Effect of Seed Priming with CaCl2 Solution on Germination and Vigor of Sweet Pepper Seeds
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Abstract
Sweet pepper (Capsicum annuum L.) seeds often have problems concerning low germination and non-uniform germination. This study aimed to investigate the effects of seed priming with calcium chloride (CaCl2) solutions in different concentrations on germination and vigor of sweet pepper seeds. The experiment was designed in a completely randomized design (CRD) with five treatments, including non-primed seeds (control), seed priming with reverse osmosis water (hydropriming), seed priming with CaCl2 solutions at the concentrations of 10, 30 and 50% for 72 hours. After priming, seed moisture was reduced to the initial level of approximately 7%. The results showed that all priming methods had no effect on percentages of radicle emergence and germination, when compared with non-primed seeds. However, primed seeds had time to reach 50% or a half of radicle emergence (T50RE), days to emergence (DTE), time to reach 50% or a half of germination (T50) and mean germination (MGT) faster than non-primed seeds. However, seed priming with 10% CaCl2 solution tended to have the highest germination of 84.00%. In addition, primed seeds had a high speed of T50RE at 5.81 days, DTE at 6.48 days, T50 at 11.51 days and MGT at 12.20 days when compared with non-primed seeds had the germination of 74%, slow T50RE of 6.84 days, DTE of 7.45 days, T50 of 12.63 days and MGT of 12.71 days.
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King Mongkut's Agricultural Journal
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