Thousand Grain Weight (TGW)

Determination of the TGW is essential to enable accurate control of the seed rate when sowing to obtain the correct plant population target.  Also consider the factors affecting seed rate (i.e.) Seedbed conditions, drilling date, germination %, winter kill etc.

Seed Rate  = Target Plant Population/Sq. Metre x Thousand Grain Weight (grams)

(Kg/Ha)                               % Expected Plant Establishment

Sample Weight: 200g

Result: 1 - 2 Days

The sample weights stated are the recommended minimum and the result times are approximate.

The results of each test refer to the analysis performed on the material received. Their relationship to the composition of the original bulk will depend on the sampling procedures employed.