diff --git a/assays/plant_phenotyping/protocols/score_flowering.md b/assays/plant_phenotyping/protocols/score_flowering.md
new file mode 100644
index 0000000000000000000000000000000000000000..9e7063175eb4bde70eb93be8b2447a5e668e1855
--- /dev/null
+++ b/assays/plant_phenotyping/protocols/score_flowering.md
@@ -0,0 +1,8 @@
+## Score flowering
+
+- score in DAE (days after emergence) as the period between plant emergence from soil and reaching awn emergence on the main culm (Zadoks stage 49, Zadoks et al. (1974))
+
+
+**References:**
+
+Zadoks JC, Chang TT, Konzak CF. A decimal code for the growth stages of cereals. Weed Res. 1974:14(6):415–421. https://doi.org/10.1111/j.1365-3180.1974.tb01084.x
\ No newline at end of file
diff --git a/assays/plant_phenotyping/protocols/score_flowering.txt b/assays/plant_phenotyping/protocols/score_flowering.txt
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000