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Screening Of Germplasm For Drought Tolerance And Formulation Of Selection Indices For Seed Yield In Soybean Glycine Maxlmerrill
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Book Synopsis Screening of Germplasm for Drought Tolerance and Formulation of Selection Indices for Seed Yield in Soybean (Glycine Max(L.)Merrill) by : KRISHANAN V
Download or read book Screening of Germplasm for Drought Tolerance and Formulation of Selection Indices for Seed Yield in Soybean (Glycine Max(L.)Merrill) written by KRISHANAN V and published by . This book was released on 1991 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variability and Selection Indices for Physiological and Agro-nomic Traits Contributing to Seed Yield in Soybean (Glycine Max(L) by : VIMALA DEVI S
Download or read book Genetic Variability and Selection Indices for Physiological and Agro-nomic Traits Contributing to Seed Yield in Soybean (Glycine Max(L) written by VIMALA DEVI S and published by . This book was released on 1993 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Genetic Variability and Formulation of Selection Indices for Yield in Soybean (Glycine Max (L.) Merrill) by : LAKSHMINARAYANA RAO N. A
Download or read book Analysis of Genetic Variability and Formulation of Selection Indices for Yield in Soybean (Glycine Max (L.) Merrill) written by LAKSHMINARAYANA RAO N. A and published by . This book was released on 1973 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variability for Drought Tolerance and Agronomic Traits Contributing to Seed Yield in Soybean (Glycine Max (L.) Merrill) by : N. P. Arunakumar
Download or read book Genetic Variability for Drought Tolerance and Agronomic Traits Contributing to Seed Yield in Soybean (Glycine Max (L.) Merrill) written by N. P. Arunakumar and published by . This book was released on 2008 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Variation for Physiological Traits Affecting Drought Tolerance Among Ontario-adapted Commercial Soybean [Glycine Max (L.) Merr.] Varieties Grown in 1-m Rooting Columns by : Michael Gebretsadik Gebre
Download or read book Genetic Variation for Physiological Traits Affecting Drought Tolerance Among Ontario-adapted Commercial Soybean [Glycine Max (L.) Merr.] Varieties Grown in 1-m Rooting Columns written by Michael Gebretsadik Gebre and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought stress significantly limits soybean production in Ontario. Identification of physiological traits to improve drought tolerance in soybean would benefit from controlled-environment phenotyping methods. It was hypothesized that elite Ontario-adapted soybean varieties would differ for drought tolerance. A greenhouse culture system was developed employing 1-m rooting columns filled with amended field soil, that presents field-like volumetric soil water content and rooting profiles by depth. Different levels of drought stress were simulated in this system by restoring soil water to 100% (control), 75% (mild stress) or 50% (drought stress) of the maximum soil water holding capacity by daily weighing and watering from first flower (R1) until maturity. The effect of applying fertilizer throughout the 1-m soil profile instead of confining it to the upper 30 cm was tested. Distributing fertilizer over the entire 1-m rooting depth resulted in deeper rooting and more soil water extraction at depth at the R1 stage; however, these effects did not persist until maturity and so did not affect drought tolerance. Fifteen Ontario-adapted commercial soybean varieties were compared for their drought tolerance, defined as the ratio of their seed yield under drought conditions compared to control conditions (seed yield ratio; SYR). Similar to the effects of drought in the field, pod number was by far the yield component most affected, with effects on seeds per pod and single-seed weight being relatively minor. Based on their SYR, two drought-sensitive varieties (Saska and OAC Drayton) and three drought-tolerant varieties (OAC Lakeview, OAC Champion, and PRO 2715R) were identified. Principal components analysis showed that drought-tolerant varieties were those that maintained relatively high water use, shoot dry matter, and pod number under stress. Varieties differed for root biomass distribution by depth, but not for soil water extraction profiles, and there was no evidence that differences in drought tolerance were associated with rooting traits among these fifteen varieties. This study helps define the physiological basis of soybean variety differences in drought tolerance, and provides novel phenotyping tools for soybean breeders to select for root function and yield formation traits that could improve soybean yield under drought stress.
Book Synopsis Genetic Variability and Selection Indices for Physiological and Agronomic Traits Contributing to Seed Yield in Soybean (Glycine Max (L.) Merrill). by : S.Vimala Devi
Download or read book Genetic Variability and Selection Indices for Physiological and Agronomic Traits Contributing to Seed Yield in Soybean (Glycine Max (L.) Merrill). written by S.Vimala Devi and published by . This book was released on 1993 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selection of Drought-tolerant Soybean Lines Using a Field Screening Method and Identification of QTLs for Slow Wilting and Nitrogen Fixation Associated with Drought-tolerance by : Mirta Beatriz Dalzotto
Download or read book Selection of Drought-tolerant Soybean Lines Using a Field Screening Method and Identification of QTLs for Slow Wilting and Nitrogen Fixation Associated with Drought-tolerance written by Mirta Beatriz Dalzotto and published by . This book was released on 2016 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drought causes significant yield reductions in soybean. The development of drought-tolerant cultivars is an effective alternative to overcome this abiotic stress. Slow wilting, prolonged nitrogen fixation, and minimal yield reduction under water stress play an important role in evaluating breeding materials. Despite advances in knowledge about plant responses to drought conditions, there is little information on effective methodologies for phenotype screening in the field, and some QTLs have been identified for drought tolerance. Field screenings under drought and irrigated conditions are necessary to detect drought tolerant lines. In addition, QTLs and molecular makers associated with drought tolerance traits will greatly facilitate the development of tolerant lines through marker-assisted selection (MAS). The objectives of this study were: 1) to evaluate whether selection of high-yielding lines under irrigation in the preliminary stage is a positive predictor of the performance of these lines under drought conditions, and 2) to identify/confirm QTLs associated with slow wilting and nitrogen fixation for drought tolerance. For the first objective, yield performances of 87 genotypes derived from three different populations were evaluated under rain-fed conditions versus standard irrigation. The second objective was to identify QTLs associated with slow wilting, shoot ureides and nitrogen concentrations in soybeans. For this objective, 148 lines from an F4-derived population (R07-7044 x R01-581) were screened with SNP markers and molecular analysis was conducted. Results for the first project showed four different types of yield performance on the lines. The high-yielding lines under full irrigation also had high yields under drought indicating that the selection of high-yielding lines in initial stages under irrigation is a good indicator of the profitable yielding lines under moderate drought conditions. In the second project, results showed two new QTLs for shoot nitrogen on chromosomes 6 and 11, and confirmed two shoot ureide QTLs on chromosomes 10 and 13. Four new QTLs for wilting were identified on chromosomes 11, 13, 14, and 18. These newly confirmed QTLs and molecular markers will be useful for marker-assisted selection for drought tolerance improvement in a soybean breeding program.
Book Synopsis Recurrent Selection for Increased Seed Yield in Soybean [Glycine Max (L.) Merr.] Using Genetic Male Sterility by : Epimaki Mennas Kimolo Koinange
Download or read book Recurrent Selection for Increased Seed Yield in Soybean [Glycine Max (L.) Merr.] Using Genetic Male Sterility written by Epimaki Mennas Kimolo Koinange and published by . This book was released on 1981 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (glycine Max) by : Sumandeep Kaur Bazzer
Download or read book Genetics of Physiological Traits Associated with Drought Tolerance in Soybean (glycine Max) written by Sumandeep Kaur Bazzer and published by . This book was released on 2020 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max L.) is one of the major row crops in the United States, and its production is often limited by drought stress. Physiological traits from exotic germplasm that confer drought tolerance may be useful in improving commercial soybean production. For example, carbon isotope ratio (?13C) is positively correlated with water use efficiency (WUE), and nitrogen isotope ratio (?15N) is negatively correlated with N2 fixation; canopy temperature (CT) is an indicator for genetic variation in transpiration and stomatal conductance. Therefore, the objectives of this research were to identify the genomic regions associated with: (1) ?13C and ?15N using a population of 196 F6-derived recombinant inbred lines (RIL) from PI 416997 × PI 567201D that was phenotyped in four environments, (2) CT and ?13C using a population of 168 F5-derived RILs from KS4895 × Jackson that was phenotyped in multiple environments and irrigation treatments. In the PI 416997 × PI 567201D population, ?13C and ?15N had a wide phenotypic range in all environments, and PI 416997 had higher ?13C and lower ?15N values than PI 567201D. ?13C had high heritability (90%) whereas the heritability of ?15N was relatively lower (35%), indicating that ?15N was more affected by the environment. QTL mapping identified eight loci on seven chromosomes associated with ?13C, and these loci explained between 2.5 to 30% of the phenotypic variation. There were 13 loci on 10 chromosomes associated with ?15N, explaining 1.7 to 14.4% of the phenotypic variation. There were strong interactions between QTLs and environments for ?15N. In the KS4895 × Jackson RIL population, Jackson had a cooler canopy than KS4895, and the heritability of CT had low heritability (31%) across environments. There were 11 loci present on eight chromosomes associated with CT that individually explained 4.6 to 12.3% of the phenotypic variation. The heritability of ?13C in KS4895 × Jackson RIL population heritability was 83% when estimated over environments and over irrigation treatments. A total of 24 QTLs associated with ?13C were identified and clustered in nine genomic loci on seven chromosomes. The identified QTLs for ?13C, ?15N, and CT were co-localized with genomic regions associated with drought tolerance-related traits from previous studies. These genomic regions may be important resources in soybean breeding programs to improve tolerance to drought. Further research is needed to fine map the identified QTLs and validate markers linked with these regions.
Book Synopsis Screening Soybean [Glycine Max (L.) Merril] Germplasm for Resistance to Adverse Storage Conditions by : M. M. Movillon
Download or read book Screening Soybean [Glycine Max (L.) Merril] Germplasm for Resistance to Adverse Storage Conditions written by M. M. Movillon and published by . This book was released on 1983 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Spectral Reflectance in Soybean Breeding by : Ethan J. Menke
Download or read book Using Spectral Reflectance in Soybean Breeding written by Ethan J. Menke and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudden Death Syndrome (SDS) in soybean, (Glycine max (L.) Merr.) caused by Fusarium virguliforme, is an increasing problem in commercial soybean production due to the yield loss associated with the disease. Screening for genetic resistance requires extensive visual evaluations. Canopy spectral reflectance may be an indirect tool for selection of SDS resistance as well as grain yield in large segregating populations. The objective of this study was to estimate SDS resistance and seed yield in large diverse soybean populations using canopy spectral reflectance. Spectral reflectance, disease index, maturity and yield were measured on two populations consisting of 160 nested association mapping recombinant inbred lines and checks; and 140 commercial cultivars with checks. Populations were grown in three environments in 2015 and 2016 with historic SDS disease pressure. Entry, environment, and entry by environment sources of variation were significant for disease index, yield, maturity and spectral reflectance. Changes in season average reflectance were correlated to disease index, yield and maturity. Estimation models of disease index, yield and maturity were created with season averages as well as individual day readings for both populations. Season average and individual day models accounted for 11% to 77% of the phenotypic variation in disease and 41% to 93% of yield variation when measurements were taken at the height of disease pressure. Models for disease index and yield models were able to predict significant portions of the phenotypic variation between entries at most environments. These results suggest that it may be possible to estimate resistance to SDS and grain yield in soybeans using spectral reflectance in breeding populations.
Book Synopsis Date Palm Biotechnology by : Shri Mohan Jain
Download or read book Date Palm Biotechnology written by Shri Mohan Jain and published by Springer Science & Business Media. This book was released on 2011-08-13 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important reference book is the first comprehensive resource worldwide that reflects research achievements in date palm biotechnology, documenting research events during the last four decades, current status, and future outlook. This book is essential for researchers, policy makers, and commercial entrepreneurs concerned with date palm. The book is invaluable for date palm biotechnology students and specialists. This monument is written by an international team of experienced researchers from both academia and industry. It consists of five sections covering all aspects of date palm biotechnology including A) Micropropagation, B) Somaclonal Variation, Mutation and Selection, C) Germplasm Biodiversity and Conservation, D) Genetics and Genetic Improvement, and E) Metabolites and Industrial Biotechnology. The book brings together the principles and practices of contemporary date palm biotechnology. Each chapter contains background knowledge related to the topic, followed by a comprehensive literature review of research methodology and results including the authors own experience including illustrative tables and photographs.
Book Synopsis Ethics of the Professions: Medicine, Business, Media, Law by : Ioanna Kucuradi
Download or read book Ethics of the Professions: Medicine, Business, Media, Law written by Ioanna Kucuradi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professional Ethics have become fashionable during the past two decades. This proliferation of various professional ethics bears witness to a need to introduce ethical concerns in the exercise of various professions. In order to answer this need, each profession attempts to develop its own code of "ethics". In this respect, questions such as the following arise: Are the various ethical problems faced during the exercise of a profession different in kind from those ethical problems faced in everyday life? Or, are they ethical problems of the same kind, requiring in addition knowledge of the specific area of human endeavour in order to tackle them? The book deals with these and similar questions and points to the need for a different approach to professional ethics.
Book Synopsis Protocols for Micropropagation of Woody Trees and Fruits by : S.Mohan Jain
Download or read book Protocols for Micropropagation of Woody Trees and Fruits written by S.Mohan Jain and published by Springer Science & Business Media. This book was released on 2007-09-18 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micropropagation has become a reliable and routine approach for large-scale rapid plant multiplication, which is based on plant cell, tissue and organ culture on well defined tissue culture media under aseptic conditions. A lot of research efforts are being made to develop and refine micropropagation methods and culture media for large-scale plant multiplication of several number of plant species. However, many forest and fruit tree species still remain recalcitrant to in vitro culture and require highly specific culture conditions for plant growth and development. The recent challenges on plant cell cycle regulation and the presented potential molecular mechanisms of recalcitrance are providing excellent background for understanding on totipotency and what is more development of micropropagation protocols. For large-scale in vitro plant production the important attributes are the quality, cost effectiveness, maintenance of genetic fidelity, and long-term storage. The need for appropriate in vitro plant regeneration methods for woody plants, including both forest and fruit trees, is still overwhelming in order to overcome problems facing micropropagation such as somaclonal variation, recalcitrant rooting, hyperhydricity, polyphenols, loss of material during hardening and quality of plant material. Moreover, micropropagation may be utilized, in basic research, in production of virus-free planting material, cryopreservation of endangered and elite woody species, applications in tree breeding and reforestation.
Book Synopsis The Date Palm Genome, Vol. 1 by : Jameel M. Al-Khayri
Download or read book The Date Palm Genome, Vol. 1 written by Jameel M. Al-Khayri and published by Springer. This book was released on 2022-07-16 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first volume of a comprehensive assemblage of contemporary knowledge relevant to genomics and other omics in date palm. Volume 1 consists of 11 chapters arranged in 3 parts grouped according to subject. Part I, Biology and Phylogeny, focuses on date palm biology, evolution and origin. Part II, Biodiversity and Molecular Identification, covers conformity of in vitro derived plants, molecular markers, barcoding, pollinizer genetics and gender determination. Part III, Genome Mapping and Bioinformatics, addresses genome mapping of nuclear, chloroplast and mitochondrial DNA, in addition to a chapter on progress made in date palm bioinformatics. This volume represents the efforts of 30 international scientists from 10 countries and contains 78 figures and 30 tables to illustrate presented concepts. Volume 2 is published under the title: Omics and Molecular Breeding.
Book Synopsis Biotechnology of Fruit and Nut Crops, 2nd Edition by : Richard E. Litz
Download or read book Biotechnology of Fruit and Nut Crops, 2nd Edition written by Richard E. Litz and published by CABI. This book was released on 2020-01-29 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the biotechnology of all the major fruit and nut species. Since the very successful first edition of this book in 2004, there has been rapid progress for many fruit and nut species in cell culture, genomics and genetic transformation, especially for citrus and papaya. This book covers both these cutting-edge technologies and regeneration pathways, protoplast culture, in vitro mutagenesis, ploidy manipulation techniques that have been applied to a wider range of species. Three crop species, Diospyros kaki (persimmon), Punica granatum (pomegranate) and Eriobotrya japonica (loquat) are included for the first time. The chapters are organized by plant family to make it easier to make comparisons and exploitation of work with related species. Each chapter discusses the plant family and the related wild species for 38 crop species, and has colour illustrations. It is essential for scientists and post graduate students who are engaged in the improvement of fruit, nut and plantation crops.
Book Synopsis Molecular Biology and Genetic Engineering by : P. K. Gupta
Download or read book Molecular Biology and Genetic Engineering written by P. K. Gupta and published by Rastogi Publications. This book was released on 2008 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: PART I Molecular Biology 1. Molecular Biology and Genetic Engineering Definition, History and Scope 2. Chemistry of the Cell: 1. Micromolecules (Sugars, Fatty Acids, Amino Acids, Nucleotides and Lipids) Sugars (Carbohydrates) 3. Chemistry of the Cell . 2. Macromolecules (Nucleic Acids; Proteins and Polysaccharides) Covalent and Weak Non-covalent Bonds 4. Chemistry of the Gene: Synthesis, Modification and Repair of DNA DNA Replication: General Features 5. Organisation of Genetic Material 1. Packaging of DNA as Nucleosomes in Eukaryotes Techniques Leading to Nucleosome Discovery 6. Organization of Genetic Material 2. Repetitive and Unique DNA Sequences 7. Organization of Genetic Material: 3. Split Genes, Overlapping Genes, Pseudogenes and Cryptic Genes Split Genes or .Interrupted Genes 8. Multigene Families in Eukaryotes 9. Organization of Mitochondrial and Chloroplast Genomes 10. The Genetic Code 11. Protein Synthesis Apparatus Ribosome, Transfer RNA and Aminoacyl-tRNA Synthetases Ribosome 12. Expression of Gene . Protein Synthesis 1. Transcription in Prokaryotes and Eukaryotes 13. Expression of Gene: Protein Synthesis: 2. RNA Processing (RNA Splicing, RNA Editing and Ribozymes) Polyadenylation of mRNA in Prokaryotes Addition of Cap (m7G) and Tail (Poly A) for mRNA in Eukaryotes 14. Expression of Gene: Protein Synthesis: 3. Synthesis and Transport of Proteins (Prokaryotes and Eukaryotes) Formation of Aminoacyl tRNA 15. Regulation of Gene Expression: 1. Operon Circuits in Bacteria and Other Prokaryotes 16. Regulation of Gene Expression . 2. Circuits for Lytic Cycle and Lysogeny in Bacteriophages 17. Regulation of Gene Expression 3. A Variety of Mechanisms in Eukaryotes (Including Cell Receptors and Cell Signalling) PART II Genetic Engineering 18. Recombinant DNA and Gene Cloning 1. Cloning and Expression Vectors 19. Recombinant DNA and Gene Cloning 2. Chimeric DNA, Molecular Probes and Gene Libraries 20. Polymerase Chain Reaction (PCR) and Gene Amplification 21. Isolation, Sequencing and Synthesis of Genes 22. Proteins: Separation, Purification and Identification 23. Immunotechnology 1. B-Cells, Antibodies, Interferons and Vaccines 24. Immunotechnology 2. T-Cell Receptors and MHC Restriction 25. Immunotechnology 3. Hybridoma and Monoclonal Antibodies (mAbs) Hybridoma Technology and the Production of Monoclonal Antibodies 26. Transfection Methods and Transgenic Animals 27. Animal and Human Genomics: Molecular Maps and Genome Sequences Molecular Markers 28. Biotechnology in Medicine: l.Vaccines, Diagnostics and Forensics Animal and Human Health Care 29. Biotechnology in Medicine 2. Gene Therapy Human Diseases Targeted for Gene Therapy Vectors and Other Delivery Systems for Gene Therapy 30. Biotechnology in Medicine: 3. Pharmacogenetics / Pharmacogenomics and Personalized Medicine Phannacogenetics and Personalized 31. Plant Cell and Tissue Culture' Production and Uses of Haploids 32. Gene Transfer Methods in Plants 33. Transgenic Plants . Genetically Modified (GM) Crops and Floricultural Plants 34. Plant Genomics: 35. Genetically Engineered Microbes (GEMs) and Microbial Genomics References
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