Morpho-Physiological Traits and Oil Quality in Drought-Tolerant Raphanus sativus L. Used for Biofuel Production

L. is a potential source of raw material for biodiesel fuel due to the high oil content in its grains. In Brazil, this species is cultivated in the low rainfall off-season, which limits the productivity of the crop. The present study investigated the effects of water restriction on the physiological...

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Published in:Plants (Basel) 2024-06, Vol.13 (12), p.1583
Main Authors: Moura, Luciana Minervina de Freitas, Costa, Alan Carlos da, Müller, Caroline, Silva-Filho, Robson de Oliveira, Almeida, Gabriel Martins, Silva, Adinan Alves da, Capellesso, Elivane Salete, Cunha, Fernando Nobre, Teixeira, Marconi Batista
Format: Article
Language:English
Subjects:
adaptation strategies
Agricultural production
biodiesel
Biodiesel fuels
Biofuels
Chemical composition
Chemical properties
Chloroplasts
Crude oil
Developmental stages
Drought
Drought resistance
Field capacity
Flowering
forage turnip
Gas exchange
Grain
Growth stage
Leaves
Oils & fats
Photochemicals
Physiological effects
Physiology
Productivity
Proline
Radishes
Rainfall
Raphanus sativus
Raw materials
Vegetable oils
Water deficit
Water relations
Water shortages
Water supply
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Summary:L. is a potential source of raw material for biodiesel fuel due to the high oil content in its grains. In Brazil, this species is cultivated in the low rainfall off-season, which limits the productivity of the crop. The present study investigated the effects of water restriction on the physiological and biochemical responses, production components, and oil quality of at different development stages. The treatments consisted of 100% water replacement (control), 66%, and 33% of field capacity during the phenological stages of vegetative growth, flowering, and grain filling. We evaluated characteristics of water relations, gas exchange, chlorophyll fluorescence, chloroplast pigment, proline, and sugar content. The production components and chemical properties of the oil were also determined at the end of the harvest cycle. Drought tolerance of was found to be mediated primarily during the vegetative growth stage by changes in photosynthetic metabolism, stability of photochemical efficiency, increased proline concentrations, and maintenance of tissue hydration. Grain filling was most sensitive to water limitation and showed a reduction in yield and oil content. However, the chemical composition of the oil was not altered by the water deficit. Our data suggest that is a drought-tolerant species.
ISSN:2223-7747
2223-7747
DOI:10.3390/plants13121583