The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Comparison of Pesticide Residues in Perilla Leaf, Lettuce and Kale by Morphological Characteristics of Plant

형태적 특성이 다른 들깻잎, 상추, 케일 중 농약 잔류량 비교

  • Son, Kyeong-Ae (National Academy of Agricultural Science, Rural Development Administration) ;
  • Im, Geon-Jae (National Academy of Agricultural Science, Rural Development Administration) ;
  • Hong, Su-Myeong (National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Jin Bae (National Academy of Agricultural Science, Rural Development Administration) ;
  • Ihm, Yang Bin (National Academy of Agricultural Science, Rural Development Administration) ;
  • Ko, Hyeon Seok (Rural Development Administration) ;
  • Kim, Jang Eok (A School of Applied Bioscience, pplied Biology and Chemistry Division, Kyungpook National University)
  • Received : 2012.11.04
  • Accepted : 2012.11.30
  • Published : 2012.12.31
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Abstract

This study was carried out in order to compare the residue levels of pesticides among lettuce, kale and perilla leaf depending on the morphological characteristics of plant. Residue levels were investigated at the zero, second, fifth days after last application, 9 species of systemic or non-systemic pesticide were twice applied with 7 days interval by knapsack power sprayer with 2 heads fan shape nozzle. Ratios of leaf area to weight ($cm^2$ $g^{-1}$) were 58 of perilla leaf, 27 of lettuce and 23 of kale. Ratios of leaf area to weight of perilla leaf was 2.1 times higher than that of lettuce. Residue levels of perilla leaf were 1.3 to 2.3 times higher than those of lettuce at the day of spraying and 1.3 to 3.3 times higher at the fifth day. Therefore the differences of pesticide residues between perilla leaf and lettuce were affected by the ratio of leaf area to weight. Residue levels in lettuce were 2.4 to 7.3 times higher than those in kale at the day of spraying because the adhesive effect of pesticide particles on kale leaf was low.

본 실험은 엽채류 중 들깻잎, 상추, 케일에 살포된 농약의 잔류량을 비교하기 위해 수행하였다. 농약 9종을 대상으로 2구 선형노즐을 부착한 배부식 동력분무기로 7일 간격 2회 살포 후 0, 2, 5일의 잔류양상을 조사하였다. 무게 대비 엽면적 비율($cm^2/g$)은 들깻잎 58, 상추 27, 케일 23 으로 나타나 들깻잎이 상추 보다 2.1배 높았다. 살포 직후 잔류량은 들깻잎이 상추 보다 1.3~2.3배 높게 나타났으며 케일은 상추보다 2.4~7.3배 높았다. 살포 후 5일에는 들깻잎이 상추 보다 1.3~3.3배 많았으며 상추는 케일보다 5.6~28.1배 높았다. 케일의 잔류량이 적은 것은 잎 표면이 매끄러워 살포된 농약입자가 쉽게 흘러내리는 것이 원인으로 보인다. 상추와 들깻잎의 잔류량 차이는 무게 대비 엽면적 비율의 차이에 따른 영향이 크다고 판단되었다.

Keywords

References

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