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Use of Phenolic Foam as a Medium for Production of Plug Seedlings of Paprika

Phenolic Foam 배지를 이용한 파프리카의 플러그묘 생산

  • Received : 2011.08.24
  • Accepted : 2011.11.04
  • Published : 2012.02.29

Abstract

The study was conducted in a glasshouse to examine the possibility of producing paprika plug seedlings in a newly developed inert phenolic foam growing medium. Plug seedlings of 'Fascinato' paprika were grown in five media, Grodan rockwool (Grodan Co. Ltd., Denmark), UR rockwool (UR Co. Ltd., Korea), phenolic foam LC (Smithers Oasis Korea Co. Ltd., Korea), phenolic foam RC, and phenolic foam 3813-4 all in a pellet type. Seeds were germinated in a growth chamber ($25^{\circ}C$, 90% RH, dark) for 4-5 days and then seedlings were grown in a glasshouse with nutrient solution supplied by an overhead irrigation system. Seedling growths were measured 20 days after sowing. The medium pH was the highest in the Grodan rockwool, and medium EC was the highest in phenolic foam 3813-4, although no nutritional excess disorders were observed. Germination rates of paprika were higher than 90% in all the media. Plant height, stem diameter, T/R ratio, leaf area, and chlorophyll showed a similar to those in the rockwool medium. Number of leaves, length of the longest root and dry weights of shoot were not significantly different among treatments. Overall, phenolic foam LC and RC produced seedlings with a similar growth as the rockwool medium. The results obtained suggest that rockwool can be replaced with a new material such as phenolic foam in the commercial scale production of plug seedlings of 'Fascinato' paprika.

Keywords

growing medium;pellet;rockwool

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Cited by

  1. Irrigation Method of Nutrient Solution Affect Growth and Yield of Paprika 'Veyron' Grown in Rockwool and Phenolic Foam Slabs vol.31, pp.2, 2013, https://doi.org/10.7235/hort.2013.12179

Acknowledgement

Supported by : 농림수산식품부