Effects of seed mass and light on seedling success in Artemisia sieversiana Willd in the Tibetan Plateau

• Autorzy: Wu G. , Li W. , Du G.
• Języki publikacji: EN

Abstrakty

EN

Seed mass and light availability are important factors which affect seedling recruitment in plant populations. Effects of seed mass and light availability on seed germination and seedling recruitment in Artemisia sieversiana Willd, which is a widely distributed herbs and a common component species in alpine meadows of the Tibetan Plateau, were tested in a manipulative field experiment. Our research indicated that seed mass and light significantly affected seed germination and seedling emergence and survival and there was a significant interaction effect between seed mass and light availability on these life traits within species. Our study showed that larger seeds presented significant advantages in germination, seedling emergence and survival than smaller seeds under different light availability, especially under deep shade. Our results suggested that seedling success of Artemisia sieversiana appears to be regulated by an interactive effect of seed mass and light availability in alpine meadow of the Qinghai-Tibetan Plateau. In addition, seedlings from larger seeds have more and more stronger advantages from germination, emergence to survival stage than seedlings from smaller seed within species.

Słowa kluczowe

EN

Artemisia sieversiana Willd.; emergence; germination; light; seed mass; seedling; survival

PL

bylica; kiełkowanie; masa nasion; przetrwanie; siewka; światło

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2010
• Tom: Vol. 58, nr 3
• Strony: 469--474
• Opis fizyczny: Bibliogr. 28 poz.,Tab., wykr.,

Twórcy

autor

Wu G.

autor

Li W.

autor

Du G.

• State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100 Shaanxi, P. R. China ; Key Laboratory of Arid and Grassland Ecology of the Ministry of Education, Lanzhou University, Lanzhou, 730000,

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