By Theodore F. Niehaus

ISBN-10: 0395936128

ISBN-13: 9780395936122

Этот справочник охватывает 1505 видов дикорастущих цветов, группируя их по окраске и внешнему виду для облегчения сопоставления растений и их изображений. Книга содержит более 1500 иллюстраций.
Доп. информация: Файл является рипом с сайта Google Books. Этим определяется отсутствие некоторых страниц (до 20% от общего числа) и невысокое разрешение сканирования (около a hundred dpi).

Read Online or Download A Field Guide to Southwestern and Texas Wildflowers PDF

Best plants books

New PDF release: Selection: The Mechanism of Evolution, 2 e

This publication adopts an experimental method of figuring out the mechanisms of evolution and the character of evolutionary procedures, with examples drawn from microbial, plant and animal platforms. It comprises insights from striking contemporary advances in theoretical modeling, and the fields of molecular genetics and environmental genomics.

Download PDF by A. Poljakoff-Mayber, J. Gale (auth.), A. Poljakoff-Mayber,: Plants in Saline Environments

A. POLJAKOFF-MAYBER and J. GALE The reaction of crops to saline environments is of curiosity to humans of many disciplines. In agriculture the matter of salinity turns into extra critical each year because the non-saline soils and the non-saline waters develop into extra intensively and extra widely exploited. additional growth of agriculture needs to ponder the cultivation of saline soils and using water with a comparatively excessive content material of soluble, salts.

New PDF release: Endemism in Vascular Plants

The ebook is the 1st finished research of the macroecology and geobotany of endemic vascular crops with case-studies and analyses from diverse areas on this planet. Endemism is a pre-extinction phenomenon. Endemics are threatened with extinction. as a result of overseas nature conservation rules and because of the conception of the general public the concept’s significance is expanding.

Read e-book online Genetics and Molecular Biology of Entomopathogenic Fungi PDF

The ebook consistently publishes very important experiences of the broadest curiosity to geneticists and their colleagues in affiliated disciplines, seriously examining destiny directions,This thematic quantity specializes in the advances and the longer term power of the quickly turning out to be box of entomopathogenic fungi.

Additional resources for A Field Guide to Southwestern and Texas Wildflowers

Sample text

A general characpermit informed speculation about the nature of the teristic of the mutations is that they cause havoc on proteins triggering sex expression (Sawhney, Chen the floral meristem as a whole, rather than specific and Sussex 1985; Bassett, Mothershed and Galau defects on the individual floral organs. Although 1988; Galli et al 1988; Bhadula and Sawhney 1989a; abnormalities in floral structure are usually held in Bommineni et al 1990; Rembur et al 1992; Thompson- abeyance in the wild type, mutations affect the difCoffe et al 1992).

For example, in cultured floral meristems of tobacco, excision of the territory of the sepals and petals or suppression of growth of the sepals and petals interferes with (i) Timing of Anther Determination the formation of stamens (McHughen 1980). It also In an early study, stamen development was mon- appears that developmental interactions between itored in flower buds of Aquilegia formosa floral organs affect the initiation of stamens. Tepfer (Ranunculaceae), in various stages of development, et al (1963) found that in cultured flower buds of A.

Tocols to obtain normal plants. Among the methods 14 Since the 1930s, advances made in the fields of plant physiology, biochemistry, and genetics, and refinements in the culture of plant organs, tissues, cells, and protoplasts under aseptic conditions have had much influence on the direction of embryological research. The outcome of research in these fields introduced the discipline of experimental embryology, involving the control of pollination and fertilization and manipulations of the anther, pollen grains, ovary, ovule, and embryo by excision and culture, by chemical, hormonal, and surgical treatments, and by exposure to selected day-lengths and temperature conditions, as a way to study the controlling mechanisms that affect the form and structure of plant reproductive organs.

Download PDF sample

A Field Guide to Southwestern and Texas Wildflowers by Theodore F. Niehaus

by Robert

Rated 4.59 of 5 – based on 30 votes