DOI: 10.1016/j.atmosenv.2017.09.027
Scopus记录号: 2-s2.0-85029796051
论文题名: Effects of submicron ammonium sulfate particles on the growth and yield of komatsuna (Brassica rapa L. var. perviridis)
作者: Motai A ; , Nakaba S ; , Lenggoro I ; W ; , Watanabe M ; , Wada Y ; , Izuta T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 169 起始页码: 278
结束页码: 286
语种: 英语
英文关键词: Ammonium sulfate particle
; Brassica rapa L. var. perviridis
; Growth
; PM2.5
; Stomatal conductance
Scopus关键词: Greenhouses
; Growth (materials)
; Ions
; Leaching
; Sulfur compounds
; Value engineering
; Washing
; Ammonium Sulfate
; Brassica rapa
; Leaf concentrations
; PM2.5
; Stomatal closures
; Stomatal conductance
; Ultra-pure water
; Washing procedures
; Plant shutdowns
; ammonium sulfate
; chlorophyll
; nitrogen
; ammonium sulfate
; atmospheric deposition
; concentration (composition)
; growth rate
; leafy vegetable
; optimization
; particulate matter
; pollution effect
; stomatal conductance
; yield response
; Article
; concentration (parameters)
; komatsuna
; leaching
; leaf surface
; nonhuman
; particulate matter
; phytotron
; plant growth
; plant yield
; priority journal
; process optimization
; reduction (chemistry)
; stomatal conductance
; time
; Brassica rapa
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The aim of this study was to determine the effects of submicron ammonium sulfate (AS) particles on komatsuna (Brassica rapa L. cv. Hakkei) plants. First, we optimized a leaf-washing method to measure the amount of AS particles deposited on the leaf surface of the plants. Then, we used this method to determine the retention time of particles deposited on the leaf surface of the plants. We also investigated the effects of AS particles on the growth and yield of the plants. Almost all the AS particles deposited on the leaf surface were removed within 1 min washing time with ultrapure water, and ion leaching from the leaf was relatively slow but continuous during the leaf-washing procedure. On the basis of these results, we determined that 1 min was a suitable washing time to remove most of the AS particles while minimizing the influence of ion leaching from the leaf. The amount of particulate SO42− deposited on the leaf surface decreased over time, probably because AS particles deposited on the leaf surface deliquesced, allowing ions such as SO42− in the deliquescence solution to be absorbed into the leaf. The plants were grown and exposed to AS particles for 16 days in naturally lit phytotrons. The daily mean increase in the concentration of SO42− in PM2.5 by the exposure to AS particles was 22.5 μg m−3 in the phytotrons. The growth and yield of the plants were significantly reduced by the exposure to AS particles. The exposure to AS particles did not affect the leaf concentrations of nitrogen and chlorophyll, but significantly reduced stomatal conductance. Therefore, stomatal closure is one of the reasons for the AS particle-induced reductions in the growth and yield of komatsuna plants. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82381
Appears in Collections: 气候变化事实与影响
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作者单位: The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan; Institute of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan; Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan; Faculty of Agriculture, Utsunomiya University, 350 Mine-machi, Utsunomiya, Tochigi, Japan
Recommended Citation:
Motai A,, Nakaba S,, Lenggoro I,et al. Effects of submicron ammonium sulfate particles on the growth and yield of komatsuna (Brassica rapa L. var. perviridis)[J]. Atmospheric Environment,2017-01-01,169