Reproductive biology of Piper longum L.
Keywords:
Piper longum, Medicinal plant, Anthesis, Anther dehiscence, Stigma receptivity, Reproductive biologyAbstract
Piper longum L. is an important medicinal species. Reproductive biology of Piper longum was studied in detail. Spikes were cylindrical and creamy white in female. In male and bisexual types, immature spikes were green, changing to dull yellow on maturity. Time taken for attaining full length of spike was 22 days in female, 43 days in male and 46 days in bisexual types. Anthesis and anther dehiscence were between 7.30 am and 4.30 pm with a peak between 10.30 am to 12.30 pm. Pollen fertility was maximum at 9.30 am (42.54 per cent). Complete opening of flowers in an inflorescence took seven days in male, female and bisexual types. Complete dehiscence of anthers also took one week in male and bisexual inflorescences. Fruits did not normally contain viable seeds. Viable seeds could be produced on artificial pollination.align="justify">Downloads
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