An Analysis of Soil Water Movement towards Seedlings Prior to Emergence
Chapter
Abstract
Water uptake by viable seeds initiates the metabolic processes which lead eventually to seedling emergence. There exists a discrepancy between germination percentage determined under laboratory conditions and the field performance of the same seed stock. Excluding pest damage, it seems that under field conditions the soil moisture in the surface layer is continuously depleted due to evaporation, causing the germinating seed to compete with the atmosphere evaporative demand for water, a competition which is more severe under dry-farming systems.
Keywords
Soil Water Water Uptake Soil Water Content Soil Water Potential Hydration Level
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© Springer-Verlag Berlin — Heidelberg 1973