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- Title
不同盐胁迫对紫金牛生长以及生理的影响.
- Authors
邓甜甜; 刘倩钰; 何金金; 廖飞勇
- Abstract
Ardisia japonica is a low ornamental shrub belong to myrsinacea family. It is widely used as a ground cover in gardens because of strong shade tolerance. It is of great significance to study the growth and adaptability of A. japonica in soils with different salt concentration for popularizing its landscaping in saline-alkali soil. The effects of different salts on triennial potted A. japonica seedlings were studied, with red-yellow soil, soil-coconut bran, and black soil (with a volume ratio: 1:1:1) as the substrate. Seven treatments were set, including CK, A1 (0.30%NaCl), A2 (0.60%NaCl), B1 (0.30%Na2CO3), B2 (0.60%Na2CO3), C1 (0.15%NaCl+0.15%Na2CO3) and C2 (0.30%NaCl+0.30%Na2CO3). The plant height, MDA, soluble protein, chlorophyll content and chlorophyll fluorescence parameters were measured. With the increasing of stress degree, the plant height increment and rhizome water content of A. japonica gradually decreased. Meanwhile, the cell membrane was damaged, and the permeability changed, and MDA, the main product of membrane lipid peroxidation increased accordingly. The soluble protein of A. japonica first increased and then decreased, which indicated that the protein would degrade when the stress reached a certain degree, low concentration of salt promoted promoted effect at the early stage of the stress. During the stress, the value of Fv´/Fm´, ETR, Fv/Fm decreased. The results showed that A. japonica had a certain salt tolerance, and A. japonica could be planted in areas containing mild neutral salt and mixed saline soil, which was not suitable for planting in alkaline salt areas.
- Subjects
LIPID peroxidation (Biology); CHLOROPHYLL spectra; GROUND cover plants; CHLOROPHYLL; SALT; BLACK cotton soil
- Publication
Ecological Science, 2023, Vol 42, Issue 3, p53
- ISSN
1008-8873
- Publication type
Article
- DOI
10.14108/j.cnki.1008-8873.2023.03.007