In-Soo Choi

Effect of Physical, Chemical Properties and of Pelleting Solid Materials on the Germination in Pelleted Carrot Seeds

Seed pelleting is generally conducted in order to save the labor for sowing and thinning by enabling the precision mechanical planting. In the present study, the influence of physical and chemical properties of pelleting solid materials was investigated on carrot seed germination. Among the pelleting solid materials evaluated, dialite, kaolin, and talc showed low bulk density and high porosity. Bentonite and dialite carried high water holding capacities of 184% and 173%, respectively, while calcium carbonate, calcium oxide, and fly ash showed relatively low water holding capacity. The pH of kaolin (6.8) and dialite (7.4) were close to neutral, while limestone (12.8), calcium oxide (13.0), and bentonite (10.0) were highly basic. High electro-conductivity was shown in limestone and calcium oxide. EDS analysis revealed that the main elemental compositions of talc were Si (71.0%) and Mg (29.0%), and those of calcium carbonate were Ca (66.6%), Si (22.9%), and Mg (10.5%). High granulation capacity was observed from talc and the mixture of talc and calcium carbonate. Seeds pelleted with bentonite showed the highest hardness. The dissolving type of the pellet layer after imbibition was split type in talc, limestone, zeolite, and fly ash, melt type in calcium carbonate and calcium oxide, and swell type in bentonite and vermiculite. The shortest dissolving time of pellet layer was observed from calcium carbonate and kaolin. The germination speed (T 50 ) was delayed as the size of pelleted seeds increased. The optimum size of pelleting was 19 ratio in carrot.

Effect of Lignans from Schisandra chinensis Baillon on Seed Germination in Pepper

오미자의 헥산 추출물로부터 dibenzocyclooctadiene류인 schisandrin 1143.7 mg, schisandrin C 317.3 mg, gomisin A 261.4 mg 및 gomisin N 213.4 mg을 순수분리하여 구조를 동정하였다. 각각의 리그난은

Effect of Seed Priming on the Enhancement of Seed Germination in Cool Season Turfgrass

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Studies on HG Type of Heterodera glycines in Korea

-NMR,

Plant Parasitic Nematodes in Soybean in Korea and Their Importance Rating

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Proteomics of ionic stresses in rice: An overview

-NMR 및 GC-MS 스펙트럼으로부터 구조를 동정하였다. 오미자로부터 분리한 schisandrin, schisandrin C, gomisin A 및 gomisin N을

Resistance of Sesame and Perilla Cultivars to Meloidogyne arenaria and M. incognita in Korea

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Screening of Tissue Papers for Nematode Extraction for the Baermann Funnel Method

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Effect of Density of Helicotylenchus dihystera on Growth of Solanum lycopersicum

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Resistance of Soybean Cultivars to Heterodera glycines HG type 2.5 in Korea

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