5.4 – How Seed Production and Seed Conditioning May Influence Seed Quality

“Quality seed doesn’t just happen; there is a lot of effort that goes into the entire production process from variety development and ending only after the seed has been planted.  Quality may be reduced at any stage during production and handling.”  (Gregg, Bill and Gary Billups. Seed Conditioning Volume 2 Technology Part A.  CRC Press, 2010)

Gregg and Billups designate four categories of seed quality, all of which may be influenced – positively or negatively – by seed conditioning. Careful attention, cleanliness, and maintaining variety identity are essential for effective seed conditioning.

Category 1 – Genetic or Varietal Purity of the Seed

Varieties can lose genetic purity or become contaminated during production. Therefore, seed growers and producers must take special care. Click on each topic below to learn more about issues during production and those during conditioning to be aware of.

Category 2 – Seed Viability or Physiological Quality

Viability is defined by germination rate, dormancy, and hard seed analysis, as conducted by Seed Labs. This data is crucial for labeling seed per state and federal laws. Click on each topic below to learn more about issues during production and those during conditioning to be aware of.

Category 3 – Seed Purity (Physical Makeup of the Seed Lot)

Seed purity refers to the composition of the seed lot, including other crop seeds, weed seeds, noxious weeds, and inert materials. Purity data is gathered through inspection, sampling, and lab analysis. Click on each topic below to learn more about issues during production and those during conditioning to be aware of.

Category 4 – Mechanical Damage

Mechanical damage, like cracks, chips, or breaks in the seed coat, can reduce germination potential and introduce pathogens that cause disease. Click on each topic below to learn more about issues during production and those during conditioning to be aware of.