Agronomy, Journal Year: 2024, Volume and Issue: 14(12), P. 2977 - 2977
Published: Dec. 13, 2024
To supply information concerning the application of poly-glutamic acid (PGA) in drought-resistant cultivation red sage (Salvia miltiorrhiza), we investigated role PGA regulating physiological characteristics, plant growth, and accumulation main medical components root under water shortage. The findings showed that different levels shortage (WS) all suppressed photosynthetic function by reducing net rate (Pn), Soil analyzer development (SPAD) value, maximum photochemical efficiency PSII (Fv/Fm), quenching (qP), actual (Y(II)), as well increasing non-photochemical (qN). Compared with WS, plus WS enhanced qN other indicators above. For metabolism, increased stomatal limit value (Ls) use (WUE), but decreased transpiration (Tr) conductance (Gs). Ls Tr, Gs, WUE. Meanwhile, antioxidant capacity superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) activities. However, malondialdehyde (MDA) content. above enzymes. In this way, reduced MDA content improved WS. addition, shoot biomass, root/shoot ratio. further ratio biomass. ingredients, yield rosmarinic (RosA) salvianolic B (SalB), dihydrotanshinone (DHT), cryptotanshinone (CTS), tanshinone I (Tan I), ⅡA ⅡA). these ingredients. Our clearly suggested was an effective method to enhance drought tolerance ingredients root. This provides useful for its production
Language: Английский