The effect of peduncle length on the capsule yield and morphine content of opium poppy (Papaver somniferum)
Rasteniev"dni Nauki 12(6): 49-53
In trials with the cvs C-188 and P-360 sown in the autumn, capsules with 0 to 35 cm long peduncles were examined for total raw material and morphine yields. Capsules with 10-15 cm long peduncles produced the highest yield of morphine/ha. Greater peduncle length reduced morphine content and per ha yields.