1. Abdelgadir EM, Oka M, Fujiyama H (2005) Characteristics of nitrate uptake by plants under salinity. J Plant Nutr 28:33–46
2. Agha F, Gul B, Khan MA (2009) Seasonal variation in productivity of Atriplex stocksii from a coastal marsh along the Arabian Sea coast. Pak J Bot 41:1053–1068
3. Aziz I, Khan MA (2001) Seasonal variation in ecophysiology of Avicennia marina populations growing in polluted Arabian Sea coast around Karachi. Pak J Bot 33:429–441
4. Aziz I, Gulzar S, Noor M, Khan MA (2005) Seasonal variation in water relations of Halopyrum mucronatum (L.) Stapf. Growing near Sandspit, Karachi. Pak J Bot 37(1):141–148
5. Aziz I, Gul B, Gulzar S, Khan MA (2011) Seasonal variations in plant water status of four desert halophytes from semi-arid region of Karachi. Pak J Bot 43:587–594