Titlebook: Embryology of Angiosperms; Brij Mohan Johri Book 1984 Springer-Verlag Berlin Heidelberg 1984 embryo.embryology.reproductive system

Resign

https://doi.org/10.1007/978-3-658-34122-0d anomaly of reproduction is “amphimixis”, i.e., sexual reproduction. Orginally, Winkler (1908) defined apomixis in a wider sense, including vivipary, pseudovivipary, and other forms of vegetative propagation such as bulbils, runners, rhizomes, etc. This broader definition is now rather rarely used.

搖曳

phase-2-enzyme

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Julia Hitzenberger,Susanne Schuett each other separated by a period of relative metabolic inactivity called quiescence, and are essentially different phases of the continuing process of embryo growth and development. Obviously, the nature of the pre-quiescence embryo bears very heavily on early germination behaviour and its control,

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Ralf Hilgenstock,Renate Jirmannndeed, comparative embryology has been an important factor in revealing the relationships of taxa at all levels, and many contributions from this field have been summarized in the writings of Maheshwari (1950, 1963), Davis (1966), Johri (1967, 1970), Palser (1975), Poddubnaya-Arnoldi (1976), Kapil a

纖細(xì)

Mitarbeiterführung und Kommunikationf certain plants with spores of ., dead pollinia, and aqueous extracts of pollen. It was suspected that the pollen tube, apart from carrying the sperm nuclei, also contributes to the growth of ovary by supplying auxins. Rechinger (1893) placed root pieces of beet and dandelion, and stem segments of

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Mitarbeiterführung mit dem LEAD-Navigator?The structures and functions described in earlier chapters give a good idea about our present knowledge of sexual reproduction in angiosperms.