heterostyly

(redirected from Pin and thrum)
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heterostyly

[‚hed·ə′räst·əl·ē]
(botany)
Condition or state of flowers having unequal styles.
References in periodicals archive ?
Fagopyrum esculentum pin and thrum plants, on the other hand, have more than one possible genotype.
Because of the differences between pin and thrum in morphology and genetics, utilizing the pin plant has advantages over thrum plants in a crop improvement program.