Pre Fertilization Ovule Ontogeny And Nutrition In The Garden Pea

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Pre-fertilization Ovule Ontogeny and Nutrition in the Garden Pea

Author : Stanley Michael Wiatr
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)

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Book Synopsis Pre-fertilization Ovule Ontogeny and Nutrition in the Garden Pea by : Stanley Michael Wiatr

Download or read book Pre-fertilization Ovule Ontogeny and Nutrition in the Garden Pea written by Stanley Michael Wiatr and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A -Study of pre-fertilization ovule ontogeny in Pisum sativum was made using improved microtechnical methods. Reexamination of megasporogenesis and megagametogenesis confirms earlier observations; the megasporocyte divides meiotically to produce a chalazal functional megaspore and three degenerative megaspores. Non-functional megaspore degradation is staggered; two chalazal megaspores are the first to degenerate while the third degenerative megaspore persists during initial expansion of the functional megaspore. An eight-nucleate, seven-celled embryo sac is produced by the functional megaspore after three sets of mitotic divisions. Ephemeral antipodals in the chalazal end of the embryo sac degenerate well before fertilization. The presence of wall ingrowths in the synergids is documented for Pisum.Nucellar degradation is closely correlated with megagametcphyte expansion and follows a sequential pattern of cytological changes involving cell wall thickening, starch mobilization, wall degradation, alteration of cytoplasm, and obliteration of nucellar cell structural integrity. The possibility of gametophytic regulation of nucellar cell breakdov7n is discussed. P is urn ovules are bitegmic. Both integuments are initiated in epidermal cells, but subsequent differentiation is radically different. A single vascular strand enters the ovule and terminates in the outer integument. Procambium is already organized when a megasporocyte is present. Vascular differentiation is correlated with the onset of megagametogenesis, but maturation of xylem and phloem by the time an embryo sac has organized is minimal. The relationships of integument and vascular ontogeny to embryo sac nutrition are discussed. A scheme of megagametophyte nutrition is proposed whereby the megagametophyte obtains all necessary nutrients from degenerate nucellus, in contrast to classical schemes of direct involvement by the parent sporophyte in embryo sac nutrition.

Canadiana

Author :
Publisher :
ISBN 13 :
Total Pages : 1232 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Canadiana by :

Download or read book Canadiana written by and published by . This book was released on 1975 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Canadian Theses

Author : National Library of Canada
Publisher :
ISBN 13 :
Total Pages : 720 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Canadian Theses by : National Library of Canada

Download or read book Canadian Theses written by National Library of Canada and published by . This book was released on 1980 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Comparative Embryology of Angiosperms Vol. 1/2

Author : Brij M. Johri
Publisher : Springer Science & Business Media
ISBN 13 : 3642763952
Total Pages : 1243 pages
Book Rating : 4.6/5 (427 download)

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Book Synopsis Comparative Embryology of Angiosperms Vol. 1/2 by : Brij M. Johri

Download or read book Comparative Embryology of Angiosperms Vol. 1/2 written by Brij M. Johri and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 1243 pages. Available in PDF, EPUB and Kindle. Book excerpt: COMPARATIVE EMBRYOLOGY OF ANGIOSPERMS is a review of the developmental processes leading to sexual reproduction in flowering plants. On the basis of embryological data and certain evidences from other areas of study, it lays special emphasis on the relationship among and within the families and orders of angiosperms. Occasionally, inaccuracies in observation and interpretation are pointed out, alternative interpretations offered, gaps in our knowledge highlighted, and prospects outlined. The text is documented with 36 tables, 376 figures, and about 5000 literature citations, which contribute to making this book comprehensive. Besides students and research workers interested in angiosperm embyology, taxonomists, plant breeders, agriculturists, and horticulturists will also find much useful information in this treatise.

Plant Anatomy and Embryology

Author : Pandey S.N. & Chadha A.
Publisher : Vikas Publishing House
ISBN 13 : 9788125902409
Total Pages : 480 pages
Book Rating : 4.9/5 (24 download)

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Book Synopsis Plant Anatomy and Embryology by : Pandey S.N. & Chadha A.

Download or read book Plant Anatomy and Embryology written by Pandey S.N. & Chadha A. and published by Vikas Publishing House. This book was released on 2009-11 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book, by virtue of its authoritative coverage, should be most suitable to undergraduate as well as postgraduate students of all universities and also to those appearing for various competitive examinations such as CPMT, DME, DCS and IAS.

Pollination Mechanisms, Reproduction and Plant Breeding

Author : R. Frankel
Publisher : Springer Science & Business Media
ISBN 13 : 3642810594
Total Pages : 294 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Pollination Mechanisms, Reproduction and Plant Breeding by : R. Frankel

Download or read book Pollination Mechanisms, Reproduction and Plant Breeding written by R. Frankel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: view than its own proper males should fecundate each blossom." ANDREW KNIGHT Philosophical Transactions, 1799 Pollination mechanisms and reproduction have a decisive bearing upon rational procedures in plant breeding and crop production. This book intends to furnish' under one cover an integrated botanical, genetical and breeding-methodologi cal treatment of the reproductive biology of spermatophytes mainly angiosperms; it is based on an advanced topical course in plant breeding taught at the Hebrew University of Jerusa lem. We have tried to present a coverage which is concise, but as comprehensive as possible, of the pollination mechanism and modes of reproduction of higher plants, and to illustrate topics, whenever practicable, by examples from cultivated plants. Nevertheless, some relevant publications may have escaped our attention or may not be mentioned because of various limitations. The book is organized into three parts. The first part starts with an evaluation of the significance of the different pollination mechanisms for plant breeding and crop produc tion, describes modes of reproduction in higher plants and discusses ecology and dynamics of pollination. The second part is devoted to crops propagated by self pollination and describes specific breeding procedures for such crops. The third part details sexual reproduction in higher plants and handles three mechanisms involved in the prevention of self pollination and their utilization in plant breeding: sex expres sion, incompatibility, and male sterility.

Cotton Physiology

Author : Jack R. Mauney
Publisher :
ISBN 13 :
Total Pages : 840 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Cotton Physiology by : Jack R. Mauney

Download or read book Cotton Physiology written by Jack R. Mauney and published by . This book was released on 1986 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Facts on File Dictionary of Botany

Author : Jill Bailey
Publisher : Infobase Publishing
ISBN 13 : 1438109377
Total Pages : 256 pages
Book Rating : 4.4/5 (381 download)

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Book Synopsis The Facts on File Dictionary of Botany by : Jill Bailey

Download or read book The Facts on File Dictionary of Botany written by Jill Bailey and published by Infobase Publishing. This book was released on 2014-05-14 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dictionary containing over 2,000 terms and concepts related to botany.

Morphology of Angiosperms

Author : John Merle Coulter
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.A/5 ( download)

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Book Synopsis Morphology of Angiosperms by : John Merle Coulter

Download or read book Morphology of Angiosperms written by John Merle Coulter and published by . This book was released on 1903 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Morphology of Gymnosperms

Author : John Merle Coulter
Publisher :
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Morphology of Gymnosperms by : John Merle Coulter

Download or read book Morphology of Gymnosperms written by John Merle Coulter and published by . This book was released on 1910 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Vegetables and Vegetable Processing

Author : Muhammad Siddiq
Publisher : John Wiley & Sons
ISBN 13 : 1119098947
Total Pages : 1104 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Handbook of Vegetables and Vegetable Processing by : Muhammad Siddiq

Download or read book Handbook of Vegetables and Vegetable Processing written by Muhammad Siddiq and published by John Wiley & Sons. This book was released on 2018-02-23 with total page 1104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Vegetables and Vegetable Processing, Second Edition is the most comprehensive guide on vegetable technology for processors, producers, and users of vegetables in food manufacturing.This complete handbook contains 42 chapters across two volumes, contributed by field experts from across the world. It provides contemporary information that brings together current knowledge and practices in the value-chain of vegetables from production through consumption. The book is unique in the sense that it includes coverage of production and postharvest technologies, innovative processing technologies, packaging, and quality management. Handbook of Vegetables and Vegetable Processing, Second Edition covers recent developments in the areas of vegetable breeding and production, postharvest physiology and storage, packaging and shelf life extension, and traditional and novel processing technologies (high-pressure processing, pulse-electric field, membrane separation, and ohmic heating). It also offers in-depth coverage of processing, packaging, and the nutritional quality of vegetables as well as information on a broader spectrum of vegetable production and processing science and technology. Coverage includes biology and classification, physiology, biochemistry, flavor and sensory properties, microbial safety and HACCP principles, nutrient and bioactive properties In-depth descriptions of key processes including, minimal processing, freezing, pasteurization and aseptic processing, fermentation, drying, packaging, and application of new technologies Entire chapters devoted to important aspects of over 20 major commercial vegetables including avocado, table olives, and textured vegetable proteins This important book will appeal to anyone studying or involved in food technology, food science, food packaging, applied nutrition, biosystems and agricultural engineering, biotechnology, horticulture, food biochemistry, plant biology, and postharvest physiology.

Physiology of Cotton

Author : James McD. Stewart
Publisher : Springer Science & Business Media
ISBN 13 : 9048131952
Total Pages : 573 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Physiology of Cotton by : James McD. Stewart

Download or read book Physiology of Cotton written by James McD. Stewart and published by Springer Science & Business Media. This book was released on 2009-11-04 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cotton production today is not to be undertaken frivolously if one expects to profit by its production. If cotton production is to be sustainable and produced profitably, it is essential to be knowledgeable about the growth and development of the cotton plant and in the adaptation of cultivars to the region as well as the technology available. In addition, those individuals involved in growing cotton should be familiar with the use of management aids to know the most profitable time to irrigate, apply plant growth regulators, herbicides, foliar fertilizers, insecticides, defoliants, etc. The chapters in this book were assembled to provide those dealing with the production of cotton with the basic knowledge of the physiology of the plant required to manage the cotton crop in a profitable manner.

Plant Biotechnology, Volume 2

Author : Sangita Sahni
Publisher : CRC Press
ISBN 13 : 135181947X
Total Pages : 356 pages
Book Rating : 4.3/5 (518 download)

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Book Synopsis Plant Biotechnology, Volume 2 by : Sangita Sahni

Download or read book Plant Biotechnology, Volume 2 written by Sangita Sahni and published by CRC Press. This book was released on 2017-12-22 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the second of the new two-volume Plant Biotechnology set. This volume covers many recent advances in the development of transgenic plants that have revolutionized our concepts of sustainable food production, cost-effective alternative energy strategies, microbial biofertilizers and biopesticides, and disease diagnostics through plant biotechnology. With the advancements in plant biotechnology, many of the customary approaches are out of date, and an understanding of new updated approaches is needed. This volume presents information related to recent methods of genetic transformation, gene silencing, development of transgenic crops, biosafety issues, microbial biotechnology, oxidative stress, and plant disease diagnostics and management. Key features: Provides an in-depth knowledge of various techniques of genetic transformation of plants, chloroplast, and fungus Describes advances in gene silencing in plants Discusses transgenic plants for various traits and their application in crop improvement Looks at genetically modified foods and biodiesel production Describes biotechnological approaches in horticultural and ornamental plants Explores the biosafety aspect associated with transgenic crops Considers the role of microbes in sustainable agriculture

Seeds

Author : J. Derek Bewley
Publisher : Springer Science & Business Media
ISBN 13 : 1461446937
Total Pages : 400 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Seeds by : J. Derek Bewley

Download or read book Seeds written by J. Derek Bewley and published by Springer Science & Business Media. This book was released on 2012-10-23 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and much revised third edition of Seeds: Physiology of Development, Germination and Dormancy provides a thorough overview of seed biology and incorporates much of the progress that has been made during the past fifteen years. With an emphasis on placing information in the context of the seed, this new edition includes recent advances in the areas of molecular biology of development and germination, as well as fresh insights into dormancy, ecophysiology, desiccation tolerance, and longevity. Authored by preeminent authorities in the field, this book is an invaluable resource for researchers, teachers, and students interested in the diverse aspects of seed biology.

Pollination of Cultivated Plants in the Tropics

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251036594
Total Pages : 216 pages
Book Rating : 4.0/5 (365 download)

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Book Synopsis Pollination of Cultivated Plants in the Tropics by : Food and Agriculture Organization of the United Nations

Download or read book Pollination of Cultivated Plants in the Tropics written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1995 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin, based on contributions from various contributors and edited by Dr. D.W. Roubik, introduces the reader to various aspects of natural and insect pollination. It discusses the pollinators themselves, and the ecological and economic importance of pollination, as well as applied pollination in temperate, tropical oceanic islands and mainland tropics, and alternatives to artificial pollinator populations. Prospects for the future are also discussed. Chapter 2 deals with successful pollination with pollinator populations, the evaluation of pollinators and floral biology and research techniques. The behaviour of pollinators and plant phenology and various case studies on the preparation of pollinators for use in tropical agriculture are also discussed. A glossary and various appendices regarding cultivated and semi-cultivated plants in the tropics, pollination contracts and levels of safety of pesticides for bees and other pollinators are included.

Genetic control of self-incompatibility and reproductive development in flowering plants

Author : Elizabeth G. Williams
Publisher : Springer Science & Business Media
ISBN 13 : 9401716692
Total Pages : 545 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Genetic control of self-incompatibility and reproductive development in flowering plants by : Elizabeth G. Williams

Download or read book Genetic control of self-incompatibility and reproductive development in flowering plants written by Elizabeth G. Williams and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant reproductive biology has undergone a revolution during the past five years, with the cloning, sequencing and localization of the genes important in reproduction. These advantages in plant molecular biology have led to exciting applications in plant biotechnology, including the genetic engineering of male sterility and other reproductive processes. This book presents an interesting and contemporary account of these new developments from the scientists in whose laboratories they have been made. The chapters focus on two areas: the molecular biology of self-incompatibility, which is the system of self-recognition controlled by the S-gene and related genes; and the cellular and molecular biology of pollen development and genetic dissection of male sterility. Some chapters feature Arabidopsis, with its unique genetic system. Reproduction is vital for seed production in crop plants, and this book presents new approaches to manipulate plant breeding systems for the 21st century.

In Vitro Embryogenesis in Plants

Author : Trevor A. Thorpe
Publisher : Springer Science & Business Media
ISBN 13 : 9401104859
Total Pages : 560 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis In Vitro Embryogenesis in Plants by : Trevor A. Thorpe

Download or read book In Vitro Embryogenesis in Plants written by Trevor A. Thorpe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: In vitro Embryogenesis in Plants is the first book devoted exclusively to this topic. As the ultimate demonstration of totipotency in plants, somatic and haploid embryogenesis is of vital importance to all those working on or interested in basic and applied aspects of plantlet information and regeneration. The text includes comprehensive reviews written by experts, on all facts of in vitro and in vivo embryogenesis. Some chapters deal with the morphogenic, structural and developmental, physiological and biochemical, and molecular biological aspects of the subject. Chapters are also devoted to haploid embryogenesis, asexual embryogenesis in nature, zygotic embryogenesis, and zygotic embryo culture. Detailed tables summarizing successful somatic embryogenesis in all vascular plants are also included. This book, therefore, brings together previously scattered information to provide an indispensable reference book for both active researchers, graduate students and anyone interested in this aspect of tissue culture technology and plant development.