Physiological quality: the effect of different levels of seed vigour and waterlogging stress
ABSTRACT The aim of this study was to evaluate the agronomic traits of soya bean cultivars as well as the physiological quality of the produced seeds based on the initial vigour of seeds from different cultivars subjected to waterlogging stress at different phenological stages. Soya beans of mixed v...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidade Federal do Ceará
2025-08-01
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| Series: | Revista Ciência Agronômica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902025000100670&lng=en&tlng=en |
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| Summary: | ABSTRACT The aim of this study was to evaluate the agronomic traits of soya bean cultivars as well as the physiological quality of the produced seeds based on the initial vigour of seeds from different cultivars subjected to waterlogging stress at different phenological stages. Soya beans of mixed vigour were used, obtained under controlled conditions from the NA5909RG, NS6209RR, TMG7363RR and TECIRGA6070RR cultivars. The study comprised three factors: four cultivars, two levels of seed vigour (high and low), and three cultivation regimes (no waterlogging, five days temporary waterlogging from stage V6, and five days temporary waterlogging from stage R2). The following parameters were determined: number of pods per plant, number of seeds per pod, number of seeds per plant, 1000-seed weight, plant height, number of productive nodes on the main stem, height of the first pod insertion, seed yield per plant, and centesimal protein and oil content. Waterlogging stress results in a reduction in the number of pods per plant, number of seeds per plant, number of productive nodes on the main stem, number of secondary branches, seed yield per plant, oil content, and the physiological quality of the produced seeds. The high vigour of the seeds affords an increase in seed yield per plant, in the 1000-seed weight, number of nodes on the main stem, height of the first pod insertion, and oil content of the seeds. |
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| ISSN: | 1806-6690 |