Browse > Article
http://dx.doi.org/10.5322/JESI.2021.30.8.605

Growth Characteristics and Yields According to EC Concentrations and Substrates in Paprika  

Hong, Youngsin (Department of Agricultural Engineering, National Institute of Agricultural Science, RDA)
Lee, Jaesu (Department of Agricultural Engineering, National Institute of Agricultural Science, RDA)
Baek, Jeonghyun (Department of Agricultural Engineering, National Institute of Agricultural Science, RDA)
Lee, Sanggyu (Department of Agricultural Engineering, National Institute of Agricultural Science, RDA)
Chung, Sunok (Department of Biosystems Machinery Engineering, Chungnam National University)
Publication Information
Journal of Environmental Science International / v.30, no.8, 2021 , pp. 605-612 More about this Journal
Abstract
Supply electrical conductivity (EC) concentration of the nutrition solution is an important factor in the absorption of nutrients by plants and the management of the root zone, as it can control the vegetative/reproductive growth of a plant. Paprika usually undergoes its reproductive and vegetative growth simultaneously. Therefore, ensuring proper growth of the plant leads to increased yield of paprika. In this study, growth characteristics of paprika were examined according to the EC concentration of a coir and a rockwool substrate. The supply EC was 1.0, 2.0, and 4.0 mS·cm-1 applied at the initial stages of the growth using the rockwool (commonly used by paprika farmers) and the coir substrate with a chip and dust ratio of 50:50 and 70:30. For up to 16 weeks of paprika growth, EC concentrations of 1.0 and 2.0 mS·cm-1 were found to have a greater effect on the growth than EC at 4.0 mS·cm-1. The normality (marketable) rate of fruit, the soluble solid content, and paprika growth showed that the coir was generally better than the rockwool regardless of the supply EC concentration. The values of the yield per plant at an EC concentration of 4.0 mS·cm-1 was mostly similar at 1.6 kg (coir 50:50), 1.5 kg (coir 70:30) and 1.5 kg (rockwool), but the yield of the rockwool was 88%, which was lower than 98% and 94% yield of the coir substrate. Therefore, this concludes that coir substrate is more effective than rockwool at improving paprika productivity. The results also suggest that the use of coir substrate for paprika has many benefits in terms of reducing production costs and preventing environmental destruction during post-processing.
Keywords
Capsicum annuum L.; Coir substrate; EC concentration; Growth characteristic; Smart greenhouse;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Milks, R. R., Fonteno, W. C., Larson, R. A., 1989, Hydrology of horticultural substrate:III. Predicting air and water content of limited-volume plug cells, J. American Soc. Hortic. Sci., 114, 57-61.   DOI
2 Cho, Y. H., Seo, K. W., Park, J. S., Jang, J. H., Kwon, S. H., Kim, C. S., Song, Y. J., Lee, J. T., 2015, Effect of EC concentrations on the early growth of seedling stage in sweet pepper using coir slab, Joural of Agriculture & Life Sciences, 46(2), 51-56.
3 Choi, K. Y., Ko, J. Y., Yoo, H. J., Choi, E. Y., Rhee, H. C., Lee, Y. B., 2014, Effect of cooling timing in the root zone on substrate temperature and physiological response of sweet pepper in summer cultivation, Kor. J. Hort. Sci. Technol., 32(1), 53-59.
4 Evans, M. R., Stamps, R. H., 1996, Growth of beding plants in sphagnum peat and coir dust-based substrates, J. Environ Hortic., 14(4), 187-190.   DOI
5 Gabriels, R., Verdonck, O., Mekers, O., 1986, Substrate requirements for pot plants in recirculating water culture, Acta Hortic., 178, 93-100.   DOI
6 Gosselin, A., Trudel, M. J., 1986, Root-zone temperature effects on pepper, J. Amer. Soc. Hort. Sci., 111(2), 220-224.   DOI
7 Ito, H., Kawai, S., 1994, Effects of watering control on the fruit qualities of tomato and cherry tomato, Res. Bull. Aichi Agri. Res. Center, 26, 191-199.
8 Kim, Y. B., Chung, S. J., Bae, J. H., 2005, Response of the photosynthetic rate and stomatal pore opening reaction on light condition of hydroponically grown sweet paper in winter, Kor. J. Hort. Sci. Technol., 23(Suppl. I), 35. (Abstr.)
9 Lee, J. H., Cha, J. C., 2009, Effects of removed flower on dry mass production and photosynthetic efficiency of sweet pepper cultivars 'Derby' and 'Cupra', Kor. J. Hort. Sci. Technol., 27, 584-590.
10 Lee, J. W., Kim, H. C., Jeong, P. H., Ku, Y. G., Bae, J. H., 2014, Effects of supplemental lighting of high pressure sodium and lighting emitting plasma on growth and productivity of paprika during low radiation period of winter season, Kor. J. Hort. Sci. Technol., 32(3), 346-352.
11 Nelson, P. V., 1991, Root substrate, in greenhouse operations and management. Prentice Hall, Upper Saddle River, New Jersey, USA, 198-223.
12 Ootake, Y., Ban, Y., Tanaka, Y., Hayashi, G., 1994, Changes of chemical constituents in tomato fruit in relation to soil moisture, Res. Bull. Aichi Agric. Center, 26, 209-212.
13 Baek, J. H., Hong, Y. S., Lee, H. D., Lee, S. G., Kwak, K. S., Kim, B. G., Kim, T. H., Rho, S. Y., Lee, J. S., 2019, Implemented data-based Korean smart greenhouse service using cloud computing, Prot. Horti. and Plant Fact, 23(Suppl. I), 566-567. (Abstr.)
14 Park, J. S., Tai, N. H., An, T. In., Son, J. E., 2009, Analysis of moisutre characteristics in rockwool slabs using Time Domain Reflectometry (TDR) sensors and their applications to paprika cultivation, J. Bio-Envir. Control, 18(3), 238-243.
15 Pressman, E., Moshkovitch, H., Rosenfeld, K., Shaked, R., Gamliel, B., Aloni, B., 1998, Influence of low night temperatures on sweet pepper flower quality and the effect of repeated pollinations, with viable pollen, on fruit setting, J. Hort. Sci. Biotech., 73(1), 131-136.   DOI
16 Kim, C. H., Lee, C. H., Kweon, O.Y., An, C. G., 2014, Effect of transplanting methods on growth and yield of paprika in coir culture, Protec. Horti. Plant Fact., 23(4), 281-187.   DOI
17 Rhee, H. C., Seo, T. C., Choi, G. L., Roh, M. Y., Cho, M. W., Kim, Y. C., 2011, Effect of water content in substrates as according to growth stage on the growth and yield of paprika in summer hydroponics, J. Bio-Envir. Control, 20(4), 258-262.
18 Rylski, I., Spigelman, M., 1982, Effects of different diurnal temperature combinations on fruit set of weet pepper, Sci. Hort., 17, 101-106.   DOI
19 An, C. G., Hwang, Y. H., Yoon, H. S., Shon, G. M., Lim, C. S., Cho, J. L., Jeong, B. R., 2009, Effects of irrigation amount in rockwool and cocopeat substrates on growth and fruitung of sweet pepper during fruiting period, Kor. J. Hort. Sci. Technol., 27(2), 233-238.
20 An, C. G., Hwang, Y. H., An, J. U., Yoon, H. S., Chang, Y. H., Shon, G. M., Hwang, S. J., Kim, K. S., Rhee, H. C., 2012, Effects of irrigation methods for reducing drainage on growth and yield of paprika(capsicum annuum coletti) in rockwool and cocopeat culture, J. Bio-Environ. Control., 21(3), 228-235.
21 Bakker, J. C., Uffelen, J. A. M. van., 1988, The effects of diurnal temperature regimes on growth and yield of sweet pepper, Neth. J. Agri. Sci., 36, 201-208.