Penetration of ¹⁴C-labeled plant growth regulators into the surface of apple
(Malus pumila M.) leaves pre-soaked in 10 ml I⁻¹ solutions of surfactant was
measured by detecting changes in radioactivity of the solution in glass cylinders
sealed to the astomatal, adaxial surface of the leaf discs. Penetration of 2,4-D
[(2,4-dichlorophenoxy)acetic...
Two experiments were conducted on wine grapes 'Chardonnay' and
'Gewurtztraminer' (Vitis vinifera L.) in 1986 and 1987 to
investigate the performance of grapes in competition with perennial
ryegrass (Lolium perenne L.) 'Manhattan 11' sod, the competition
between sod and grapes for nutrients and moisture and the effects
of nitrogen fertilization...
The F₂ progeny from a diallel cross involving seven winter
wheat parents along with the parents were grown at the Hyslop
Agronomy Farm near Corvallis, Oregon to determine the influence
of three plant densities on gene action estimates for yield and its
primary components. The plant densities were designed to...
Spike morphology characteristics and the free-threshing habit of wheat have been extensively investigated because of their evolutionary significance and practical importance. Several genetic systems that govern these traits have been reported. Some studies suggest polygenic inheritance while others have identified major genes. This study was conducted to identify and locate...
Pyrenophora tritici-repentis, the causal agent of tan spot disease of wheat, mediates disease by the production of host-selective toxins (HST). The known toxins are recognized in an 'inverse' gene-for-gene manner, where each is perceived by the product of a unique locus in the host and recognition leads to disease susceptibility....
Published May 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog