|Table of Contents|

Effects of High Temperature and CO2 Enrichment on Diurnal Variation of Photosynthesis and Stomatal Movement in Cucumber

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年24
Page:
11-17
Research Field:
Publishing date:

Info

Title:
Effects of High Temperature and CO2 Enrichment on Diurnal Variation of Photosynthesis and Stomatal Movement in Cucumber
Author(s):
CUI Xiaohan1; PAN Lu1; CUI Shimao1; YE Lihong1; WU Rilige2; SONG Yang1
(1.College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010019；2.Xing′an League Agricultural and Animal Husbandry Research Institute,Ulanhot,Inner Mongolia 137400)
Keywords:
greenhouse cucumber; high temperature; CO2 enrichment; stomatal movement
PACS:
-
DOI:
10.11937/bfyy.20221968
Abstract:
Grafted cucumber in greenhouse was used as the test materials,and there were four treatments were set,including high temperature,high temperature+CO2 enrichment,normal temperature+CO2 enrichment and normal cultivation as the control.The diurnal variation of photosynthesis and stomatal movement of cucumber leaves under different treatments in greenhouse were studied,in order to provide reference for the subsequent study of stomatal movement regulation mechanism.The results showed that from 10:00 to 16:00,the net photosynthetic rate,stomatal conductance,intercellular CO2 concentration and stomatal aperture of cucumber leaves under high temperature+CO2 enrichment were significantly higher than those of the control.The net photosynthetic rate under high temperature was significantly lower than that under control,while the net photosynthetic rate under normal temperature+CO2 enrichment increased but the difference was not significant.The combination of high temperature and CO2 enrichment could promote stomatal opening and significantly improve photosynthesis of cucumber leaves,but the effect of simple high temperature or CO2 enrichment was not obvious.

References:

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Last Update: 2023-01-22