The overall lot sample was, therefore, a proportionate, stratified sample [26], [27].
The size of the sample taken from each village was weighted by the village population so that larger villages contributed more to the lot sample than smaller villages.
After grinding the lot sample, a subsample is taken for the actual analytical process.
Generally, a representative sample should involve the collection of several small randomly selected samples from the whole lot to form what is known as a "lot sample".
On the basis of catch lot sampling, out of 291 positive catch lots, 266 (91.4%) were positive in all 4 pooled samples, 2 (0.7%) were positive in 3 pooled samples, 6 (2.1%) were positive in 2 pooled samples, and 17 (5.8%) were positive in only 1 pooled sample.
On the basis of catch lot sampling, out of 291 catch lots, 266 were positive in all samples (91.4%), 2 were positive in three samples (0.7%), 6 were positive in two samples (2.1%), and 17 were positive in one sample (5.8%).
Their study was conducted in naturally regenerated lots, sample trees were 120 years old and microsatellites were used for paternity analysis.
Analyses of genetic structure show that seed lots of the OPVs sampled on-farm after one or more growing seasons are significantly differentiated from the seed lots sampled from the formal system.
Of the 11 apartments with CT parking lots sampled for this study, six (55%) had a concentration of B2 PAHs that exceeded 40 μg/g (Table 2), indicating that use of coal-tar sealcoat on parking lots and driveways is related to elevated concentrations of carcinogenic PAHs in SHD.
Three of the seed lots sampled on-farm (Staha local 1, Staha local 2 and TMV1 local) were reportedly used for one generation (i.e. we sampled seeds from the first harvest) while Staha recycled was reportedly recycled for 10 generations.
