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朴章炫(Jang-Hyun Park),金冑,禧(Ju-Hee Kim),崔炯局(Hyung-Koog Choi),金台錫(Tae-Shok Kim),金正云(Joung-Woon Kim),金廣植(Kwang-Sik Kim) 한국차학회 1995 한국차학회지 Vol.1 No.1
This study was carried out to investigate growth characteristics, and the contents of mineral element, Tannin, Caffeine and Vitamin C of leaves of 16 wild and cultivated varieties in southernt part of Korea. Results of this investigation are summarized as follows. The most of the wild tea plants were in bamboo thicket or in forest, and the leaf types of tea plants were elliptical or oblong. The leaf sizes of tea plants were 8.2± 1.8× 3.8± 0.8cm, lateral vein number 5.7, crenated number 60.7, and the leaf colors of tea plants were thin green or dark green. The content of total-nitrogen in the culture varieties was 1% lower, but those of P, K, Ca, Mg were higher than wild varieties, The content of Tannin at Naju-Shi was the highest as 15.05%, and that of Hampyong-gun was the lowest as 11.25%. The average content was 14%. The content of caffeine in the wild varieties was a few higher and that of the average was 2.4%. The content of Vitamin C at Kangjin-gun was the highest as 245.8mg% and that of Yangsan-gun was the lowest as 152.9mg%.
茶種子 發芽에 關한 硏究 : 採種時期와 溫度 處理가 茶種子의 發芽에 미치는 影響
趙慶淑(Kyoung Sook Cho),房極必(Guk Pil Bang),金正云(Joung Woon Kim),金冑禧(Ju Hee Kim),崔炯局(Hyoung Koog Choi) 한국차학회 1995 한국차학회지 Vol.1 No.1
This experiment was conducted to find out tea seed germination by six tea seed picking periods from September 5 to November 25 at intervals of twenty days. Low temperature treatment did cold moist prechilling storage for 30 days at 0, 5, 10˚C and then germinated at 20˚C. The normal temperature germinated respectively at 15, 20, 25 and 30˚C. Tea seed optimum germination temperature was between 20˚C~25˚C. Cold moist prechilling effect(Storage 30 days at 5, 10˚C) was not only shorter germination period but germination percentage was increased too. In case of doing cold moist prechilling, during the period of September 25 to November 5 between ±20 days from October 15 of optimum picking period could expect high rate of the germination more than 90%.