Author/Authors :
Eisvand، Hamid Reza نويسنده Department of Agronomy and Plant Breeding, Lorestan University, Khorram Abad, Iran , , Shahrosvand، Somayeh نويسنده Department of Agronomy and Plant Breeding, Lorestan University, Khorram Abad, Iran , , Zahedi، Bahman نويسنده Department of Horticulture, Lorestan University, Khorram Abad, Iran , , Heidari Keshel، Saeed نويسنده Proteomics Research Center, Faculty of Paramedical Sciences , , Afrougheh، Shahram نويسنده Department of foreign language, Islamic Azad University, Boroujerd branch,Boroujerd, Iran ,
Abstract :
In order to improve seed and seedling quality indices of two carrot cultivars (Nantes and Forto), a hormonal priming technique was used. A factorial experiment was carried out on the basis of randomized complete block design (RCBD) with 3 replications and 16 hormonal priming treatments such as gibberellin and salicylic acid in four concentrations including 0, 50, 100 and 150 ppm. The interaction of cultivar ? hormone ? concentration was significant for emergence percentage. The results showed that emergence rate, vigor index and root and shoot length were affected by treatments. The fastest and slowest emergence were observed in N-0 (Nantes hydro-primed seed) and F-GA50 (Forto primed with Gibberellin 50 ppm) respectively. The highest vigor index was N-0 (Nantes primed with distilled water) and least vigor index was N-GA50 (Nantes primed with Gibberellin 50 ppm). In both cultivars, emergence rate, vigor index and root and shoot length of hydro-priming were more than hormonal priming. Comparison of the two cultivars suggests that Forto has a more positive response to priming than Nantes
