Morphology, photosynthetic physiology and biochemistry of nine herbaceous plants under water stress

• DOI: 10.3389/fpls.2023.1147208
• Publication Date: 2023-03-30T10:02:27Z
• Authors: Qiaoyu Luo; Huichun Xie; Zhi Chen; Yonggui Ma; Haohong Yang; Bing Yang; Yushou Ma
• Keywords: Herbaceous plant; Waterlogging (archaeology); Drought Tolerance; Water Use Efficiency; Osmolyte; Ecophysiology

Global climate warming and shifts in rainfall patterns are expected to trigger increases the frequency magnitude of drought and/or waterlogging stress plants. To cope with water stress, plants develop diverse tactics. However, adoption capability mechanism vary depending upon plant species identity as well duration intensity. The objectives this study were evaluate species-dependent responses alpine herbaceous stress. Nine subjected different stresses (including moderate waterlogging) pot culture using a randomized complete block design three replications for each treatment. We hypothesized that would negatively impact growth metabolism. found considerable interspecies differences morphological, physiological, biochemical when exposed same regime. In addition, we observed pronounced interactive effects regime on height, root length, root/shoot ratio, biomass, contents chlorophyll a, b, (a+b), carotenoids, malondialdehyde, soluble sugar, betaine, protein proline, implying respond differently. Our findings may cast new light ecological restoration grasslands wetlands Qinghai-Tibetan Plateau by helping select stress-tolerant species.