• The Journal of the Convergence on Culture Technology
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• v.10 no.6
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• pp.849-853
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• 2024

This study was conducted from May 11 to June 20, 2024 to compare the growth of dwarf tomato according to light sources (White LED, Red + Blue LED) to select a light source suitable for urban agriculture. White LED (WH) and Red + Blue LED (RB) have differences in wavelength and total light intensity. Not only growth factors but also the number of fruits set and sugar content were significantly higher in WH than in RB. These results are thought to have been affected by the intensities of blue and red wavelengths, but they were determined to be influenced by the sum of all wavelength intensities (= total light intensity). Therefore, it is thought to be better to use WH with various wavelengths and high total light intensity for cultivation of tomato at home.

• 농업기술회보
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• v.51 no.4
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• pp.32-32
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• 2014

최근 들어 토마토를 교육용 소재로 이용하거나 가정에서 재배하고 싶어 하는 사람들이 많아지고 있다. 그러나 기존에 개발된 품종들은 대부분 줄기가 무한정으로 자라면서 열매가 달리는 무한형 품종으로 가정이나 학교 교실에서 재해하기에는 관리상 어려움이 많다. 국립원예특작과학원에서는 좀 더 작고 쉽게 누구나 재배할 수 있도록 초형을 유한형의 왜성으로 개량하고 관상용 가치도 있으면서 식용으로 이용할 수 있는 토마토를 개발하였다.

• Journal of Life Science
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• v.17 no.12
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• pp.1729-1733
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• 2007

Brassinolide insensitive associated receptor kinase 1(BAK1) is a critical component that play an important roles in signaling of brassinosteroid biosynthesis. Brassinosteroid-deficient and -insensitive mutants showed the characteristic of dwarf symptom. The nutrient deficient tomato showing stunt phenomenon was selected from soiless cultivation system using modified Sonneveld hydroponic solution. Twenty eight protein spots showing different expression levels compared to the control were isolated from extracts of stunted tomato leaves by 2D PAGE analyses. Significantly down-regulated 6 protein spots out of 28 protein spots were analyzed and sequenced by MALDI-TOF mass spectrometry. The protein spot having pI=4.5 and MW=24 kDa was identified as a signal protein, BAK1, which is directly related to brassinosteroid biosynthesis. In addition, five other protein spots were identified as BCK1, cystein proteinase, sulfutase, peroxidase and zinc finger factor respectively, and they were also signal proteins related to brassinosteroid biosynthesis. Furthermore, amplification of 500bp of BAK1 mRNA by RT-PCR using a primer set of peptide matched regions was inhibited conpared to that of the wild type. The results sugested that the BAK1 might be regulated at the transcription level in response to nutrition applications.