Found this interesting info on coconut water when I was checking to see if I should use it in flower, the answer is yes, it’s got the same cytokinin/zeatin enzymes as corn SST:
“Young coconut water, the liquid endosperm, has a caloric value of 17.4/100 gram. Coconut water contains vitamin B such as nicotinic acid (B3) (0.64 microgram (μg)/milliliter (mL), pantothenic acid (B5) (0.52 μg/mL), biotin (0.02 μg/mL), riboflavin (B2) (<0.01 μg/mL), folic acid (0.003 μg/mL), trace amounts of thiamine (B1) and pyridoxine (B6). Other compounds are sugars, sugar alcohols, vitamin C, free amino acids, phytohormones (auxin, 1, 3 -diphenylurea, cytokinin), enzymes (acid phosphatase, catalase, dehydrogenase, diastase, peroxidase, RNA polymerases) and growth promoting factors.”
“Young coconut water contains a group of phytohormones, auxin (150.6 nanomolar(nM)), gibberellins (GAs) (54.5 nM), several cytokinins (186.12 nM), and abscisic acid (ABA) (65.5 nM).”
“Young coconut water is rich in minerals, the inorganic ions such as potassium (290 milligram percent (mg%)), sodium (42 mg%), calcium (44 mg%), magnesium (10 mg%), phosphorus (9.2 mg%), etc.”
And then this paper which looks even better but I am not cracking tonight: