Identification of salt (NaCl) tolerant plants of Eruca sativa Mill., during growth

Subject Areas : Journal of Plant Ecophysiology

O. Attaei ¹ , M. Vashani ² , B. Delnavaz Has ³

1 - گروه زیست شناسی، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران
2 - گروه زیست شناسی، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران
3 - گروه زیست شناسی، واحد ساوه، دانشگاه آزاد اسلامی، ساوه، ایران

Received: 2015-09-26 Accepted : 2015-09-26 Published : 2015-09-01

Keywords: Phenol, Biodiversity, Salinity, Photosynthetic pigments,

Abstract :

Rocket (Eruca sativa MILL.) with high biological and morphological diversity, is an important plant because of health promoting agents and consumption in medical, industrial and economic. It can grow in areas where rainfall and soil fertility are low with drought and salt tolerant characteristic. In this research, for screening the salt tolerant plants, 3-4 leaves plants were cultivated in pots in three replications and were treated by different amounts of salt (NaCl) in three phases by 15-day intervals. After each salt treatment, the morphology of remaining plants was studied. The results revealed that the remaining salt tolerant plants had numerous cuts in leaves and short fuzzy fruits. To study the biochemical changes in each salt treatment, the total phenol and photosynthetic pigments of plant parts of each treatment were measured. The phenol content of treated plants decreased considerably with increase of salt. Photosynthetic pigments were chlorophyll a, b and carotenoids and the results showed that with the salt increase, the amount of pigments did not change. Tolerant plants have cutoff leaves and short fuzzy fruits. In general, salt resistant plants or remained plants are cutoff leaves with short fuzzy fruits plants that their phenol content decreased, but photosynthetic pigments did not change by increasing of salt.