Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Response of Growth and Photosynthesis of Pepper Seedlings to Potassium Fertilizer

칼리처리가 고추 플러그묘의 생육과 광합성에 미치는 영향

  • Ahn, Chong-Kil (Department of Horticulture, Miryang National University) ;
  • Son, Beung-Gu (Department of Horticulture, Miryang National University) ;
  • Kang, Jum-Soon (Department of Horticulture, Miryang National University) ;
  • Lee, Yong-Jae (Department of Horticulture, Miryang National University) ;
  • Chang, Min-Kyu (Department of Horticulture, Miryang National University) ;
  • Son, Kil-Woo (Department of Horticulture, Miryang National University) ;
  • Park, Yaung-Hoon (Department of Horticulture, Miryang National University) ;
  • Choi, Young-Whan (Department of Horticulture, Miryang National University)
  • Published : 2003.03.01
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Abstract

Experiments were conducted to estimate optimal potassium strength in the nutrient solution for ‘Nokgwang’and‘Kwari’green pepper seedlings cultured in small plug-cell trays. Plant height, stem diameter, and leaf area increased with increasing K concentration, with greater effect on ‘Kwari’ than ‘Nokgwang’. Total dry weight increased by increasing potassium strength.‘Kwari’had heavier dry weight than ‘Nokgwang’Chlorophyll content differed by cultivars and potassium strength. The highest chlorophyll content was obtained at 2.0 strength potassium in‘Nokgwang’, but not in‘Kwari’Net photosynthesis was greater in plants fertilized with 1.5 strength potassium for‘Nokgwang’and 2.0 strength potassium for ‘Kwari’than the other treatments.

풋고추 플러그 육묘시에 칼리의 최적 시비농도를 구명하기 위하여 32구 플러그 트레이에 TK$_2$를 채운 다음 종자를 파종하여 칼리를 농도별로 처리하여 식물체의 생육과 광합성에 미치는 효과를 조사하였다. 초장, 줄기 직경, 엽면적 및 총 건물중은 K의 농도가증가할수록 생육이 촉진되었으며, ‘녹광’ 보다는 ‘꽈리’의 생육이 더 좋았다 품종과 K의 농도에 따라서 엽록소의 함량은 차이가 있었는데, ‘녹광’은 K의 농도가 2.0배까지 높을수록 증가하였으나 ‘꽈리’는 1.0배 이상의 농도에서는 차이가 거의 없었다 순광합성율은 ‘녹광’의 경우에는 1.5배의 농도에서 ‘꽈리’의 경우에는 2.0배의 고농도에서 가장 높았으며, 기공전도도와 수분증발율도 순광합성율과 비슷한 경향이었다.

Keywords

References

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