Interactions between elevated CO2 and water stress in two winter wheat cultivars differing in drought resistance

Noémi Harnos, Szilvia Bencze, T. Janda, Angéla Juhász, O. Veisz

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Two winter wheat varieties (Alba, cultivated in Poland and usually having high biomass production, and the Hungarian variety Martonvásári 15, which has better drought tolerance) were grown in two phytotron chambers at 375 and 700 μmol mol-1 air CO2 concentration with three different levels of water supply, to evaluate the interactive effects of elevated CO2 concentration and drought stress on yield components and leaf photosynthetic activity. Elevated CO2 concentration had positive effects on the development of the plants and decreased the negative effects of drought, while the development of the more drought-tolerant variety Martonvásári 15 was hindered by elevated CO2 concentration at high water supplies. Grain yield was mainly affected by drought. The negative effects of water stress were partially compensated by elevated CO2 concentration. Gas exchange changed in different ways, depending of the duration of the treatments: low water supplies decreased the net photosynthesis, transpiration and stomatal conductivity of both varieties, while elevated CO2 concentration decreased them in the beginning then increased them by the 10th week of treatment.

Original languageEnglish
Pages (from-to)359-366
Number of pages8
JournalCereal Research Communications
Volume30
Issue number3-4
Publication statusPublished - 2002

Fingerprint

Droughts
Dehydration
drought tolerance
Triticum
winter wheat
water stress
carbon dioxide
Water Supply
cultivars
water supply
drought
Plant Development
Water Purification
Photosynthesis
Poland
Biomass
yield components
Gases
Air
gas exchange

Keywords

  • CO concentration
  • Photosynthesis
  • Winter wheat
  • Yield components

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Interactions between elevated CO2 and water stress in two winter wheat cultivars differing in drought resistance. / Harnos, Noémi; Bencze, Szilvia; Janda, T.; Juhász, Angéla; Veisz, O.

In: Cereal Research Communications, Vol. 30, No. 3-4, 2002, p. 359-366.

Research output: Contribution to journalArticle

@article{768628f4225f4e6e98470a22f5d8ef81,
title = "Interactions between elevated CO2 and water stress in two winter wheat cultivars differing in drought resistance",
abstract = "Two winter wheat varieties (Alba, cultivated in Poland and usually having high biomass production, and the Hungarian variety Martonv{\'a}s{\'a}ri 15, which has better drought tolerance) were grown in two phytotron chambers at 375 and 700 μmol mol-1 air CO2 concentration with three different levels of water supply, to evaluate the interactive effects of elevated CO2 concentration and drought stress on yield components and leaf photosynthetic activity. Elevated CO2 concentration had positive effects on the development of the plants and decreased the negative effects of drought, while the development of the more drought-tolerant variety Martonv{\'a}s{\'a}ri 15 was hindered by elevated CO2 concentration at high water supplies. Grain yield was mainly affected by drought. The negative effects of water stress were partially compensated by elevated CO2 concentration. Gas exchange changed in different ways, depending of the duration of the treatments: low water supplies decreased the net photosynthesis, transpiration and stomatal conductivity of both varieties, while elevated CO2 concentration decreased them in the beginning then increased them by the 10th week of treatment.",
keywords = "CO concentration, Photosynthesis, Winter wheat, Yield components",
author = "No{\'e}mi Harnos and Szilvia Bencze and T. Janda and Ang{\'e}la Juh{\'a}sz and O. Veisz",
year = "2002",
language = "English",
volume = "30",
pages = "359--366",
journal = "Cereal Research Communications",
issn = "0133-3720",
publisher = "Cereal Research Non-Profit Company",
number = "3-4",

}

TY - JOUR

T1 - Interactions between elevated CO2 and water stress in two winter wheat cultivars differing in drought resistance

AU - Harnos, Noémi

AU - Bencze, Szilvia

AU - Janda, T.

AU - Juhász, Angéla

AU - Veisz, O.

PY - 2002

Y1 - 2002

N2 - Two winter wheat varieties (Alba, cultivated in Poland and usually having high biomass production, and the Hungarian variety Martonvásári 15, which has better drought tolerance) were grown in two phytotron chambers at 375 and 700 μmol mol-1 air CO2 concentration with three different levels of water supply, to evaluate the interactive effects of elevated CO2 concentration and drought stress on yield components and leaf photosynthetic activity. Elevated CO2 concentration had positive effects on the development of the plants and decreased the negative effects of drought, while the development of the more drought-tolerant variety Martonvásári 15 was hindered by elevated CO2 concentration at high water supplies. Grain yield was mainly affected by drought. The negative effects of water stress were partially compensated by elevated CO2 concentration. Gas exchange changed in different ways, depending of the duration of the treatments: low water supplies decreased the net photosynthesis, transpiration and stomatal conductivity of both varieties, while elevated CO2 concentration decreased them in the beginning then increased them by the 10th week of treatment.

AB - Two winter wheat varieties (Alba, cultivated in Poland and usually having high biomass production, and the Hungarian variety Martonvásári 15, which has better drought tolerance) were grown in two phytotron chambers at 375 and 700 μmol mol-1 air CO2 concentration with three different levels of water supply, to evaluate the interactive effects of elevated CO2 concentration and drought stress on yield components and leaf photosynthetic activity. Elevated CO2 concentration had positive effects on the development of the plants and decreased the negative effects of drought, while the development of the more drought-tolerant variety Martonvásári 15 was hindered by elevated CO2 concentration at high water supplies. Grain yield was mainly affected by drought. The negative effects of water stress were partially compensated by elevated CO2 concentration. Gas exchange changed in different ways, depending of the duration of the treatments: low water supplies decreased the net photosynthesis, transpiration and stomatal conductivity of both varieties, while elevated CO2 concentration decreased them in the beginning then increased them by the 10th week of treatment.

KW - CO concentration

KW - Photosynthesis

KW - Winter wheat

KW - Yield components

UR - http://www.scopus.com/inward/record.url?scp=0036928917&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036928917&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036928917

VL - 30

SP - 359

EP - 366

JO - Cereal Research Communications

JF - Cereal Research Communications

SN - 0133-3720

IS - 3-4

ER -