Teagasc Crop Report

Cereal Growth Stages

Cereal Growth Stages

Thursday 23rd January 2020
(Updated Thursday 23rd January 2020)
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Cereal Growth Stage guide

Crops may vary considerably in their outward appearance and number of tillers when this stage is reached.

It can only be determined by detailed examination and dissection of the main tiller

Main stem from where the lowest leaves are attached is 1cm or more to the shoot apex, but 1st internode is less than 1cm.

An internode is 1cm or more but the internode above it is less than 2cm


2nd (and subsequent) nodes counted when the internode below them exceeds 2cm


Reference: Tottman D.r. (1987), The Decimal Code for the Growth Stages of Cereals. Ann. appl. Biol. 110, 441-454