A viable seed goes from a dormant, quiescent state to one of active growth allowing the embryo to break through its seed coat in the process of germination. This happens if, and when, internal chemical and physical conditions occur and necessary environmental requirements are met. Many aquatic and wetland plants germinate under water where 02 levels are low and may not germinate when exposed to air. Cattails and wild rice are examples. Other methods are a hot water seed soak, boiling water dip, or room temperature H20 soak for 24 - 48 hours, and various dips in acids.
Diameter is approx.
Treatment I soak seed in distilled water 48 hours. Soak until cool, one hour. Microwave ovens emit electromagnetic radiation in the radio wave spectrum. The microwaves excite H20 molecules, which are bi-polar, causing them to vibrate. This generates heat, increases vapor pressure, and causes the volume of H20 to expand both as a liquid and as a gas.