Reproductive biology of Gloriosa superba
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Keywords:Glory lily, anthesis, stigma receptivity, pollination, pollen morphology
An investigation was carried out to study the reproductive biology of Gloriosa superba at Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore during 2011 - 2012. The flowers of Gloriosa superba were born on a long pedicel (10.45 cm). The scarlet red coloured tepal was 6.80 x 1.31 cm in dimension. The six radiating anthers were 3.34 cm long and the style was 6.40 cm. The individual flower weighed 2.52 g. The stamen displayed profuse orange-yellow pollen. The pistil possessed three loculed ovary which formed an ellipsoidal capsule. Mean number of days taken for completion of flowering phases was found to be 21.10 days and the percentage of bud opening and anther dehiscence was maximum at 9.30 am. The percentages of stigma receptivity, pollen viability and fertility were maximum on the day of anthesis. Pollens were oval shaped. The highest pod set was observed under artificial cross pollination followed by self-pollination and natural open pollination.
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