Premium
Unterschiedliche Toxizität von Simazin und Diuron bei Torilis arvensis und Lolium rigidum
Author(s) -
PRADO R.,
SCALLA R.,
GAILLARDON P.
Publication year - 1990
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1990.tb01705.x
Subject(s) - lolium rigidum , simazine , mentha arvensis , biology , lolium , botany , photosynthesis , agronomy , weed , poaceae , pesticide , atrazine , herbicide resistance , essential oil
Summary: In a soil application, Torilis arvensis was nearly as susceptible as Lolium rigidum to simazine but was 18‐fold more tolerant to diuron. Treat ment with diuron inhibited photosynthesis in L. rigidum but had only a limited effect in T. arvensis although chloroplasts isolated from both species displayed similar susceptibility. 14 C‐diuron degradation in plants was limited, with the formation of conjugates of mono‐methyl‐diuron in T. arvensis and N ‐dealkylated derivatives of diuron in L. rigidum . 14 C‐diuron entered the roots and was translocated throughout the leaves of L. rigidum but was restricted to stems, leaf petioles and leaf veins of T. arvensis . This difference in transport pattern is proposed to explain the tolerance of T. arvensis to diuron.