Variation of biochemical and antioxidant activity with respect to the phenological stage of Tithonia diversifolia Hemsl. (Asteraceae) populations

How do essential oil composition and phenolic acid profile of Heracleum persicum fluctuate at different phenological stages?

“…Pretti et al. (2018) stated that principal component analysis and cluster analyses can be used to determine the optimum phenological stage and to achieve the best yield of phenolic acids and essential oil compounds from plants (Pretti et al., 2018). This research illustrated in the vegetative phase and in the beginning of the generative phase; the rate of phenolic acids was high.…”

“…In a study to investigate the phenological effects on phytochemical compounds at different populations of the Tithonia diversifolia, the cluster and principal component analyses were used and the results showed that phytochemical compounds were differed in various phenological stages (Pretti et al, 2018). other, but were strongly influenced by the plant physiological stage while were separately placed in a separate group.…”

“…Based on the dendrogram obtained from the cluster analysis, it was observed that the H. persicum was affected by the genetic and the environment in the final stages of phenology more than the primary and middle stages. Pretti et al (2018) stated that principal component analysis and cluster analyses can be used to determine the optimum phenological stage and to achieve the best yield of phenolic acids and essential oil compounds from plants (Pretti et al, 2018). This research illustrated in the vegetative phase and in the beginning of the generative phase;…”

Guide to Harvesting Heracleum Persicum: How Essential Oil Composition and Phenolic Acid Profile Fluctuate at Different Phenological Stages?

“…So we can pinpoint the phytochemical compounds extracted from the plant strongly depend on the plant organ and phenological stage 34,47,48 . In a study to investigate the phenological effects on phytochemical compounds at different populations of the Tithonia diversifolia, the cluster and principal component analyses were used and the results showed that phytochemical compounds were differed in various phenological stages 49 . Classi ed phenological stages based on all the studied characteristics in this experiment using cluster analysis method are shown in Fig.…”

“…Based on the dendrogram obtained from the cluster analysis, it was observed that the H. persicum was affected by the genetic and the environment in the nal stages of phenology more than the primary and middle stages. Pretti et al (2018) stated that principal component analysis and cluster analyses can be used to determine the optimum phenological stage and to achieve the best yield of phenolic acids and essential oil compounds from plants 49 . This research illustrated in the vegetative phase and in the beginning of the generative phase; the rate of phenolic acids was high.…”