CheneBelgiqueV2, Main, Exploration, bibRecord, 001225

Importance of seed size for the establishment of seedlings of five deciduous broad-leaved tree species

Identifieur interne : 001225 ( Main/Exploration ); précédent : 001224; suivant : 001226

Importance of seed size for the establishment of seedlings of five deciduous broad-leaved tree species

Auteurs : Kenji Seiwa [Japon] ; Kihachiro Kikuzawa [Japon]

Source :

Vegetatio [ 0042-3106 ] ; 1996-03-01.

RBID : ISTEX:09BB4845E40D434C1DAEBC5C5A73F755BC8957BE

Abstract

Abstract: Effects of seed size and phenology on the establishment of five deciduous broad-leaved tree species were examined in deciduous woodland. Treatments included absence and presence of litter in the forest understory, a small gap, and a large gap. Seedling emergence of large-seeded speciesQuercus mongolica var.grosseserrata andAcer mono was not reduced by accumulation of litter in the forest understory, but was promoted in the large gap where litter was less. Seedling emergence of small-seeded species,Alnus hirsuta, Cercidiphyllum japonicum andBetula platyphylla var.japonica, was reduced by the litter in almost all of the sites. Seedlings of large-seeded species avoid shade stress phenologically by unfolding all of their large leaves in a short period before canopy closure in the forest understory. These species had little mortality after seedling emergence. In contrast, small-seeded species have a longer duration of leaf emergence, shorter leaf longevity, and rapid leaf turnover in all the sites. These seedlings attained similar height to those of the large-seeded species at the end of the second year in the large gap, but survival and height growth rate decreased after canopy closure in the forest understory. We suggest that the importance of seed size in determining seedling establishment largely depends on the relationships between seasonal changes of environmental conditions and phenological traits of seedlings, which are related to seed size.

Url:

https://api.istex.fr/document/09BB4845E40D434C1DAEBC5C5A73F755BC8957BE/fulltext/pdf

DOI: 10.1007/BF00044887

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: Effects of seed size and phenology on the establishment of five deciduous broad-leaved tree species were examined in deciduous woodland. Treatments included absence and presence of litter in the forest understory, a small gap, and a large gap. Seedling emergence of large-seeded speciesQuercus mongolica var.grosseserrata andAcer mono was not reduced by accumulation of litter in the forest understory, but was promoted in the large gap where litter was less. Seedling emergence of small-seeded species,Alnus hirsuta, Cercidiphyllum japonicum andBetula platyphylla var.japonica, was reduced by the litter in almost all of the sites. Seedlings of large-seeded species avoid shade stress phenologically by unfolding all of their large leaves in a short period before canopy closure in the forest understory. These species had little mortality after seedling emergence. In contrast, small-seeded species have a longer duration of leaf emergence, shorter leaf longevity, and rapid leaf turnover in all the sites. These seedlings attained similar height to those of the large-seeded species at the end of the second year in the large gap, but survival and height growth rate decreased after canopy closure in the forest understory. We suggest that the importance of seed size in determining seedling establishment largely depends on the relationships between seasonal changes of environmental conditions and phenological traits of seedlings, which are related to seed size.</div>
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Importance of seed size for the establishment of seedlings of five deciduous broad-leaved tree species

Importance of seed size for the establishment of seedlings of five deciduous broad-leaved tree species

Source :

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri