Open AccessRelationship between relative time of emergence of Tartary buckwheat (Fagopyrum tataricum) and yield loss of barley
Author(s) -
John T. O’Donovan,
A. S. McClay
Publication year - 2002
Publication title -
canadian journal of plant science/canadian journal of plant science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.338
H-Index - 59
eISSN - 1918-1833
pISSN - 0008-4220
DOI - 10.4141/p02-042
Subject(s) - fagopyrum tataricum , fagopyrum , hordeum vulgare , weed , yield (engineering) , agronomy , mathematics , biology , botany , poaceae , rutin , biochemistry , materials science , metallurgy , antioxidant
A nonlinear regression model was used to describe the relationship between Tartary buckwheat [Fagopyrum tataricum (L.) Gaertn.] density and relative time of emergence, and yield of barley (Hordeum vulgare L.). Yield loss increased the earlier the weed emerged relative to the crop. The model is being used in computerized decision support systems for weed management in western Canada. Key words: Fagopyrum tataricum, Hordeum vulgare, nonlinear regression model, relative time of emergence, decision support system