Dry matter content variation in seeds of hemp for fiber - Comparative study in some genotypes
Abstract
The study analyzed the dry matter content of industrial hemp seeds. The experiment took place within ARDS Lovrin, Timis County, Romania. Six hemp genotypes for fiber were considered, noted in the study with codes FHG1 to FHG6. The studied genotypes were cultivated in four repetitions, non-irrigated system. The dry matter content (DM, %) was determined in seed samples at physiological maturity. The mean values recorded were DM = 93.60±0.22% in the case of FHG1, DM = 93.12±0.02 in the case of FHG2, DM = 92.16±0.05% in the case of FHG3, DM = 93.31±0.05 in the case of FHG4, DM = 92.93±0.01% in in the case of FHG5, and DM = 91.78±0.08% in the case of FHG6. The FHG1 genotype recorded statistically significant differences compared to the FHG2 genotype (p = 0.44, *), the FHG5 genotype (p = 0.005, **), and the FHG6 genotype (p<0.001, ***). The FHG2, FHG2, FHG4 and FHG5 genotypes presented differences in terms of statistical safety compared to the FHG6 genotype (p<0.001, ***). Compared to the mean value per experiment (DM_m = 92.98±0.007%), the FHG1 genotype (p<0.001) and the FHG4 genotype (p<0.05) were highlighted with positive differences. The cluster analysis generated the dendrogram of association of genotypes based on similarity (Coph.corr. = 0.964).
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