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Effects of oxadiargyl on direct‐seeded rice and Echinochloa crus‐galli under aerobic and anaerobic conditions
Author(s) -
Gitsopoulos T K,
FroudWilliams R J
Publication year - 2004
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.1365-3180.2004.00407.x
Subject(s) - echinochloa , echinochloa crus galli , anaerobic exercise , seeding , sowing , agronomy , chemistry , biology , weed , physiology
Summary Dose–response experiments were conducted in glasshouse pot experiments to investigate the selectivity of oxadiargyl, a recently introduced herbicide, in direct‐seeded rice under both aerobic and anaerobic conditions. Crop sensitivity to oxadiargyl was comparatively greater for wet‐seeded (anaerobic) than for dry‐seeded rice (aerobic). Likewise, greater efficacy against Echinochloa crus‐galli (L.) was also observed under anaerobic conditions. These results indicate greater activity of oxadiargyl under anaerobic conditions, but that application pre‐sowing with subsequent flooding would reduce selectivity in wet‐seeded rice. The results are discussed in relation to rice production in Mediterranean agriculture.