in vivo germination tests were used to compare the viability ofpollen from male flowers collected at pollination time was and ofpollen from male flowers stored for 3 h in a box with high relativehumidity (95%). Male flowers from ‘Fuerte’ were collected (whenall the anthers had dehisced) and stored in a semi-open petri dishmaintained in a box with high relative humidity under the tree dur-ing 3 h. A total of 74 flowers were hand pollinated with fresh pollenand 77 with stored pollen. Pollination with fresh and stored pollenwas made at the same time to avoid a possible effect of the stig-matic receptivity on pollen behavior. The next day, these flowerswere fixed and prepared for microscope observation (see Section2.9).