Effect of salicylic acid and ascorbic acid on germination indexes and enzyme activity of sorghum seeds under drought stress
Автор: Tabatabaei S.A.
Журнал: Журнал стресс-физиологии и биохимии @jspb
Статья в выпуске: 4 т.9, 2013 года.
Бесплатный доступ
Seed priming methods have been used to increase germination characteristics under stress conditions. The effects of drought stress (0, -4, -8, -12 and -16 bar) and salicylic acid 25 ppm at 15 °C for 15 h and ascorbic acid 25 ppm at 15 °C for 15 h on germination percentage, germination index, means time to germination, normal seedling percentage and enzyme activity were assessed in the laboratory for sorghum seeds ( Sorghum bicolor L. ). Results showed that the highest germination percentage (83.33%), normal seedling percentage (69.67%), germination index (25.29) and the minimum means time to germination (2.87) were attained from priming with salicylic acid in control conditions. Therefore, seed priming significantly (p≤ 0.01) increased germination characteristics as compared to the unprimed under drought stress. Also, priming increased catalase and ascorbate peroxidase as compared to the unprimed seeds.
Sorghum bicolor l. hormone-priming, germination characteristics, drought stress, enzyme activity
Короткий адрес: https://sciup.org/14323813
IDR: 14323813
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