A remarkable number of the defining features of flowering plants are expressed during the life history stage between pollination and fertilization. Hand pollinations of Amborella trichopoda ...
IN the history of angiosperm embryology there have been three distinct periods: the first, in which the chief aim was to unravel the chief facts regarding the development of the pollen and embryo sac, ...
AbstractPersistence and adaptation in novel environments are limited by small population size, strong selection, and maladaptive gene flow. Mating system plasticity is common in angiosperms and may ...
Angiosperms (flowering plants) are the most diverse of all major lineages of land plants and the dominant autotrophs in most terrestrial ecosystems. Their evolutionary and ecological appearance is ...
Dr. Panchanan Maheshwari, an eminent botanist specialising in plant embryology, morphology and anatomy, plant physiology and biochemistry established the technique of test-tube fertilization of ...
In the flowering plant world, reproduction means an intricate succession of events. It begins when a pollen grain that carries the sperm cells lands on the top of the pistil, the female reproductive ...