Summary
This field trial evaluated pre-sowing seed treatments on two carrot varieties in the forest-savanna transition zone of Nigeria. Hydro-priming significantly reduced germination time (50% earlier than control), and Sand Matric Priming enhanced vegetative growth parameters including plant height and stem girth, though pre-sowing treatments did not significantly increase root yield. The Nantes variety showed earlier germination, whilst Touchun produced taller plants with thicker stems.
Regional applicability
This study was conducted in Nigeria's forest-savanna transition zone and addresses temperate carrot production in tropical conditions. The findings may have limited direct applicability to United Kingdom carrot production systems, which operate in a cooler temperate climate with different day-length regimes and soil conditions; however, the priming techniques evaluated (hydro, hallo, sand matric) are globally applicable and could be evaluated in UK horticultural contexts.
Key measures
Germination percentage, germination time, plant height, number of leaves per plant, total leaf area per plant, stem girth, root length, root diameter, root yield
Outcomes reported
The study measured germination percentage, germination time, plant height, leaf area, stem girth, root dimensions, and root yield in response to four pre-sowing treatments (hydro-priming, hallo-priming, sand matric priming, and control) applied to two carrot varieties. Pre-sowing treatments significantly accelerated germination and influenced vegetative growth parameters, though root yield was not significantly affected.
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