric parameters (length, width and thickness) were measured in 100 seeds and thousand-seed weight was determined. In addition, the external structures of seeds and seedlings were described and the imbibition curve was monitored. Subsequently, the germination test was conducted at temperatures of 20, 25, 30, 35, 20-30 and 25-35 ºC, under constant and alternating light and dark photoperiods (12 h), arranged in 6 x 3 factorial scheme, with four replicates of 50 seeds. Seeds were sown in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Asteraceae; Jambu; Imbibition; Seed morphology; Seed analysis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400660 |
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