Toonen Marcel, Ribot Simon, Thissen Jac
Plant Research International, Wageningen-UR, PO Box 16, 6700 AA Wageningen, The Netherlands.
J Forensic Sci. 2006 Sep;51(5):1050-4. doi: 10.1111/j.1556-4029.2006.00228.x.
To obtain a reliable estimation on the yield of illicit indoor cannabis cultivation in The Netherlands, cannabis plants confiscated by the police were used to determine the yield of dried female flower buds. The developmental stage of flower buds of the seized plants was described on a scale from 1 to 10 where the value of 10 indicates a fully developed flower bud ready for harvesting. Using eight additional characteristics describing the grow room and cultivation parameters, regression analysis with subset selection was carried out to develop two models for the yield of indoor cannabis cultivation. The median Dutch illicit grow room consists of 259 cannabis plants, has a plant density of 15 plants/m(2), and 510 W of growth lamps per m(2). For the median Dutch grow room, the predicted yield of female flower buds at the harvestable developmental stage (stage 10) was 33.7 g/plant or 505 g/m(2).
为了可靠估计荷兰室内非法种植大麻的产量，警方没收的大麻植株被用于确定干燥雌花芽的产量。被查获植株花芽的发育阶段按1至10的等级描述，其中10表示已完全发育、可收获的花芽。利用描述种植室和种植参数的另外八个特征，通过子集选择进行回归分析，以建立两个室内大麻种植产量模型。荷兰非法种植室的中位数为259株大麻植株，种植密度为每平方米15株，每平方米有510瓦的生长灯。对于荷兰种植室的中位数情况，在可收获发育阶段（第10阶段）雌花芽的预测产量为每株33.7克或每平方米505克。
