Effects of Salicylic Acid Priming Application in Some Switchgrass (Panicum virgatum L.) Cultivars

Authors : Gülen Özyazici, Semih Açikbaş, Mehmet Arif Özyazici

Pages : 137-146

Doi:10.47947/ijnls.1400366

View : 49 | Download : 62

Publication Date : 2023-12-30

Article Type : Research Paper

Abstract :This study aimed to determine the effects of salicylic acid (SA) seed priming applications on the germination parameters of switchgrass (Panicum virgatum L.). The research was carried out in Siirt University, Faculty of Agriculture, Field Crops Laboratory, under controlled conditions at 25±1 °C. The subject of the study consists of the SA priming doses which is (0, 0.10, 0.25, 0.50, 0.75, 1.00 and 1.25 mM) applied to 3 different cultivars of switchgrass (P. virgatum L.) (Kanlow, Shawnee and Trailblazer). The experiment was carried out in Petri dishes according to the randomized complete design with four replications. In the study, germination parameters such as germination percentage, mean germination time, germination index and coefficient of uniformity of germination, and seedling growth parameters such as seedling fresh and dry weight, seedling vigor index were examined. It was detected that all parameters except for seedling fresh weight were statiscally differences among the cultivars (p<0.01). In addition, SA doses significantly affected all germination and seedling growth parameters except seedling fresh weight. To sum up, pre-sowing seed priming with SA can be effective in breaking the seed dormancy and 0.25 mM SA can be used to improve germination and seedling growth in switchgrass to overcome dormancy problem.
Keywords : Switchgrass, Cultivars, Salicylic Acid, Germination, Seedling Growth