Pollen fertility estimation of selected taxa of Kaghan valley, Pakistan

Pollen fertility estimation of selected taxa of Kaghan Valley was surveyed. A total 51species belonging to 22 different families i.e., Acanthaceae, Apiaceae, Asteraceae,Berberidaceae, Brassicaceae, Caprifoliacaeae, Caesalpinaceae, Hippocastanaceae, Lythraceae,Malvaceae, Oleaceae, Paplionaceae, Podophylaceae, Polygonaceae, Rosaceae, Ranunculaceae,Salicaceae, Scrophulariaceae, Solanaceae, Urticaceae Valerianaceae and Poaceae wereinvestigated for their pollen fertility. The dominant families regarding number of specieswere Asteraceae having 8 species and then Poaceae and Rosaceae having 6 species. Highestpollen fertility 100% value was observed in Phragmites communis Trin. and Solanum surattense Burm.f., while the lowest 58.49% value was observed in Sorbaria tomentosa (Lindl.) Rech. Most of the species showed a range of pollen fertility as 70-80 %, indicated thatthe flora of Kaghan Valley is well-established and stable