Aims Rosa roxburghii is a special economic tree species native to southwest China, and it has been taken as a key fruit tree in karst mountainous areas of Guizhou Province. However, it is unclear whether R. roxburghii can adapt to high-calcium habitats in the karst areas. To provide scientific evidence for determining the potential planting sites of R. roxburghii, the calcium-tolerance type and adaptability to high-calcium habitats of R. roxburghii were needed to be clarified. Methods In this study, different organs from 50 R. roxburghii individuals and different calcareous soils where R. roxburghii grew were sampled in karst areas of Guizhou. The pH, exchangeable calcium and magnesium contents in the soil, total calcium and calcium oxalate contents in the plant organs, and calcium and magnesium contents in the leaves were determined, and the proportion of calcium oxalate in different organs to total calcium content was calculated. Then, the correlations between the exchangeable calcium and magnesium content in the soil with total calcium in different organs, and calcium and magnesium content in the leaves were analyzed. In addition, the distribution of calcium oxalate crystals in different organs as well as on the leaf surface was observed in samples collected from low-calcium and high-calcium habitats. Important findings The soil at R. roxburghii sites in karst areas had a high pH, and the content of exchangeable calcium and magnesium was abundant and varies greatly. In different calcareous habitats, the total calcium content in different organs of R. roxburghii was significantly and positively correlated with the exchangeable calcium content in the soil. Similarly, the contents of total calcium and magnesium in the leaves were correlated with those in the soil. The
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.