University of Guilan Iranian Journal of Seed Sciences and Research 2476-3780 5 1 2018 05 22 Effect of accelerated aging and seed priming on germination and some biochemical indices of cumin (Cuminum Cyminum L.) Effect of accelerated aging and seed priming on germination and some biochemical indices of cumin (Cuminum Cyminum L.) 69 81 2901 10.22124/jms.2018.2901 FA Ramin Piri Yasouj University Ali Moradi Yasouj University Masoumeh Hosini Moghaddam Yasouj University Journal Article 2016 09 24 In order to investigate the effect of accelerated ageing and priming on biochemical and germination indices of cumin, a two factors experiment was conducted based on completely random design with four replications. Experimental factors were included seed deterioration in four levels (control, 12, 24, 36 hours) and priming in five levels (urea and KH<sub>2</sub>PO<sub>4</sub> in two Osmotic potentials of -1 and -1.5 Mpa, and hydro-priming with distilled water). The highest catalase and ascorbate peroxidase activities as well as soluble protein content were observed in the non-deteriorated seeds primed with KH<sub>2</sub>PO<sub>4 </sub>-1.5 Mpa. Also that the highest germination percentage (86%) and germination rate (2.34 seed day<sup>-1</sup>), seedling length vigor index (4.90) and the lowest mean germination time (8.4 day) related to the non-deteriorated seeds primed with KH<sub>2</sub>PO<sub>4</sub> -1.5 Mpa. The biggest shoot (3.52cm) and root (2.32cm) length attained from not deteriorate seeds that primed with urea -1.5 Mpa. Generally, the results showed that priming by KH<sub>2</sub>PO<sub>4 </sub>with osmotic potential of -1.5 Mpa could improve vigor of deteriorated seed of cumin. In order to investigate the effect of accelerated ageing and priming on biochemical and germination indices of cumin, a two factors experiment was conducted based on completely random design with four replications. Experimental factors were included seed deterioration in four levels (control, 12, 24, 36 hours) and priming in five levels (urea and KH<sub>2</sub>PO<sub>4</sub> in two Osmotic potentials of -1 and -1.5 Mpa, and hydro-priming with distilled water). The highest catalase and ascorbate peroxidase activities as well as soluble protein content were observed in the non-deteriorated seeds primed with KH<sub>2</sub>PO<sub>4 </sub>-1.5 Mpa. Also that the highest germination percentage (86%) and germination rate (2.34 seed day<sup>-1</sup>), seedling length vigor index (4.90) and the lowest mean germination time (8.4 day) related to the non-deteriorated seeds primed with KH<sub>2</sub>PO<sub>4</sub> -1.5 Mpa. The biggest shoot (3.52cm) and root (2.32cm) length attained from not deteriorate seeds that primed with urea -1.5 Mpa. Generally, the results showed that priming by KH<sub>2</sub>PO<sub>4 </sub>with osmotic potential of -1.5 Mpa could improve vigor of deteriorated seed of cumin. Antioxidant enzyme Cumin Germination Osmopriming Soluble protein https://jms.guilan.ac.ir/article_2901_98c64a0ee80b6f23144f3296dac1322c.pdf