The effect of salinity on some morphological characteristics of two varieties of rice (Oryza Sativa L.) at seedling stage.

Subject Areas : Ecophysiology & Phytochemistry of Medicinal and Aromatic Plants

Ammar Bahari ¹ , عباس عظیم نژاد ² , yousef NikNezhad ³ , hormoz falah amoli ⁴

1 - دانشجوی دکتری زراعت، دانشگاه آزاد اسلامی واحد آیت‌الله آملی
2 - دانشجوی دکتری زراعت، دانشگاه آزاد اسلامی واحد آیت‌الله آملی
3 - استادیار گروه زراعت، دانشگاه آزاد اسلامی واحد آیت الله آملی
4 - استادیار گروه زراعت، دانشگاه آزاد اسلامی واحد آیت الله آملی

Received: 2016-03-06 Accepted : 2016-03-25 Published : 2016-02-20

Keywords: Salt stress, Morphological, Key words: rice,

Abstract :

In order to evaluate the morphological changes of rice seedlings (variety of Neda and Fajr) under salinity management in 1394 was conducted in Islamic Azad University, Ayatollah Amoli. This factorial experiment in a completely randomized design with two genotypes (varieties Neda and Fajr) in four salinity levels (zero, 40, 80 and 120 mM sodium chloride) and was performed in triplicate. Results Mean Square showed that the cultivars of leaf length, plant height, root length, total dry weight and chlorophyll content, significant differences exist. But between different levels of salinity treatments in terms of the significant difference was observed on the surface of a percent. Based on the results, all growth traits including plant height, leaf length, root length, seedling dry weight and chlorophyll index significantly decreased salinity meters. In general, the results show that the difference in salinity tolerance and morphological changes in plants under stress, even among different varieties within a species can also be seen.