Evaluating and Characterizing Safflower (Carthamus Tinctorius L.) Germplasm PDF Download
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Author: Samer Ali Khalifeh
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
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Book Description
The objectives of this research were to study morphological characteristics of safflower accessions collected from different parts of the world, to determine the yield potential, and to describe the extent of biodiveristy of the collection. Germination, speed of germination and germination elasticity were tested under varying levels of moisture stress. Seed oil content was also determined. Molecular characterization, using RAPD analysis was performed on all accessions. In addition, a field experiment was done at AREC to assess growth, yield and other morphological characters under irrigated and non-irrigated conditions. Percentage germination and speed of germination were significantly affected by choice of accessions as well as osmotic stress. Germination elasticity, on the other hand, was not affected by osmotic potential, and most accessions showed poor recover)' following stress. A wide range of seed oil content, 37.75 to 62.30 % was observed. Many variables, such as plant height, time to harvest and seed yield were not affected by irrigation treatment, but differ between accessions. Cluster analysis resulted in different groupings depending on quantitative, qualitative or DNA results. Also, accessions were grouped differently when irrigated and non-irrigated variable results were compared. Diversity analysis therefore is highly affected by and changes according to prevalent conditions. It is therefore recommended that such analysis be performed under conditions resembling the target area of production.
Author: Samer Ali Khalifeh
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
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Book Description
The objectives of this research were to study morphological characteristics of safflower accessions collected from different parts of the world, to determine the yield potential, and to describe the extent of biodiveristy of the collection. Germination, speed of germination and germination elasticity were tested under varying levels of moisture stress. Seed oil content was also determined. Molecular characterization, using RAPD analysis was performed on all accessions. In addition, a field experiment was done at AREC to assess growth, yield and other morphological characters under irrigated and non-irrigated conditions. Percentage germination and speed of germination were significantly affected by choice of accessions as well as osmotic stress. Germination elasticity, on the other hand, was not affected by osmotic potential, and most accessions showed poor recover)' following stress. A wide range of seed oil content, 37.75 to 62.30 % was observed. Many variables, such as plant height, time to harvest and seed yield were not affected by irrigation treatment, but differ between accessions. Cluster analysis resulted in different groupings depending on quantitative, qualitative or DNA results. Also, accessions were grouped differently when irrigated and non-irrigated variable results were compared. Diversity analysis therefore is highly affected by and changes according to prevalent conditions. It is therefore recommended that such analysis be performed under conditions resembling the target area of production.
Author: Dajue Li
Publisher:
ISBN: 9787116013988
Category : Germplasm resources, Plant
Languages : en
Pages : 260
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Book Description
Author: Li Dajue
Publisher: Bioversity International
ISBN: 9290432977
Category : Safflower
Languages : en
Pages : 83
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Book Description
Author: Elfadl Yousif Elmogtaba Elfadl
Publisher: Cuvillier Verlag
ISBN: 373693274X
Category : Science
Languages : en
Pages : 192
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Book Description
An investigation was conducted to determine the extent of diversity and relationships among a worldwide safflower (Carthamus tinctorius L.) germplasm collection and to find out adapted accessions that can be used in an organic safflower breeding program in Germany. A total of 468 accessions were studied under organic farming conditions at Kleinhohenheim experimental station during the seasons of 2004 and 2005. All the accessions were evaluated for 12 phenotypic traits and three rated diseases. Multivariate analyses have been used to measure the diversity in a subset of 200 accessions and 11 geographical regions. Generally, the study showed that there was a large genetic variation within accessions. A coefficient of variation (CV %) for investigated traits and diseases ranged from 2.9 to 91.0% with the highest CV was recorded for yield/m², yield/plant and seeds/plant. The most accessions that originated in Europe revealed relatively better performance compared to non-Europeans. High yielding, early maturing, and disease tolerant accessions were identified. However, the low oil content (8.7-22.8%) is the primary concern in this germplasm collection. The degree of heritability varied between 10% for lodging to 86% for plant height. Genotypic coefficient of correlation (rg) was slightly higher for many traits than the respective phenotypic coefficient. Oil content and seed yield/m² were highly significantly correlated (rg=0.78). The genotypic coefficient of correlation showed that selection for seeds/plant and thousand kernel weight was effective for improvement of seed yield and oil content. The results of the principal component analysis and the clustering pattern of accessions were consistent with the results of analysis of variance. About 78% of the total phenotypic diversity in the germplasm was explained on the basis of four principal components and 88% of the total variation among geographical regions was contributed by the first three principal components. The distribution of the accessions within clusters has no apparent relationship with the geographical origin. However, many of the European accessions have a tendency to stay together.
Author: V. Sreenivasa
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Author: R. Diwakar
Publisher:
ISBN:
Category :
Languages : en
Pages : 97
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Book Description
Author: Andreas W. Ebert
Publisher: MDPI
ISBN: 3036508945
Category : Science
Languages : en
Pages : 672
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Book Description
The papers included in this Special Issue address a variety of important aspects of plant biodiversity and genetic resources, including definitions, descriptions, and illustrations of different components and their value for food and nutrition security, breeding, and environmental services. Furthermore, comprehensive information is provided regarding conservation approaches and techniques for plant genetic resources, policy aspects, and results of biological, genetic, morphological, economic, social, and breeding-related research activities. The complexity and vulnerability of (plant) biodiversity and its inherent genetic resources, as an integral part of the contextual ecosystem and the human web of life, are clearly demonstrated in this Special Issue, and for several encountered problems and constraints, possible approaches or solutions are presented to overcome these.
Author: Chittaranjan Kole
Publisher: CRC Press
ISBN: 1040103367
Category : Science
Languages : en
Pages : 315
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Book Description
This book deliberates on the concept, strategies, tools, and techniques of allele mining in oilseed crops and its application potential in genome elucidation and improvement, including studying allele evolution, discovery of superior alleles, discerning new haplotypes, assessment of intra- and interspecific similarity, and studies of gene expression and gene prediction. Available gene pools in global germplasm collections, specifically consisting of wild allied species and local landraces for almost all major crops, have facilitated allele mining. The development of advanced genomic techniques, including PCR-based allele priming and Eco-TILLING-based allele mining, is now widely used for mining superior alleles. Allele's discovery has become more relevant now for employing molecular breeding to develop designed crop varieties matching consumer needs and with genome plasticity to adapt to climate change scenarios. All these concepts and strategies, along with precise success stories, are presented in the chapters dedicated to the major oilseed crops. 1. This is the first book on the novel strategy of allele mining in oilseed crops for precise breeding. 2. This book presents genomic strategies for mining superior alleles underlying agronomic traits from genomic resources. 3. This book depicts case studies of PCR-based allele priming and Eco-TILLING based allele mining. 4. This book elaborates on gene discovery and gene prediction in major oilseed crops. This book will be useful to students and faculties in various plant science disciplines, including genetics, genomics, molecular breeding, agronomy, and bioinformatics; scientists in seed industries; and policymakers and funding agencies interested in crop improvement.
Author: Huseyin Tombuloglu
Publisher: Springer Nature
ISBN: 3030704203
Category : Science
Languages : en
Pages : 444
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Book Description
Plants are an important source of fats and oils, which are essential for the human diet. In recent years, genomics of oil biosynthesis in plants have attracted great interest, especially in high oil-bearing plants, such as sesame, olive, sunflower, and palm. Considering that, genome sequencing projects of these plants have been undertaken with the help of advanced genomics tools such as next generation sequencing. Several genome sequencing projects of oil crops are in progress and many others are en route. In addition to genome information, advanced genomics approaches are discussed such as transcriptomics, genomics-assisted breeding, genome-wide association study (GWAS), genotyping by sequencing (GBS), and CRISPR. These have all improved our understanding of the oil biosynthesis mechanism and breeding strategies for oil production. There is, however, no book that covers the genomes and genomics of oil crops. For this reason, in this volume we collected the most recent knowledge of oil crop genomics for researchers who study oil crop genomes, genomics, biotechnology, pharmacology, and medicine. This book covers all genome-sequenced oil crops as well as the plants producing important oil metabolites. Throughout this book, the latest genomics developments and discoveries are highlighted as well as open problems and future challenges in oil crop genomics. In doing so, we have covered the state-of-the-art of developments and trends of oil crop genomics.
Author: Jameel M. Al-Khayri
Publisher: Springer Nature
ISBN: 3030232654
Category : Technology & Engineering
Languages : en
Pages : 744
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Book Description
This book examines the development of innovative modern methodologies towards augmenting conventional plant breeding, in individual crops, for the production of new crop varieties under the increasingly limiting environmental and cultivation factors to achieve sustainable agricultural production, enhanced food security, in addition to providing raw materials for innovative industrial products and pharmaceuticals. This is Vol 6, subtitled Industrial and Food Crops, which consists of two parts. Included in Part I are 11 industrial plant species utilized as sources of raw materials for the production of industrial products including pulp and wood crops (acacia), fiber (cotton, jute and ramie), rubber (guayule and rubber tree), oil (jojoba and flax), biofuels and pharmaceutical (agave) and sugar source (sugarcane). Part II covers 7 food plants selected for their utilization in food industries for the production of chocolate (cacao), cooking oil (oil palm, safflower, sesame and sunflower) and natural flavors and aroma (saffron and vanilla). This volume is contributed by 60 internationally reputable scientists from 14 countries. Each chapter comprehensively reviews the modern literature on the subject and reflects the authors own experience.
