Growth stages

Question 1

Describe the different stages of Zadok’s scale

Answer 1

(0 = 0-9, 1 = 10-19, etc.)

0. Germination
1. Seedling growth
   Each increment represents the number of leaves, so 11 is 1st (true) leaf emerged, 12 = 2nd, and so on)
2. Tillering
   Each increment = +1 tiller. 20 = main stem, 21 = main stem + 1 tiller, etc.
3. Stem elongation
   31 - 36 = nodes detectable
   37 = flag leaf visible
   39 = flag leaf ligule just visible

4. Booting (appearance of the flag leaf sheath)
41 = flag leaf sheath extending
43 = boots just visibly swollen
45 = boots swollen
47 = flag leaf sheath opening
49 = first awns visible