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Article: Imprimé

Pollination biology of Paeonia jishanensis T. Hong & W.Z. Zhao (Paeoniaceae), with special emphasis on pollen and stigma biology / L. Zhou-Shi in Botanical journal of the Linnean Society, 130 (1) (05/1999)

Article (1999)

[article]
inBotanical journal of the Linnean Society > 130 (1) (05/1999) . - 43-52

Titre :	Pollination biology of Paeonia jishanensis T. Hong & W.Z. Zhao (Paeoniaceae), with special emphasis on pollen and stigma biology
Type de document :	Imprimé
Auteurs :	L. Zhou-Shi ; Y. Hong-De ; Y. Pan-Kai
Année de publication :	1999
Article en page(s) :	43-52
Langues :	Anglais (eng)
Catégories :	[CBNPMP-Thématique] Biologie de la reproduction
Mots-clés :	Paeonia
Résumé :	The endangered wild tree peony. Paeania jishanensis T. Hong & W. Z. Zhao (formerly P. suffruticosa Andr. ssp. spontanea (Rehd.) S.G. Haw & L. A. Lauener) is one of the most important ancestral stocks of cultivated tree peony, P. suffruticosa Andr. Study of the natural population atjishan, Shanxi Province revealed that the seed set was very low (2.1 seeds per carpel). The low seed set should not be attributed to viable pollen limitation because the plant produces a great quantity of pollen and 36–75% of pollen is TTC-tested viable. Stigmas became receptive almost one day after the flower opened, and receptivity lasted for several days. All the stigmas were sufficiently pollinated, and pollen germinated readily on the wet crest of stigmas irrespective of whether cross pollen or self pollen was used. Hand-pollination showed that this plant was self-incompatible. No seed was harvested after self-pollination, while cross-pollination yielded 2.4 seeds per carpel. Many pollen tubes were recorded in the stigma but extremely few in the ovary chamber. This phenomenon indicated diat the self-incompatible system was activated when pollen tubes reached the ovary wall.
Lien pérenne :	DOI : 10.1111/j.1095-8339.1999.tb00781.x
Permalink :	https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137637

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Article (1999) - URL

Article (1999)

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