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Agronomic Services — Wheat Tissue Sampling, slide 5 of 12

Determining Zadoks GS 30 (Feekes GS 5)

diagram of growing point at growth stage 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

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

illustration credit:
R. Weisz & R. Heiniger;
John Burleson
button to select first slide in series.button to select previous slide in series.button to select next slide in series.button to select last slide in series.button to select wheat pictorial index.button to return to crop tissue sampling pictorial menu.

Last Update April 29, 2013


NCDA&CS Agronomic Services Division, Colleen M. Hudak-Wise, Ph.D., Director
Mailing Address: 1040 Mail Service Center, Raleigh NC 27699-1040
Physical Address: 4300 Reedy Creek Road, Raleigh NC 27607-6465
Phone: (919) 733-2655; FAX: (919) 733-2837