Antagonist Temperature Variation Affects the Photosynthetic Parameters and Secondary Metabolites of Ocimum basilicum L. and Salvia officinalis L.

Abstract

Climate change is one of the main challenges for actual and future generations. Global warming affects plants and animals and is responsible for considerable crop loss. This study studied the influence of antagonist successive stresses, cold–heat and heat–cold, on two medicinal plants Ocimum basilicum L. and Salvia officinalis L. The photosynthetic parameters decreased for plants under the variation of subsequent stress. Net assimilation rates and stomatal conductance to water vapor are more affected in the case of plants under cold–heat consecutive stress than heat–cold successive stress. Emissions of volatile organic compounds have been enhanced for plants under successive stress when compared with control plants. Chlorophyll concentrations for plants under successive stress decreased for basil and sage plants. The total phenolic and flavonoid contents were not affected by the successive stresses when compared with the plants under only one type of treatment.

Optimizing growth conditions in vertical farming: enhancing lettuce and basil cultivation through the application of the Taguchi method

“…In this study, the best predicted day/night temperature for lettuce and basil was 15/10 and 26/20 °C, respectively. This finding is in line with the previous studies which introduce basil and lettuce as the warm and cold climate plants 60 . The high temperature can accelerate the seed production and results in very tall lettuce.…”

Implications of the Propagation Method for the Phytochemistry of Nepeta cataria L. throughout a Growing Season

“…A combination of milder temperatures and higher precipitation volume (Table 1) are likely to be significant contributors to the best performance of plants grown in Pittstown. Higher water availability and ideal ambient temperatures are extensively reported as improving stomatal conductance and net assimilation rates in medicinal and aromatic plants [52,53], and studies with N. cataria demonstrated that the biomass of the plants tends to significantly decrease under low availability of water [25,54].…”

Biological Profiling of Essential Oils and Hydrolates of Ocimum basilicum var. Genovese and var. Minimum Originated from Serbia

“…There is a difference in the chemical composition of O. basilicum essential oils depending on the plant variety, harvesting season, soil and climate conditions, growing technology, and postharvest processing, etc. [25][26][27]. The chemical composition and biological activity of O. basilicum essential oils depend on environmental conditions and location, seasonal variation, different agronomic and harvesting techniques, and drying and processing methods [23].…”