Articles
EFFECTS OF TEMPERATURE, OXYGEN AND OSMOTIC PRESSURE ON GERMINATION OF CARROT SEEDS : EVALUATION OF SEED QUALITY
Article number
354_1
Pages
9 – 16
Language
Abstract
Carrot (Daucus carota L.) seeds are not dormant.
They germinate in a wide range of temperatures (5–35°C), and the thermal optimum is ca 25–30°C. Low temperatures (5–10°C) slow down germination and reveal seed heterogeneity and differences among cultivars and batches.
Carrot seeds are also very sensitive to oxygen deprivation and osmotic pressure.
The results obtained allow a better understanding of poor field emergence under unfavourable sowing conditions (too low or too high temperatures, or soils with excess of water), and lead to a recommendation of carrying germination tests in non-optimal conditions for better evaluation of seed quality.
They germinate in a wide range of temperatures (5–35°C), and the thermal optimum is ca 25–30°C. Low temperatures (5–10°C) slow down germination and reveal seed heterogeneity and differences among cultivars and batches.
Carrot seeds are also very sensitive to oxygen deprivation and osmotic pressure.
The results obtained allow a better understanding of poor field emergence under unfavourable sowing conditions (too low or too high temperatures, or soils with excess of water), and lead to a recommendation of carrying germination tests in non-optimal conditions for better evaluation of seed quality.
Publication
Authors
F. Corbineau, M. Picard, D. Côme
Keywords
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