Abstract

                                Studies on blossom biology of guava and its relatives revealed that both longitudinal and Irregular but splitting were recorded with more of longitudinal splitting. There was no clear vision of bud spiliting. In P. cattlelanum and P. cattleianum var lucidum which showed bright shinning on the top of the bud in the previous day evening The anthesis was between 4.00 a. m. to 7.05 a. m. and the peak anthesis differ.d from species to species. The duration of anthesis ranged from 30 minutes to 135 minutes. The anther dehiscence was between 4 a. m. and 8 a. m. in guava cultivars with a peak between 5 a. m. to 7 a, m. whereas it was 4 to 9 a, m. in relatives with individual species differing in their peak opening. The stamens splitted longitudinally.

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