[논문]The Effects of Environmental Conditions and Chemical Treatments on Seed Germination in Astilboides tabularis (Hemsl.) Engl.

Cho, Ju Sung; Jeong, Jeong Hak; Lee, Cheol Hee

doi:10.12972/kjhst.20160037

The Effects of Environmental Conditions and Chemical Treatments on Seed Germination in Astilboides tabularis (Hemsl.) Engl. 원문보기

원예과학기술지 = Korean journal of horticultural science & technology, v.34 no.3, 2016년, pp.363 - 371

Cho, Ju Sung (Department of Horticultural Science, Chungbuk National University) , Jeong, Jeong Hak (Department of Horticulture and Breeding, Andong National University) , Lee, Cheol Hee (Department of Horticultural Science, Chungbuk National University)

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Tabulis [Astilboides tabularis (Hemsl.) Engl.] has the potential for becoming a useful horticultural crop. This study was conducted to classify the seed dormancy types and to identify the germination conditions that improve the horticultural usefulness of this plant. We found that A. tabularis (Hemsl.) Engl. produced undifferentiated embryos and had a low germination rate of under 50%. In addition, water submersion led to moisture absorption. Therefore, A. tabularis seeds were designated as morphologically dormant. The germination rate was highest (86.3%) at $30^{\circ}C$ under light conditions. Higher temperatures generally led to an acceleration of the germination process, regardless of light condition. To improve the germination rate, seeds were submerged in various concentrations of growth regulators, such as $GA_3$ and kinetin, as well as minerals such as $KNO_3$ and KCl. An analysis of germination characteristics at $30^{\circ}C$ under light conditions revealed that treatment with 200 and $500mg{\cdot}L^{-1}GA_3$ led to an excellent germination rate of 97.0%. Treatment with $100mg{\cdot}L^{-1}GA_3$ led to a better germination rate than the control as well. However, treatment with kinetin, $KNO_3$, and KCl had no effect on germination, regardless of concentration.

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제안 방법

Baskin and Baskin (2004a, 2004b) and Nicolaeva (2001) were referenced for classification of seed dormancy type. The final analyses were based on (among other methods) embryo observations in seeds, immediate sowing upon collection, and detecting any difficulties with the seed coat in terms of moisture absorption.

대상 데이터

A. tabularis seeds were collected around Gangwon-do in July of 2012, cleaned to remove impurities, and dried indoors for 24 hours. Well-selected seeds were placed into a sealed zipper bag with silica gels (Mr.

데이터처리

Duncan’s multiple range test in SAS version 9.3 (SAS Institute Inc., Cary, NC, USA) was used to establish statistical significance at the p < 0.05 level.

성능/효과

Consequently, the effects of GA₃ and KNO₃ on germination acceleration were confirmed in the seeds of A. tabularis, while kinetin and KCl had little effect. These results help confirm the notion that the effects of growth regulators and minerals on germination vary by species and concentration.
, 2007). Embryo development status was distinguished by criteria such as whether the cotyledon was differentiated or developed but not differentiated and whether the embryo was immature or non-existent.
In this study, seeds of A. tabularis were confirmed to have a developed and undifferentiated embryo (Fig. 1) and low germination rate below 50%. Seven days of soaking allowed the seeds to reach the maximum moisture content (Fig.
Seeds of A. tabularis were classified as MD in this study, and the best germination rate was obtained at 30°C under light conditions, confirming the characteristics of plants native to temperate regions.
The moisture content of the seeds was 15.4%, which reached a maximum of 56.4% within 24 hours and maintained a similar level for 7 days (Fig. 2).

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The Effects of Environmental Conditions and Chemical Treatments on Seed Germination in Astilboides tabularis (Hemsl.) Engl. 원문보기

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The Effects of Environmental Conditions and Chemical Treatments on Seed Germination in Astilboides tabularis (Hemsl.) Engl. 원문보기

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