A completely revised and rewritten edition of this comprehensive survey of the botanical
problems of pollination ecology approached from both a theoretical and a practical …

Because of their importance in agriculture and horticulture, plant weeds' have b the subject
of much research, largely directed towards the discovery of methods f their elimination …

The overwhelming majority of biologists who have studied both the origin of races and
species and major trends of evolution in animals have reached the conclusion, in agreement …

A model for the evolution of gynodioecy from the hermaphrodite or monoecious condition is
described, taking into account the effects of partial selfing and inbreeding depression. It is …

Apomixis in Plants presents a comprehensive review of different aspects of asexual seed
formation in plants. This is important in plant research since apomixis could greatly facilitate …

Advances in plant cell molecular biology have considerably increased our understanding of
pollen-pistil barriers, particularly those operated by incompatibility mechanisms, and, at the …

Dioecy, characterized by the presence of distinct male and female plants, is widespread in
angiosperms, being known in 37 out of Engler & Prantl's 51 orders (132). Yet botanists have …

In this valuable reference book, which coordinates numerous studies, the author stresses
the relevance of embryological studies to plant breeders. There is a short introduction …

Herkogamy is the spatial separation of pollen presentation and pollen receipt within or
between blossoms of an individual plant. Several classes of herkogamy are recognised; …

This book aims to up-date our present understanding of the origin of cultivated rice and in
doing so involves different disciplines of biology and the archaeological-historical sciences …