• Plant Biotechnology Reports
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• 제2권3호
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• pp.191-198
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• 2008

Germplasm characterization and evolutionary process in viable populations are important links between the conservation and utilization of plant genetic resources. Here, an investigation is made, based on molecular and biochemical techniques for assessing and exploiting the genetic variability in germplasm characterization of taro, which would be useful in plant breeding and ex situ conservation of taro plant genetic resources. Geographical differentiation and phylogenetic relationships of Indian taro, Colocasia esculenta (L.) Schott, were analyzed by random amplified polymorphic DNA (RAPD) and isozyme of seven enzyme systems with specific reference to the Muktakeshi accession, which has been to be proved resistant to taro leaf blight caused by P. colocasiae. The significant differentiations in Indian taro cultivars were clearly demonstrated by RAPD and isozyme analysis. RAPD markers showed higher values for genetic differentiation among taro cultivars and lower coefficient of variation than those obtained from isozymes. Genetic differentiation was evident in the taro accessions collected from different regions of India. It appears that when taro cultivation was introduced to a new area, only a small fraction of genetic variability in heterogeneous taro populations was transferred, possibly causing random differentiation among locally adapted taro populations. The selected primers will be useful for future genetic analysis and provide taro breeders with a genetic basis for selection of parents for crop improvement. Polymorphic markers identified in the DNA fingerprinting study will be useful for screening a segregating population, which is being generated in our laboratory aimed at developing a taro genetic linkage map.

• 한국토양비료학회지
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• 제49권4호
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• pp.388-392
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• 2016

The objectives of fertilizer recommendation are to prevent the application of excessive fertilization and to produce target yields. Also, optimal fertilization is important because crop quality can be influenced by fertilization. In this study, yields and fertilizer use efficiency of Taro (Colocasia esculenta Schott) were evaluated in different level of NPK fertilization. N, P and K fertilizer application rates were 5 levels (0, 50, 100, 150, 200%) by practical fertilization ($N-P_2O_5-K_2O=180-100-150kg\;ha^{-1}$), respectively. In the N treatment, the yields of Taro tuber were about $33Mg\;ha^{-1}$ from 90 to $360kg\;ha^{-1}$ N fertilization. However, the ratio of tuber to total biomass decreased with increasing N fertilization rate. In the P and K treatments, yields of Taro tuber were the highest at $150kg\;ha^{-1}$ fertilization. Fertilizer use efficiency was decreased by increase of N and K fertilization. Crude protein of Taro tuber was the highest at practical fertilization. Sucrose content of tuber was influenced by phosphate application.

• 한국자원식물학회지
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• 제15권3호
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• pp.293-297
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• 2002

약용과 식용으로 이용이 가능한 구황작물인 토란을 활성탄(Activate Charcoal)을 시용하여 재배할 경우 생산성을 높일 수 있을 것으로 기대되어 본시험을 수행한 결과는 다음과 같다. 활성탄시용에 따른 토란의 생장은 활성탄처리가 무처리에 비하여 엽장이 크고, 엽병속수가 많아 생육이 양호하였으며, 특히 활성탄 10%∼20％가 첨가되었을 때 효과가 인정되었다. 또한 지하부의 생장에서도 활성탄10%∼20%처리가 주당 괴경수가 많고 괴경중이 무거워 양호한 경향이었다. 한편 괴경(槐莖)의 수량과 부산물인 엽병(葉柄)의 수량은 활성탄 10%∼20%처리가 생육이 양호하여 증수되었다. 이상과 같은 결과로 보아 토란을 재배할 경우 활성탄의 효과가 인정되어 앞으로 작물의 종류에 따른 농도별 시험이 계속적으로 이루어 져야 할 것으로 사료된다.

• The Plant Pathology Journal
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• 제20권2호
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• pp.135-141
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• 2004

A filamentous virus was isolated from taro (Colocasia esculenta Schott) showing mosaic and chlorotic feather-ing symptoms in Chuncheon, Gangwon province in 2002. Based on ELISA, its appearance in electron microscope, serological relationships, and RT-PCR using specific primer and nucleotide sequence analysis of the CP gene, the isolated virus was identified as Dasheen mosaic virus (DsMV) and designated as Korean isolated (DsMV-Kr). DsMV was not serologically related to Zantedeschia mosaic virus (ZaMV), which has been reported to infect an Araceae plants. Since the coat protein revealed electrophoretic heterogeneity, about 42 kDa, 39 kDa and 31 kDa by SDS-PAGE, an improved purification method was established for the production of antisera against DsMV-Kr. The purification method used in this study may be effectively applied to the purification of other filamentous viruses.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2001년도 추계정기 학술발표회 초록집
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• pp.64-64
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• 2001

• 한국자원식물학회지
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• 제5권2호
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• pp.129-137
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• 1992

In order to investigate the Possibility of utilizing corm as a seed corm In taro, the corm classified by the weight was planted on April 20, 1984. The effect of weight of corm (30, 50, 70, 90, 110, 130150r and 170g) on the growth, yield, and quality of taro was compared to those raised from cornel.The corm showed a better emergence rate than cermets regardless of its size. The larger the size ofcorm wasi the more the number of leaves developed, and the fisher the yield was. It was consideredthat the higher yield and better quality of taro was obtained by using larger corm as a mother corm( in the following year) due to the increase in the production of large taros.

• 한국식품영양과학회지
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• 제33권6호
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• pp.1013-1016
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• 2004

토란으로부터 polyphenol oxidase를 추출하여 Maillard reation products(MRPs)가 토란 PPO에 미치는 영향을 조사하였다. 토란 PPO에 대한 MRPs의 저해 효과는 사용한 기질이 (+)-catechin, catechol인 경우에 높게 나타났다. 그리고 MRPs의 토란 PPO 저해 효과는 당의 종류를 달리하여 생성한 MRPs 중에서 fructose와 glucose로 제조한 MRPs의 첨가시 가장 높았으며, glycine과 glucose의 농도가 높아질수록 저해 효과가 증가하였다. 반응 시간에 따른 MRPs의 저해 효과를 조사한 결과, 반응 시간이 길어질수록 MRPs의 변색 정도가 높아졌으며, 이에 따라서 토란 PPO에 대한 저해 효과도 증가하였다.

• The Korean Journal of Ecology
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• 제27권1호
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• pp.21-26
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• 2004

Understanding farmer household and community management of crop diversity is necessary in order to effectively strengthen the local plant genetic resources management system in Vietnam, Assessment and management for distribution of farmer's cultivars of rice, taro and tropical tree species were conducted in four different agro-ecological zones in Vietnam using participatory approaches, focus surveys, diversity fairs, agro-morphological field trials, isozyme analysis to understand why Vietnamese farmers grow diverse types of these crop cultivars, when and where these crops cultivars are grown and how farmers maintain and use them. Results showed significant differences in the extent, distribution and use pattern crop cultivars diversity in contrasting environments and between community farmer households. Seed system is an important role in the access and use of diversity in eco-geographical regions.

• 한국독성학회:학술대회논문집
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• 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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• pp.54-55
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• 2001

The Maori people were early New Zealand settlers of Polynesian descent. The incidence of non-infectious diseases appears to have been low in these people, perhaps in part due to the presence of protective chemical constituents within their food plant supply. Three of the tropical crops they introduced are still eaten here today: the sweet potato of kumara (Ipomoea batatas), the taro (Colocasia esculenta) and the cabbage tree or ti (Cordyline terminalis).(omitted)

• 한국독성학회:학술대회논문집
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• 한국독성학회 2001년도 International Symposium on Effects of Edible Phytochemicals and Their Synthetic Derivatives on Carcinogenesis and Mutagenesis
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• pp.11-12
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• 2001

The Maori people were early New Zealand settlers of Polynesian descent. The incidence of non-infectious diseases appears to have been low in these people, perhaps in part due to the presence of protective chemical constituents within their food plant supply. Three of the tropical crops they introduced are still eaten here today:the sweet potato of kumara (Ipomoea batatas), the taro (Colocasia esculenta) and the cabbage tree or ti (Cordyline terminalis).(omitted)