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Control of barnyardgrass and yellow foxtail by herbicides in relation to the sucrose content of the seedling leaves
Author(s) -
MARRIAGE P. B.,
SAIDAK W. J.
Publication year - 1974
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.1365-3180.1974.tb01504.x
Subject(s) - foxtail , sucrose , seedling , setaria , setaria viridis , biology , agronomy , photosynthesis , sowing , horticulture , botany , weed , food science
Summary: The ability of triazine and urea herbicides to reduce the sucrose level of seedlings of barnyardgrass ( Echinoehloa crusgalli (L.) (Beauv.) and yellow foxtail ( Setaria Iutescens (L.) Beauv.) was compared with their effectiveness in controlling these weeds by pre‐emergence application to maize. In 2 years out of 3 a significant positive correlation was obtained between the sucrose content of the third leaf and the number of these grasses on the field plots 2 months after planting. The regression of number of grasses on sucrose content for the combined treatments of 3 years was also significant indicating that, in general, control of grasses is improved as the inhibition of photosynthesis in the seedlings is increased.