Effects of seed priming on by different physical germination, physiological and morphological characteristics in sunflower (Helianthus annuus)

Subject Areas : New Finding in Agriculture

S. Baser kouchebagh ¹ , F. Farahvash ² , B. Mirshekari ³ , F. Rahimzadeh Khoei ⁴ , H. Kazemi Arbat ⁵

1 - PHD student, Department of Agronomy and plant breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
2 - Department of Agronomy and plant breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
3 - Department of Agronomy and plant breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
4 - Department of Agronomy and plant breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
5 - Department of Agronomy and plant breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran

Received: 2015-11-14 Accepted : 2015-11-14 Published : 2013-10-23

Keywords: Germination percentage, Sunflower, seed priming, physiological and morphologic traits,

Abstract :

In order to study the effect of different seed treatments on germination of sunflower, on experiment was conducted in laboratory and greenhouse stages with completely randomized design and three replications in laboratory and four replications in greenhouse, in researcher  Faculty of Islamic Azad University of Tabriz in 2013. Treatments included, ultrasonic treatments with maximum (3 w.m-2) and gamma and beta irradiation treatments (2 µc) for 10 minutes laser treatments (6328A°) and magnetic field (40 MT) in three time (5, 10, 15 minutes) on wet seed, hydro-priming for 24 hourse and control. Results indicate that maximum final germination percentage was by seed treatments with laser irradiation for 10 minutes (nearly by 98.33%). Cultivating after hydro-priming, seedling length ratio to control inceased 99%. Highest vigor index was magnetic field treatment for 5 minutes. Highest root length was magnetic field treatment for 15 minutes. Magnetic field treatment for 15 minutes had the most effect on plant height with 93 mm when sunflower seeds that were treated by magnetic field for 15 minutes were cultivated stem dry weight ratio to control increased nearly 121%. Lowest stem dry weight was by gamma irradiation (12.16 g). Results show that physical irradiation treatments are for recommended for increased product.

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