The contents of [delta]9-thc in five hemp varieties (Cannabis sativa L. var. sativa)
2002
Baricevic, D. | Kocjan-Acko, D. (Ljubljana Univ. (Slovenia). Biotechnical Fac., Agronomy Dept.)
In production years 2000 and 2001 five varieties of hemp (Cannabis sativa L. var. sativa) were plotted in the field experiment (4 random blocks) at Markisavci location near Murska Sobota, in north-eastern part of Slovenia. 10 plant samples, obtained from the upper third of the female or hermaphrodite plants were obtained in four different developmental stages, i.e. before flowering, at full bloom and in the phase of maturation of the main crop and in the phase of seed maturation of the stubble crop. The results of two years measurements of the contents of [delta]9-THC analysis, based on EU prescribed methods, showed that tested varieties 'Unico-B', 'Juso-11', 'Bialobrzeskie' and 'Beniko', did not exceed the limit of 0,2 % THC (EU regulation). This is the reason, why these varieties seem acceptable for cultivation (stem or seed production) purposes in Slovenia. On the contrary, 'Novosadska konoplja' exceeded the legally allowed [delta]9-THC concentration in the upper third of crop plants, sampled in August (0,84 %) and September (0,82 %) as well as in all samples in 2001. These elevated amounts of [delta]9-THC considerably influenced the average content of [delta]9-THC in plant samples of 'Novosadska konoplja' (0,46 % in 2000 and 0,34 % in 2001).
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