|Table of Contents|

Effects of Climate Change on Photosynthate Distribution and  Fruit Quality of Woody Plants(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年10
Page:
161-167
Research Field:
Publishing date:

Info

Title:
Effects of Climate Change on Photosynthate Distribution and  Fruit Quality of Woody Plants
Author(s):
HA Rong; MA Yaping; CAO Bing
(School of Agriculture,Ningxia University,Yinchuan,Ningxia 750021)
Keywords:
climate change; photosynthesis; product allocation; fruit quality
PACS:
-
DOI:
10.11937/bfyy.20174223
Abstract:
The greenhouse effect caused by the elevated atmospheric CO2 concentration leads to the increase of the global surface mean temperature,which results in the change of the global precipitation pattern,and has an important influence on the ecosystem and the production of agriculture and forestry.Therefore,the physiological and ecological responsed mechanism of woody plants to climate change had attracted more attention.In this study the effects of increased CO2 concentration,temperature rise and drought stress on photosynthetic producted distribution of woody plants and fruit quality were reviewed.The simulation experiments showed that,as the increase of atmospheric CO2 concentration,the photosynthetic capacity of plants would increase,but long-term growth in high CO2 concentration of plants would show a decline in photosynthetic capacity-light adaptation phenomenon. Temperature raise could decrease the activity of photosynthetic enzyme and chlorophyll content,which led to the photosynthetic rate declined.Drought stress reduced photosynthesis by diminishing stomatal conductance and photosynthetic activity.Under the condition of high CO2 concentration or drought stress,the ratio of photosynthate distribution to root system was increased,and the root shoot ratio of plant was decreased when the temperature increased.Besides,in the fruit quality,elevated concentrations of CO2 increased the soluble solids content in fruits.The increase of temperature affected the growth of fruit,and the content of some sugars and organic acids increased.Drought stress could inhibit fruit growth,however,increased soluble sugar,vitamin C content and so on.It was suggested that temperature increase could slow down the inhibition of drought stress on fruit quality and improve fruit quality.Accordingly environmental stresses caused by climate change contribute to the accumulation of sugar in fruits.

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Last Update: 2018-06-01