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KMID : 0613820060160030493
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Journal of Life Science
2006 Volume.16 No. 3 p.493 ~ p.499
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Effect of Plant Growth Regulators and Seed Priming Treatment on the Germination and Early Growth of Snapdragon (Antirrhinum majus L.).
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Kang Jum-Soon
Choi In-Soo
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Abstract
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In this study, we investigated the effect of growth regulators, seed priming, and light condition for the germination and early growth in Snapdragon (Antirrhinum majus L.). The optimum concentration of growth regulator for the promotion of germinability turned out to be 250 uM of GA₃. The germination enhancement in combination of GA₃＋BAP was not significant. The optimum priming condition for the maximum germinability was 2 day treatment of 200 mM of KNO₃, which increased germination by 14% and shortened the day to germination by 3.5 days. The optimum temperature for germination was 15~25℃. The germination frequency was decreased to lower than 20% at 30℃, which showed that seeds of Snapdragon germinates better at low temperature than high temperature. The germination frequency was different at light condition; it was low at dark condition, but was increased by 15~20% at red light condition. The combination of GA₃ and seed priming showed better germinability than the single treatment of GA₃ and seed priming.
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KEYWORD
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Gibberellic acid(GA₃), KNO₃, light condition, germinability, Snapdragon
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