Author: Youssef Youssef Klaimi
Publisher:
ISBN:
Category : Plant genetics
Languages : en
Pages : 218

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Author: ShiYing Wang
Publisher:
ISBN:
Category : Vernalization
Languages : en
Pages : 152

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Book Description

Author: Bibhas Chandra Mazumdar
Publisher:
ISBN: 9788170353638
Category : Science
Languages : en
Pages : 200

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Book Description
Photoperiodism and vernalization are fascinating areas in plant physiology. The phenomena were conceived as the expedients to switch on flowering in plants but with passage of time, divulged intricacies establishing as exponents to a wider range of functional processes in them. Despite much of the complexities on the living processes in plants have been discovered by delving into these areas, much remains to be unravelled. The present title has brought forward the diverse features of these disciplines to the students and buding scientists of plant physiology in a simplified form to arouse their interest and gain ground for deeper understanding into these spheres. Contents Part I: Photoperiodism Chapter 1: Physical Aspects of Light and its Role in Plants; Physical aspect of light; How light affect plants; Chapter 2: Photoperiodism; Historical aspects; Definition and concept; Photoperiodic groups of plants; Maturity of plants for photoperiodic responses; Requirement of the number of photo inductive cycles; Photoperiodic induction; Site of perception of photoperiodic stimulus; Role of dark and light periods in photoperodic cycles; Role of light quality and phytochrome; Time measurement by plants; Mechanism of photoperiodism; Genetic approach of photoperiodic response in plants; Photoperiodic effects other than flowering; Practical utilization of photoperiodism; Review of terminology. Part II: Vernalization Chapter 1: Physical Aspects of Heat and its Role in Plants; Physical aspect of heat; How heat affect plants; Chapter 2: Vernalization; Historical aspect; Definition and concept; Quantitative and qualitative responses; Examples of vernalizable seeds and plants; Site of perception of vernalization stimulus; Maturity factor in vernalization; Technique of vernalization of seeds and other plant parts; Induction of vernalization effect; Reversibility of vernalization response; Mechanism of vernalization; Genetic approach of vernalization; Practical utilization of vernalization; Relationship between vernalization and photoperiodism.

Author: Alexander Whittal
Publisher:
ISBN:
Category :
Languages : en
Pages :

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In wheat (Triticum aestivum L.), major determinants of plant phenology are physiological responses to vernalization temperature, and day length (photoperiod), conditioned by VRN and the PPD genes, respectively. The objectives of this research were to characterize the allelic variation at the major VRN and PPD loci in a diverse panel of winter wheat genotypes (n = 208) and to associate the allelic variation with phenologic, agronomic and adaptation traits. The panel was genotyped using allele-specific markers of the major VRN and PPD loci; VRN-A1, VRN-B1, VRN-D1, VRN-B3, PPD-A1, PPD-B1, and PPD-D1. The photoperiod-sensitive alleles Ppd-D1b and Ppd-A1b were present in 127 and 166 genotypes, respectively. Genotypes with different alleles at PPD-D1 and PPD-A1 varied for number of days to booting, heading, anthesis, and maturity as well as, height and yield. Variation at the VRN loci was minimal. Genotypes with photoperiod-insensitive alleles had higher stability for days to anthesis, than photoperiod-sensitive genotypes.

Author: Don Lee Keim
Publisher:
ISBN:
Category : Photoperiodism
Languages : en
Pages : 162

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Author: Jose Levy
Publisher:
ISBN:
Category :
Languages : en
Pages : 82

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Author: Abraham H. Halevy
Publisher: CRC Press
ISBN: 1351081012
Category : Science
Languages : en
Pages : 590

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Book Description
These volumes are an exhaustive source of information on the control and regulation of flowering. They present data on the factors controlling flower induction and how they may be affected by climate and chemical treatments. For each plant, specific information is provided on all aspects of flower development, including sex expression, requirements for flowering initiation and development, photoperiod, light density, vernalization, and other temperature effects and interactions. Individual species are described from the standpoint of juvenility and maturation, morphology, induction and morphogenesis to anthesis. All information is presented alphabetically for easy reference

Author: Jules Janick
Publisher: John Wiley & Sons
ISBN: 111806108X
Category : Science
Languages : en
Pages : 454

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Book Description
Plant Breeding Reviews is an ongoing series presenting state-of-the art review articles on research in plant genetics, especially the breeding of commercially important crops. Articles perform the valuable function of collecting, comparing, and contrasting the primary journal literature in order to form an overview of the topic. This detailed analysis bridges the gap between the specialized researcher and the broader community of plant scientists.

Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 696

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Book Description

Author: Muhammad Asif
Publisher: Springer Science & Business Media
ISBN: 3319050028
Category : Science
Languages : en
Pages : 82

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Book Description
Genetically uniform cultivars in many self-pollinated cereal crops dominate commercial production in high-input environments especially due to their high grain yields and wide geographical adaptation. These cultivars generally perform well under favorable and high-input farming systems but their optimal performance cannot be achieved on marginal/organic lands or without the use of external chemical inputs (fertilizers, herbicides and pesticides). Cereal breeding programs aim at evaluating candidate lines/cultivars for agronomic, disease and quality traits in a weed free environment that makes it impossible to identify traits conferring competitive ability against weeds. Moreover, quantification of competitive ability is a complex phenomenon which is affected by range of growth traits. Above (e.g. light) and below (e.g. water and nutrients) ground resources also influence competitiveness to a greater extent. Competitiveness is quantitatively inherited trait which is heavily influenced by many factors including genotype, management, environment and their interaction. Sound plant breeding techniques and good experimental designs are prerequisites for maximizing genetic gains to breed cultivars for organically managed lands. The brief is focused on breeding wheat for enhanced competitive ability along with other agronomic, genetic and molecular studies that have been undertaken to improve weed suppression, disease resistance and quality in organically managed lands. The examples from other cereals have also been highlighted to compare wheat with other cereal crops.