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KMID : 0613820030130010015
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Journal of Life Science
2003 Volume.13 No. 1 p.15 ~ p.20
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Germination of Gourd Seed Affected by Drying and Light Quality Treatments during its Period
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Kang Jin-Ho
Kang Shin-Yoon
Lee Sang-Woo
Yoon Soo-Young
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Abstract
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Seeds treated before sowing should be dried for their quality control on their sale or storage. The experiments were done to clarify the effect of drying, temperature and light quality treated during drying and germination on germination of gourd (Lagenaria siceraria Standl.) seeds. Drying of treated seeds was done at 35℃. After treated seeds were dried. their germination test was done at 10, 20 and 30℃ on the condition of darkness, but with blue, red, far-red light and darkness as light quality treatments. FR-yongjadaemok and FR-kunghap were used as test cultivars and their
daily germination rates were measured at treatment levels. Its presowing hydrated seeds were dried 10 hours at 35℃ until reached below their original moisture content, and germination rate between the above dried seeds and the conventional dry-heated ones was not significantly different. At 30℃ germination temperature, the treated seeds showed higher initial germination rate when dried under red light illumination than under darkness although their
germination rates were nearly same at each temperature of 10 and 20℃ being relatively low. Effect of the red light treatment during their drying continued to more than 3 months. Germination rate of the red light treated seeds during drying was reduced by far-red light treated during their germination. The initial rate to the second day after sowing were higher under red light and darkness treated during germination than under the two other lights.
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KEYWORD
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Gourd, Germination, Drying, Germination temperature, Light quality
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