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Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels
Li, Yuan1; Niu, Wenquan2,3,4; Cao, Xiaoshu1; Wang, Jingwei2,3; Zhang, Mingzhi3; Duan, Xiaohui1,3; Zhang, Zhenxing5,6
2019-07-29
Source PublicationBMC PLANT BIOLOGY
ISSN1471-2229
Volume19Pages:15
Corresponding AuthorNiu, Wenquan(nwq@vip.sina.com)
AbstractBackgroundSalt stress is one of the environmental factors that greatly limits crop production worldwide because high salt concentrations in the soil affect morphological responses and physiological and metabolic processes, including root morphology and photosynthetic characteristics. Soil aeration has been reported to accelerate the growth of plants and increase crop yield. The objective of this study was to examine the effects of 3 NaCl salinity levels (28, 74 and 120mM) and 3 aeration volume levels (2.3, 4.6 and 7.0L/pot) versus non-aeration and salinity treatments on the root morphology, photosynthetic characteristics and chlorophyll content of potted tomato plants.ResultsThe results showed that both aeration volume and salinity level affected the root parameters, photosynthetic characteristics and chlorophyll content of potted tomato plants. The total length, surface area and volume of roots increased with the increase in aeration volume under each NaCl stress level. The effect was more marked in the fine roots (especially in <= 1mm diameter roots). Under each NaCl stress level, the photosynthetic rate and chlorophyll content of tomato significantly increased in response to the aeration treatments. The net photosynthetic rate and chlorophyll a and t content increased by 39.6, 26.9, and 17.9%, respectively, at 7.0L/pot aeration volume compared with no aeration in the 28mM NaCl treatment. We also found that aeration could reduce the death rate of potted tomato plants under high salinity stress conditions (120mM NaCl).ConclusionsThe results suggest that the negative effect of NaCl stress can be offset by soil aeration. Soil aeration can promote root growth and increase the photosynthetic rate and chlorophyll content, thus promoting plant growth and reducing the plant death rate under NaCl stress conditions.
KeywordTomato Soil aeration NaCl salinity Root morphology Photosynthetic characteristics
DOI10.1186/s12870-019-1927-3
WOS KeywordWATER-USE EFFICIENCY ; SUBSURFACE DRIP-IRRIGATION ; ABSCISIC-ACID ; OXYGEN DEFICIENCY ; SALT STRESS ; GROWTH ; YIELD ; CROP ; TOLERANCE ; ACCUMULATION
Indexed BySCI
Language英语
Funding ProjectNational Key Research Project of China 13th Five Year Plan[2016YFC0400202] ; Natural Science Foundation of China[41807041] ; Natural Science Foundation of China[41831284] ; Natural Science Foundation of China[51679205] ; Natural Science Foundation of Guangdong Province[2018A0303130149] ; Science and Technology Program of Guangzhou[20181002SF0530] ; Fundamental Research Funds for the Central Universities[GK201903115] ; Program of Introducing Talents of Discipline to Universities[B16011]
Funding OrganizationNational Key Research Project of China 13th Five Year Plan ; Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Science and Technology Program of Guangzhou ; Fundamental Research Funds for the Central Universities ; Program of Introducing Talents of Discipline to Universities
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000477836000001
PublisherBMC
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58146
Collection中国科学院地理科学与资源研究所
Corresponding AuthorNiu, Wenquan
Affiliation1.Shaanxi Normal Univ, Northwest Land & Resources Res Ctr, Xian 710119, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&F Univ, Inst Water Saving Agr Arid Areas China IWSA, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
5.Northeast Normal Univ, Inst Grassland Sci, Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Jilin, Peoples R China
6.Northeast Normal Univ, Sch Environm, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun 130117, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Li, Yuan,Niu, Wenquan,Cao, Xiaoshu,et al. Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels[J]. BMC PLANT BIOLOGY,2019,19:15.
APA Li, Yuan.,Niu, Wenquan.,Cao, Xiaoshu.,Wang, Jingwei.,Zhang, Mingzhi.,...&Zhang, Zhenxing.(2019).Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels.BMC PLANT BIOLOGY,19,15.
MLA Li, Yuan,et al."Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels".BMC PLANT BIOLOGY 19(2019):15.
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