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Articles related to stratification

Stratification of Tree Seed for Proper Germination - Forestry - About ...
Stratification - Many dormant tree seeds need to be "after-ripened" before they can germinate. This is the most common cause of seeds failing to germinate.
Germinating and Planting Common Tree Seeds - Forestry - About.com
Hickory - This tree nut is generally considered to exhibit embryo dormancy. The common treatment is to stratify the nuts in a moist medium at 33 to 50 degrees F ...
Propagate Hickory Tree Seed - Forestry - About.com
The hickory tree nut is generally considered to exhibit embryo dormancy and needs stratification. The common treatment is to stratify the nuts in a moist medium ...
Stratification of Seeds to Break Dormancy - Gardening - About.com
Stratification is a means of simulating the chilling and warming that seeds would endure if left outdoors in their native climate for the winter.
Stratification - Sociology - About.com
Stratification is the social process through which rewards and resources...
Stratified Charge - About Hybrid Cars
Definition: Stratified charge combustion engines utilize a method of distributing fuel that successively builds layers of fuel in the combustion chamber. The initial  ...
stratified random sample - Market Research - About.com
A stratified random sample is classified as a probabilistic sampling procedure. Stratified samples consist of homogeneous sub-groups that are considered to be  ...
Stratified Sample - Sociology - About.com
A stratified sample is a probability sampling technique in which the researcher divides the entire target population into different subgroups, or strata, and then ...
Ranking and Social Stratification in Archaeology: A Brief Bibliography
This bibliography has been collected to go along with the glossary entry for Ranking and Social Stratification. Bishop, Charles A.1983 Limiting access to limited ...
Ranking and Social Inequality - Archaeology - About.com
... of Ancient Civilizations, and part of the Dictionary of Archaeology. A fairly brief bibliography of ranking and social stratification has been collected for this entry.
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