Induction of Root Browning by Chloramine in Lactuca sativa L. Grown in Hydroponics.

DOI NDL Digital Collections JASI Web Site Web Site 4 Citations 11 References

Bibliographic Information

Other Title
  • 水耕栽培におけるクロラミンにより発生するサラダナの根部褐変

Search this article

Abstract

The cause of root browning (RB) in Lactuca sativa L. root, which often occurs in hydropoincs when a nutrient solution is prepared with tap water, was investigated. The induction of RB occurred only when plants were cultured in the solutions containing both hypochlorous acid (HOCl) and ammonium ion (NH4+), but not in the solutions contained either HOCl or NH4+ alone. The addition of NaOCl (HOCl) followed by NH4H2PO4 (NH4+) solution after a 7-10 day storage or NH4H2PO4 followed by NaOCl solution induced no RB symptom. It was concluded that RB was induced by chloramine, a reaction product between HOCl and NH4+. Dechlorination of nutrient solutions was promoted in the presence of the iron ion in the solution under light conditions.

Journal

Citations (4)*help

See more

References(11)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top