*6.4.1 Phytoremediation*

Phytoremediation involves using plant species to diminish the concentration of the salts or contaminants in the soil. Plant species like halophytes, hyper accumulating plants, salt tolerant and transgenic salt tolerant plants used for phyto remediation of saline soil. ex., *Tamix chinensis, Lycium chinense, Gossypium hirsutum*. There are three types of halophytes: (a) salt excluding – filters the salt by specially adoptive root system, ex. *Rhizophora muaneta*; (b) salt excreting – regulate the plant internal cell physiology, ex. *Avicennia officinalis*; salt accumulating – accumulating salts in cells and tissues of halophytes, ex. *Sonneratia apetala* [28].
