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Variability in floral structure and floral biology of finger millet Gaertn



Variability in floral structure and floral biology of finger millet Gaertn



Indian Journal of Genetics & Plant Breeding 58(1): 107-112



The variability in floral structure and floral biology was studied in 24 strains of finger millet. The inflorescence consisted of a cluster of variable number of spikes called fingers. Each finger has two opposite rows of spikelets. A spikelet contains variable number of florets. The florets are hermaphrodite, perfect except for the terminal florets. The floret is covered by two large glumes, enclosed between a pair of palea. The florets are in the axil of lemma. The androecium consists of three stamens. The gynoecium is bicarpellary, unilocular with superior ovary. Near the base of ovary two lodicules are present. There was a wide range of variation in the length of anther, filament, stigma and style. Anthesis occurred between 1.00 a.m. to 6.00 a.m., the peak period of anthesis being between 3.00 to 5.00 a.m. The pollen viability at the time of dehiscence of anthers ranged from 76.92 to 100 per cent. The pollen remained viable for 20 minutes.

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