Yahoo Search Busca da Web

Resultado da Busca

  1. Fertilisation of Orchids is a book by English naturalist Charles Darwin published on 15 May 1862 under the full explanatory title On the Various Contrivances by Which British and Foreign Orchids Are Fertilised by Insects, and On the Good Effects of Intercrossing.

    • Charles Darwin
    • 1862
  2. Fertilization of Orchids é um livro do naturalista inglês Charles Darwin publicado em 15 de maio de 1862 sob o título explicativo completo sobre os vários artifícios pelos quais orquídeas britânicas e estrangeiras são fertilizadas por insetos e sobre os bons efeitos do cruzamento.

  3. Fertilization of Orchids é um livro do naturalista inglês Charles Darwin publicado em 15 de maio de 1862 sob o título explicativo completo sobre os vários artifícios pelos quais orquídeas britânicas e estrangeiras são fertilizadas por insetos e sobre os bons efeitos do cruzamento.

  4. 1 de set. de 2021 · In this regard, propagation in vitro is one of the most important breeding methods for orchids, as orchid seeds are difficult to reproduce in the natural environment. Seed maturity, culture conditions, and culture media are key factors affecting the efficiency of in vitro propagation.

    • Chengru Li, Na Dong, Yamei Zhao, Shasha Wu, Zhongjian Liu, Junwen Zhai
    • 2021
  5. TLDR. Direct observations, infra-red cinematography and photographs published between 1993 and 1997 and a video made in 2004, proved that Darwin's prediction was accurate and suggested that selection pressure exerted by predators on the pollinators, resulted in the evolution of extreme tongue lengths and a special hovering flight. Expand.

  6. It was concerned with working out in detail the relationships between sexual structures of orchids and the insects which fertilise them, their evolution being attributed to natural selection. It is therefore the first of the volumes of supporting evidence.

  7. Fertilisation of Orchids (1862 and 1877) An introduction by Gordon Chancellor. During the 1840s and early 1850s Charles Darwin established his scientific reputation with a series of books based on his Beagle discoveries, while privately developing his theory of evolution by natural selection.