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2010 | 32 | 5 |
Tytuł artykułu

Physiological characterization of ‘stay green’ wheat cultivars during the grain filling stage under field growing conditions

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Rye (Secale cereale L.) chromosome arm 1RS could delay leaf senescence, and change in H₂O₂ content is a useful index for weighing the ability to delay the senescence. Two wheat cultivars, Chuannong12 (CN12) and Chuannong 18 (CN18), harboring the wheat–rye 1BL/1RS translocated chromosome were investigated for H₂O₂ change and physiological index after flowering under field conditions, and MY11, the agronomical parent of both CN12 and CN18, was used as the control. A combined change in the peak value of CdSe/ZnS quantum dot (QD) fluorescence and morphological observation indicated that the H₂O₂ contents in CN12 and CN18 were generally lower than that in MY11. They both had higher values for net photosynthetic rate (Pn), stomatal conductance (Gs), Fv/F'm F'v/F'm, and photochemical quenching of PSII (qP) than MY11 only in the late measurement stage. Some small differences were also observed, such as CN12 and CN18 wheat cultivars having higher and longer photosynthetic competence than MY11 during the grain filling stage, which perhaps resulted from a mechanism for removing oxidative species, especially H₂O₂.
Słowa kluczowe
EN
Wydawca
-
Rocznik
Tom
32
Numer
5
Opis fizyczny
p.875-882,fig.,ref.
Twórcy
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • College of Life and Science, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
autor
  • State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, 625014 Ya’an, Sichuan, China
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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