• Journal of Bio-Environment Control
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• v.16 no.3
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• pp.222-227
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• 2007

In this study, nutrient solution for Liliaceae (Chinese chive) leafy vegetable was developed. The various strength (1/2, 1 and 3/2) of nutrient solution recommended by National Horticultural Research Institute (NSH) was applied to the crops in deep flow technique (DFT) system for 42 days. The growth of Chinese chive were highest in the treatment of 1/2 strength. The proper constitution of nutrient solution developed for liliaceae crops (NSL) was N 12, P 2.5, K 7, Ca 4 and Mg 2 met. The crops were grown two times in March and September to examine the appropriateness of the NSC. As a result, the relative growth rate and the amount of chlorophyll (SPAD value)of Chinese chive treated with NSL were increased 1.11 times. The most important nutrient factor of ascorbic acid were also increased 1.16 times.

• Korean Journal of Agricultural Science
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• v.17 no.1
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• pp.18-25
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• 1990

The above results indicate that vegetable crop production using vinyl houses continously increases. However, technical support and facility improvement are still insufficent to establish a full production system. In order to improve the cultural environment in facilities for better vegetable culture, several facters should be considered. 1. Facility design and arrangement should be made to improve micro-environments for crop growth and development because direction of facility and covering materials can affect the amount of light trasmitted into vinyl houses. 2. Cultivation of several leading varieties in each crop may not provide stable production and profit especially under undesirable environmental conditions. Thus, it is required to grow not only leading varieties but also other cultivars to decrease the economic losses. 3. Crops should be carefully managed when planted in early season not to experience low temperatures which induce growth retards. Early season cultivation requires proper selection of cultivars which are resistant to low temperture. 4. Active control of micro-environment in facilities should be made via improving the ventilation and irrigation systems.

• Journal of the Korean Society of Food Culture
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• v.1 no.2
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• pp.167-170
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• 1986

The first historical record on the use of wild edible plants as foods in Korea involves sswuk and manul concerned with the mythology of Tangun. Numerous names of wild vegetables had been recorded in various ancient books. Wild edible plants are of great value as food resources and for domestication, since they have variable edible portions and quite a long picking season. Several kinds of wild edible plants have been already grown as vegetable crops. Doragi (Platycodon grandiflorum) is probably the one with the longest history of cultivation. During World War II, an attempt had been made to substitute vegetable crops for wild edible plants. As picking wild greens requires a great deal of labor and plants of wild growth are limited in the amount, domestication of wild vegetables as crops appears to be an urgent need for securing food resources in Korea.

• Proceedings of the Korean Society of Plant Pathology Conference
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• 1999.10a
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• pp.51.2-51
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• 1999

• Journal of Climate Change Research
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• v.7 no.2
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• pp.193-203
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• 2016

The importance of forecasting agricultural production is receiving attention while climate change is accelerating. This study suggested three types of crop yield forecasting model for major vegetable crops by using downscaled meteorological information of main production area on farmland level, which identified as limitation from previous studies. First, this study conducted correlation analysis with seven types of farm level downscaled meteorological informations and reported crop yield of main production area. After, we selected three types of meteorological factors which showed the highest relation with each crop species and regions. Parameters were deducted from meterological factor with high correlation but crop species number was neglected. After, crop yield of each crops was estimated by using the three suggested types of models. Chinese cabbage showed high accuracy in overall, while the accuracy of daikon and onion was quiet revised by neglecting the outlier. Chili and garlic showed differences by region, but Kyungbuk chili and Chungnam, Kyungsang garlic appeared significant accuracy. We also selected key meteorological factor of each crops which has the highest relation with crop yield. If the factor had significant relation with the quantity, it explains better about the variations of key meteorological factor. This study will contribute to establishing the methodology of future studies by estimating the crop yield of different species by using farmland meterological information and relatively simplify multiple linear regression models.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.23 no.3
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• pp.73-82
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• 1978

Researches on weed control in vegetable and fruits are reviewed in the aspects of technical dissemination of research results and problems to be solved for the establishment of integrated weed control measures. The future researches in relation to the possible changes of cultivation pattern in horticultural crops are also discussed. The current situation of weed control in horticulture in general is classed as a primitive stage comparing to other food crops and is well behind of other advanced countries. It is strongly suggested that only steady and extensive researches in this field will produce a significant contribution to the minimization of labor cost in horticultural crop production.

• Journal of Bio-Environment Control
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• v.29 no.4
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• pp.456-463
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• 2020

This research was conducted to examine the changes in yield and difference in growth, using rootstocks in tomatoes as the growth indicators. Seedlings of tomato 'Gama', were used as scion and non-grafted control, while 4 different grafted tomatoes 'Powerguard', 'T1', 'L1', and 'B.blocking' were used as rootstocks. The non-grafted and grafted plants were grown in hydroponics for long-duration cultivation under plastic greenhouse conditions. The total yield of grafted tomato 'Powerguard' and non-grafted tomato 'Gama' were 8,428 g and 7,645 g, respectively. The flowering position of grafted plants 'B.blocking' and non-grafted plants at the latter period were 17.58 cm and 14.92 cm, respectively. The results showed that the yield and the balance of the plant were improved until the end of the harvest by grafting. The difference in yield between non-grafted and grafted tomatoes was evident in the 19th cluster, 236 days after planting. Therefore using rootstocks could be advantageous for long-duration cultivation in tomatoes.

• Proceedings of the Botanical Society of Korea Conference
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• 1994.09a
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• pp.89-109
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• 1994

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2000.10a
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• pp.46.1-46
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• 2000

• Journal of Plant Biology
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• v.16 no.1_2
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• pp.39-50
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• 1973

The spontaneous and induced reciprocal translocations of chromosomes in higher plants were reviewed and discussion was made on the utilization of this chromosome aberration in the production of seedless hybrid seeds in vegetable crops.