Thousand kernel weight
A metric expressed in grams that represents the weight of one thousand individual seeds of a specific crop at a standard moisture level.
Также говорят: TKW, thousand seed weight
This parameter is a fundamental indicator of seed vigor and quality. A higher thousand kernel weight usually reflects a higher accumulation of endosperm reserves, which is essential for uniform germination and strong early-stage development of the seedling.
Agronomists use this value to calculate the seeding rate accurately. By knowing the exact weight, farmers can adjust the number of seeds per square meter to achieve the desired plant density. Relying on default settings without testing the specific seed lot often leads to suboptimal crop stands and decreased yield potential.
A common error is failing to update seeding machinery settings after receiving a new seed batch, as variance in seed size significantly impacts the final population. Ensuring consistent sizing within a lot is also vital for maintaining uniform maturity at harvest.