Effects of Dust Retention Amount on Proline Content in Seven Garden Trees(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:

2017年20

Page:

100-104

Research Field:

Publishing date:

Info

Title:

Effects of Dust Retention Amount on Proline Content in Seven Garden Trees

Author(s):

DING Yanli; ZHANG Lei; FU Yongyu

Special Education College，Beijing Union University，Beijing 100075

Keywords:

dust retention ability; proline; adversity

PACS:

-

DOI:

10.11937/bfyy.20170361

Abstract:

Taking the leaves of Sophora japonica var.pendula,Lonicera japonica,Fraxinus chinensis,Pterocarya stenoptera,Magnolia×Soulangeana,Morus alba,Ginkgo biloba as test materials,the effect of the dusty leaves′s physiological activities was studied,the captured amount of TSP and PM2.5 per unit leaf area for seven trees were measured by water washing method.In the same time,the proline content change was measured between seven kinds of trees before and after the dust retention.The results showed that the dust retention amount per unit leaf area of different tree species was different,such as Ginkgo biloba,the higher amount dust retention per unit area of the trees′ leaves was 0.034 mg?cm-2,such as Morus alba,the lower amount dust retention per unit area of the trees′ leaves was only 0.010 mg?cm-2.Among Ginkgo biloba, Pterocarya stenoptera, Sophora japonica var.pendula,Morus alba, Magnolia×Soulangeana, the proline content in leaves was different degree in increase with the variation ranges of 21.73%-338.25%.The growth of proline had ranged from large to small,Ginkgo biloba,Pterocarya stenoptera,Sophora japonica var.pendula,Morus alba,Magnolia×Soulangeana；but Fraxinus chinensis and Lonicera japonica,the proline content in leaves declined,the content of reduction was 59.77%,66.14%.So Ginkgo biloba was the highest ability of dust retention(PM>2.5). Morus alba was the weakest ability of dust retention(PM>2.5).

References:

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