6 research outputs found
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Oregon Pesticide Safety Education Manual: A Guide to the Safe Use and Handling of Pesticides
This publication is for pesticide applicators, including those preparing to take certification exams and those who already are certified pesticide applicators, operators, dealers, or consultants.This publication is out of date. Visit http://www.oregon.gov/ODA/programs/Pesticides/Licensing/Pages/ExamsStudy... for current study materials and information
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Some components of test weight of soft white wheat
Studies of some components of test weight in Soft White wheat
revealed distinct subclass differences. Wheat kernels of Soft White
more completely occupied a given volume than did kernels of White
Club. The Soft White kernels were larger and had a higher density
than the White Club kernels. Because of their larger size, fewer
Soft White kernels were retained in a given volume.
Due to their higher percent volume occupancy and their greater
kernel density, Soft White wheats had a significantly higher test
weight than White Club wheats.
Studies with wheats which had been sized by maximum cross -
sectional diameter showed that the larger kernels had the highest
test weight. They also had a higher percent volume occupancy than
smaller kernels. However, it was concluded that size, per se, was
not the reason for the higher percent occupancy. The general shape
and condition of the bran coat of large kernels is generally more conducive to close packing than that of smaller kernels. Generally,
kernel density did not differ significantly between the larger sizes.
The smallest kernels had a lower average test weight, kernel
density and occupied less of the volume than the larger kernels.
Often the smallest kernels had wrinkled bran coats or distorted
contours which may have caused the low packing density.
The general shape of White Club kernels is less favorable to
close packing than the longer more cylindrical shape of Soft White
kernels. Therefore, test weight is a measurement of unequal quantities
of wheat when Soft White and White Club wheats are compared
Procedimiento para la aplicaci?n de plaguicidas en sistemas de cultivo para peque?os agricultores
Tesis (M. Sc) -- CATIE, Turrialba (Costa Rica), 19
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IPM in Oregon : achievements and future directions
Published May 2000. 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/catalo
Environment and characteristics of the agricultural production in Jinotega, Nicaragua [agricultural exploitations]
Dat. num. Mapa 9 ref. Tambi?n en microficha *IICA, Turrialba (Costa Rica)