Respiration in mature leaves of Lolium perenne as affected by nutrient supply, cutting and competition

C. J. Pilbeam, M. J. Robson, H. Lambers

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The rate of oxygen uptake was measured on sections of mature leaf tissue derived from two populations of Lolium perenne L. cv. S23, selected for contrasting rates of mature leaf respiration. Under conditions of sufficient nutrient supply, GL72 had a lower rate of respiration and a greater yield than GL66. The populations were exposed to important management variables to investigate their effect on the selection criterion, the two variables being nutrient supply and defoliation. Conditions of low nutrient supply were characterized by a similarity in respiration rate and a change in the regulation of respiration. Enzyme levels, rather than adenylates, controlled respiration. Weekly cutting induced activity of the otherwise latent alternative pathway.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalPhysiologia Plantarum
Volume66
Issue number1
DOIs
Publication statusPublished - 1 Jan 1986
Externally publishedYes

Fingerprint

Lolium
Lolium perenne
Respiration
Respiratory Rate
Food
1-phenyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline
nutrients
leaves
selection criteria
defoliation
Patient Selection
Population
Oxygen
uptake mechanisms
oxygen
Enzymes
enzymes

Cite this

@article{e635496211c54538a16f2e03b4e94a19,
title = "Respiration in mature leaves of Lolium perenne as affected by nutrient supply, cutting and competition",
abstract = "The rate of oxygen uptake was measured on sections of mature leaf tissue derived from two populations of Lolium perenne L. cv. S23, selected for contrasting rates of mature leaf respiration. Under conditions of sufficient nutrient supply, GL72 had a lower rate of respiration and a greater yield than GL66. The populations were exposed to important management variables to investigate their effect on the selection criterion, the two variables being nutrient supply and defoliation. Conditions of low nutrient supply were characterized by a similarity in respiration rate and a change in the regulation of respiration. Enzyme levels, rather than adenylates, controlled respiration. Weekly cutting induced activity of the otherwise latent alternative pathway.",
keywords = "Alternative respiratory pathway, cytochrome pathway, perennial ryegrass, selection lines, yield",
author = "Pilbeam, {C. J.} and Robson, {M. J.} and H. Lambers",
year = "1986",
month = "1",
day = "1",
doi = "10.1111/j.1399-3054.1986.tb01232.x",
language = "English",
volume = "66",
pages = "53--57",
journal = "Physiologia Plantarum",
issn = "0031-9317",
publisher = "Wiley Blackwell",
number = "1",

}

Respiration in mature leaves of Lolium perenne as affected by nutrient supply, cutting and competition. / Pilbeam, C. J.; Robson, M. J.; Lambers, H.

In: Physiologia Plantarum, Vol. 66, No. 1, 01.01.1986, p. 53-57.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Respiration in mature leaves of Lolium perenne as affected by nutrient supply, cutting and competition

AU - Pilbeam, C. J.

AU - Robson, M. J.

AU - Lambers, H.

PY - 1986/1/1

Y1 - 1986/1/1

N2 - The rate of oxygen uptake was measured on sections of mature leaf tissue derived from two populations of Lolium perenne L. cv. S23, selected for contrasting rates of mature leaf respiration. Under conditions of sufficient nutrient supply, GL72 had a lower rate of respiration and a greater yield than GL66. The populations were exposed to important management variables to investigate their effect on the selection criterion, the two variables being nutrient supply and defoliation. Conditions of low nutrient supply were characterized by a similarity in respiration rate and a change in the regulation of respiration. Enzyme levels, rather than adenylates, controlled respiration. Weekly cutting induced activity of the otherwise latent alternative pathway.

AB - The rate of oxygen uptake was measured on sections of mature leaf tissue derived from two populations of Lolium perenne L. cv. S23, selected for contrasting rates of mature leaf respiration. Under conditions of sufficient nutrient supply, GL72 had a lower rate of respiration and a greater yield than GL66. The populations were exposed to important management variables to investigate their effect on the selection criterion, the two variables being nutrient supply and defoliation. Conditions of low nutrient supply were characterized by a similarity in respiration rate and a change in the regulation of respiration. Enzyme levels, rather than adenylates, controlled respiration. Weekly cutting induced activity of the otherwise latent alternative pathway.

KW - Alternative respiratory pathway

KW - cytochrome pathway

KW - perennial ryegrass

KW - selection lines

KW - yield

UR - http://www.scopus.com/inward/record.url?scp=0008737461&partnerID=8YFLogxK

U2 - 10.1111/j.1399-3054.1986.tb01232.x

DO - 10.1111/j.1399-3054.1986.tb01232.x

M3 - Article

VL - 66

SP - 53

EP - 57

JO - Physiologia Plantarum

JF - Physiologia Plantarum

SN - 0031-9317

IS - 1

ER -