Why do few plant species require higher cytokinins concentrations (i.e. 3/4 mg/L) as compared to other species ?

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Ajay Thakur

Answers may be many but quick opinion is

1. depends on endogenous auxin and cytokinins and their availabilty in that plant species.

2. In my experience Bamboos, requires cytokinins higher than others.

Ashutosh Pathak

It depends on endogenous auxin and cytokinin levels as well as maturity and type of explant.

Tarek Y S Kapiel

Article Cytokinin Synthesis, Signaling, and Function-Advances and New Insights