Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures

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Understanding the mechanisms by which some C4 grasses grow more than others at moderately low temperatures (~12-20°C) is valuable to select materials to lengthen the growing season. In turn, the determination of leaf lifespan for each material to be used is relevant to optimize the balance between h...

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Autor principal: Berone, Germán D.
Formato: article Artículo publishedVersion
Lenguaje:Inglés
Publicado: Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 2016
Materias:
Temperatura
Gramíneas
Desarrollo foliar
Chaco (Argentina : provincia)
Base temperature
C4 grasses
Leaf appearance
Leaf growth
Leaf lifespan
Temperatura base
Crecimiento foliar
Vida media foliar
Acceso en línea:http://bdigital.uncu.edu.ar/8478
Aporte de:
Biblioteca Digital de Universidad Nacional de Cuyo
id I11-R88478
record_format dspace
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-8
collection Biblioteca Digital
language Inglés
orig_language_str_mv eng
topic Temperatura
Gramíneas
Desarrollo foliar
Chaco (Argentina : provincia)
Base temperature
C4 grasses
Leaf appearance
Leaf growth
Leaf lifespan
Temperatura base
Crecimiento foliar
Vida media foliar
spellingShingle Temperatura
Gramíneas
Desarrollo foliar
Chaco (Argentina : provincia)
Base temperature
C4 grasses
Leaf appearance
Leaf growth
Leaf lifespan
Temperatura base
Crecimiento foliar
Vida media foliar
Berone, Germán D.
Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
topic_facet Temperatura
Gramíneas
Desarrollo foliar
Chaco (Argentina : provincia)
Base temperature
C4 grasses
Leaf appearance
Leaf growth
Leaf lifespan
Temperatura base
Crecimiento foliar
Vida media foliar
description Understanding the mechanisms by which some C4 grasses grow more than others at moderately low temperatures (~12-20°C) is valuable to select materials to lengthen the growing season. In turn, the determination of leaf lifespan for each material to be used is relevant to optimize the balance between herbage production and herbage utilization. The objectives of this study were to analyze the growth capacity and the leaf lifespan in two native materials (Pappophorum caespitosum and Trichloris crinita) and in four materials introduced (Cenchrus ciliaris cv. 'Texas-4464', Cenchrus ciliaris cv. 'Bella', Panicum coloratum cv. 'Klein' and Panicum maximum cv. 'Gatton Panic') commonly used in Argentina. Under non-limiting growth conditions, the rate of leaf appearance and leaf elongation, the number of growing leaves and the leaf lifespan, were measured. The materials showed similar leaf growth capacity through contrasting mechanisms: while three of them (P. coloratum, P. maximum and P. caespitosum) showed higher growth of individual leaves, the rest (C. ciliaris cv. 'Texas-4464', C. ciliaris cv. 'Bella' and T. crinita) showed higher number of growing leaves. The leaf lifespan was not significantly different between materials evaluated. Interestingly, in agreement with previous results obtained in a comparison of C3 grasses, it was observed that materials possessing a greater number of growing leaves had lower values of leaf lifespan.
format article
Artículo
Artículo
publishedVersion
author Berone, Germán D.
author_facet Berone, Germán D.
author_sort Berone, Germán D.
title Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
title_short Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
title_full Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
title_fullStr Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
title_full_unstemmed Leaf expansion and leaf turnover of perennial C4 grasses growing at moderately low temperatures
title_sort leaf expansion and leaf turnover of perennial c4 grasses growing at moderately low temperatures
publisher Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
publishDate 2016
url http://bdigital.uncu.edu.ar/8478
work_keys_str_mv AT beronegermand leafexpansionandleafturnoverofperennialc4grassesgrowingatmoderatelylowtemperatures
AT beronegermand expansionyrecambiofoliardegramineasperennesc4creciendoatemperaturasmoderadamentebajas
bdutipo_str Repositorios
_version_ 1764820406072508417

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