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Detectability of phenoxy herbicides by chlorophyll fluorescence
Authors:Árpád Nosticzius
Institution:PANNON Agricultural University , Mosonmagyaróvár Vár 2, H‐9200
Abstract:Abstract

Trace amounts of 2,4‐D ‐ which does not cause visible damage in plant ‐ are detectable in plant leaves by chlorophyll fluorescence regeneration in two ways. (I) In illuminated leaves the level of first and second fluorescence peak differ in treated and untreated leaves. (2) By taking buffer solution (pH=8.6) in dark‐adapted leaves under vacuum, the first, second and the other fluorescence decrease levels differ in untreated and 2,4‐D or MCPA treated leaves.
Keywords:detectability of 2  4‐D  phenoxy herbicides  regeneration of chlorophyll fluorescence
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