There are seven flavonoids of maize pollen, and they occur in approximately the following relative proportions:
Samples of pollen from three relatives of maize have been analyzed for a comparison of their flavonoid patterns with that found in maize; the results are tentative because of the small number of plants sampled, but they show the following:
Euchlena mexicana: The flavonoid pattern is similar in all respects to that of Zea mays. All the same compounds are present, and they occur in approximately the same relative proportions.
Tripsacum dactyloides: The compounds are the same as those in Zea mays, but there are differences in relative proportions. Q1 and P2 are the major compounds; the other glycosides occur in trace amounts only.
Coix lachryma-jobi: The flavonoid pattern is similar to that of Zea mays except that P4 and P5 are present in greater relative proportions.
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