Agronomic Services — Wheat Tissue Sampling, slide 5 of 12

Determining Zadoks GS 30 (Feekes GS 5)

The growing point at Zadoks
GS 30 (Feekes GS 5) looks
like a tiny green pine cone
and is 1/2 inch above the
crown.

Once wheat reaches this
growth stage, collect tissue
and biomass samples.




illustration credit:
R. Weisz & R. Heiniger;
John Burleson