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http://dx.doi.org/10.12791/KSBEC.2013.22.1.001

Effect of Mixture Media of Red Clay and Peatmoss on Quality and Drainage Solution in Hydroponics of Solanum lycopersicum 'Mascara'  

Na, Taek Sang (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Choi, Kyong Ju (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Yoon, Bong Gi (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Cho, Myoung Soo (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Kim, Hee Gon (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Kim, Hyo Joong (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Son, Dong Mo (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service)
Yoo, Yong Kweon (Department of Horticultural Science, College of Natural Science, Mokpo Nat'l Univ.)
Publication Information
Journal of Bio-Environment Control / v.22, no.1, 2013 , pp. 1-6 More about this Journal
Abstract
This study was conducted to examine the effects of coir, peatmoss, and red clay (20%) + peatmoss (80%) media on quality and drainage solution in hydroponics of Solanum lycopersicum 'Mascara'. The tomato seedlings were planted in media on 29 April, and supplied with Yamazaki's tomato solution of EC $2.0dS{\cdot}m^{-1}$ and pH 6.5. Tomato fruits were harvested from 13 June to 24 August. Drainage amount decresed when solar radiation and air temperature were high. However, drainage amount were not different among coir, peatmoss, and red clay + peatmoss media. The EC of drainage in red clay + peatmoss medium was higher than that in other media during the cultivation period. Also, soild state and available moisture content was more in red clay + peatmoss mediun than in coir or peatmoss media. The soluble solids of tomato fruits increased by 10~17% at $5.5^{\circ}Brix$ in red clay+peatmoss medium compared with $5.0{\sim}4.7^{\circ}Brix$ in coir or peatmoss media. Also, the acidity of fruits was the highest to 0.66% in red clay + peatmoss medium than the others. The total yield of fruits in red clay + peatmoss medium increased significantly by 9.1% at 8,428 kg than at 7,725 kg in peatmoss medium, and ratio of marketable yield was higher than the other media. Therefore, red clay (20%) + peat moss (80%) medium is recommend for growth and quality of fruits in hydroponics of Solanum lycopersicum 'Mascara'.
Keywords
available moisture content; marketable yield; soluble solids; tomato; total yield;
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