Download or read book An Assessment of Genotypic and Phenotypic Diversity for Production Potential Within a Collection of Sorghum Bicolor written by Molly Jane Parkhurst and published by . This book was released on 2013 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum, Sorghum bicolor (L.) Moench, is a globally important cereal crop that has now been widely recognized for its versatile potential as a food, a feedstock and an alternative fuel source. The fuel is obtained through the enzymatic degradation and subsequent fermentation of cellulose and hemicellulose extracted from the plant biomass or direct fermentation of the starches available in the grain. For maximum potential in biomass and grain production, the genetic diversity represented in available germplasm collections must be assessed for traits of importance to biofuel production and incorporated into future breeding programs. As a first step, this study focuses on genotypic diversity in a collection of 43 accessions of S. bicolor assessed with AFLP markers in conjunction with measurement of biomass production, height and grain yield. The results obtained from this study suggest significant differences in phenotypic diversity among the accessions collected from different parts of the world. Ample diversity was also found in the genotypes of the accessions included, though not much genetic structure was implied. Through the analysis of genetic diversity and phenotypic variability, we have identified germplasm accessions that deserve further mapping studies. The identification of these accessions provides sorghum breeders new genetic stocks that can increase the yield potential of sorghum varieties while expanding the genetic base of commercial sorghum production.

Download or read book Sorghum in the 21st Century Food Fodder Feed Fuel for a Rapidly Changing World written by Vilas A. Tonapi and published by Springer Nature. This book was released on 2021-01-04 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is the most important cereal crop grown in the semi-arid tropics (SAT) of Africa, Asia, Australia and Americas for food, feed, fodder and fuel. It is the fifth most important cereal crop globally after rice, wheat, maize and barley, and plays a major role in global food security. Sorghum is consumed in different forms for various end-uses. Its grain is mostly used directly for food purposes. After the release of the proceedings of two international symposia in the form of books “Sorghum in Seventies” and “Sorghum in Eighties”, global sorghum research and development have not been documented at one place. Of course, few books on sorghum have been released that focus on specific issues/research areas, but comprehensive review of all aspects of recent development in different areas of sorghum science has not been compiled in the form a single book. This book is intended to fill in a void to bridge the gap by documenting all aspects of recent research and development in sorghum encompassing all the progress made, milestones achieved across globe in genetic diversity assessment, crop improvement and production, strategies for high yield, biotic and abiotic stress resistance, grain and stover quality aspects, storage, nutrition, health and industrial applications, biotechnological applications to increase production, including regional and global policy perspectives and developmental needs. This book will be an institutional effort to compile all the latest information generated in research and development in sorghum across the globe at one place.

Download or read book Genetics Genomics and Breeding of Sorghum written by Yi-Hong Wang and published by CRC Press. This book was released on 2014-07-08 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is one of the hardiest crop plants in modern agriculture and also one of the most versatile. Its seeds provide calorie for food and feed, stalks for building and industrial materials and its juice for syrup. This book provides an in-depth review of the cutting-edge knowledge in sorghum genetics and its applications in sorghum breeding. Each

Download or read book MSH1 mediated Non genetic Phenotypic Variation in Plants written by Dikungwa Ketumile and published by . This book was released on 2017 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is the fifth most important cereal crop grown in the world, and is the primary staple food for many people in developing countries. Like other major crops, its improvement is constrained by depletion of genetic diversity within breeding germplasm. Investigated in this study is the unique creation of non-genetic phenotypic variation through altering MutS Homolog1 (MSH1), a plant-specific gene, and the potential it presents for sorghum improvement. Suppression of MSH1 results in non-genetic developmental reprogramming. The derived MSH1 memory lines, when used in crossing, result in heritable phenotypic variation that enhances plant vigor and agronomic performance. A previous study of MSH1-suppression effects in TX430 sorghum inbred revealed dramatic phenotypic variation. However, a proportion of the phenotypic effect was found to be genetic, resulting from spontaneous reversion of dwarfing gene dw3 to produce plant height variability. In this study, the possibility that MSH1 suppression influenced dw3 reversion was investigated; however, no evidence of increased dw3 reversion was found. F2 progeny derived from F1 parents pre-screened for dw3 reversion showed enhanced phenotypic variation in plant height, days to flowering, tillering and grain yield relative to the wildtype. A large proportion of the F2 families showed tendency to be taller and delayed in flowering, while about 10% of families outperformed the wildtype in tillering and grain yield. The observed MSH1 induced range of phenotypic variation in agronomic traits presents an opportunity for selection and potential for breeding in crops.

Download or read book Breeding Sorghum for Diverse End Uses written by Aruna C and published by Woodhead Publishing. This book was released on 2018-08-22 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breeding Sorghum for Diverse End Uses is a comprehensive overview of all significant global efforts for the genetic improvement of sorghum, a major crop of many semi-arid nations that is suitable for a huge range of uses, from human food, to biofuels. Split into two main sections, the book initially reviews the genetic suitability of sorghum for breeding, also providing the history of the genetic improvement of the grain. Finally, other sections look at specific breeding programs that could be improved in a number of areas, including human food, animal feed and industrial usage. Readers in academics, research, plant genetics and sorghum development will find this resource of great value. In addition, it is essential reading for engineers who utilize sorghum for food, feed and industrial materials in industry. Provides information on key advances in the genetic makeup of sorghum Allows plant breeders to apply this research to effectively breed new strains of sorghum that are dependent on final usage goals Includes the latest findings in each section to orient researchers to plans for future genetic enhancement

Download or read book Genotypic Variation in Dry Matter Production in Grain Sorghum Sorghum Bicolor L Moench written by Christopher Searle and published by . This book was released on 1983 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Sorghum Science written by Ratikanta Maiti and published by CRC Press. This book was released on 2021-07-16 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume, Advances in Sorghum Science: Botany, Production, and Crop Improvement, provides an easy-to-read and comprehensive treatment of the sorghum crop. With the world’s production of sorghum topping over 55 million tons annually, sorghum is very important for as a staple dietary food for much of the world as a rich source of micronutrients and macronutrients, as an ingredient in the processing of many foods, and as a source of fodder. The authors of the volume provide detailed information on sorghum from several disciplines and bring together recent literature under one umbrella. The book covers the various aspects of the sorghum crop, starting from its origin, to its domestication, and going on to biotechnology of the crop. It describes sorghum production, ideotypes, botany, physiology, abiotic and biotic factors affecting crop productivity, methods of cultivation, postharvest management, grain quality analysis for food processing, improvement of sorghum crop, and research advancements in breeding and biotechnology. This valuable resource will be helpful to researchers and scientists working to understand the relation between various disciplines and the implementation of new methods and technology for crop improvement and higher productivity. The multi-pronged approach will help to enable the increase sorghum productivity to meet the world’s growing demands.

Download or read book Food Crops Evolution Diversity and Advances written by D.A. Patil and published by Scientific Publishers. This book was released on 2019-01-10 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The treatise presents a wide range of information on different facets of world food crops. It justifies the present state of knowledge with reference to crop history, initial and latest developments with evolutionary approach based on karyotaxonomic and geographical evidence. The author has endeavored to dilate attempts for crop domestication and cultivation by worldwide human societies. These are supported by various considerations like ethnology, philology, ancient and religious treatises, archaeological evidence, works of pioneers, various human affairs, etc. He further based his writing on botanical conclusions accrued from distribution, number of varieties, occurrence of wild types, agro-botanical characteristics, time and place of origin, and worldwide usage of each crop species. The treatise is a highly-acclaimed source of information of crop plants useful to degree and post-graduate students of botany, agriculture and food science as a main text and reference work for researchers. It is recommendable for use in any country especially in the English speaking world. It will also appeal to the general reader, being rich in contents. In a nutshell, this treatise is a history of development of food crops. And therefore, a humble attempt has been made, first, to ascertain what was actually done or said, and second, to emphasize the causes of success or failure. Truly, it is the study of causes that makes history more fruitful and a basis for evaluating the future events with confidence.

Download or read book Evaluation of Sorghum Genotypes for Variation in Canopy Temperature and Drought Tolerance written by Raymond Ngao Mutava and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum (Sorghum bicolor L. Moench) is the fifth most economically important cereal crop grown worldwide and adapted to a wide range of climatic conditions. Drought stress has been ranked as one of the most significant causes of crop yield loss with its effects on yield and yield components. Conservative water use by plants is one of the strategies that can be used as a drought coping mechanism. The slow wilting trait has been associated with conservative water use and has been found in some sorghum genotypes. The purpose of this study was to use canopy temperature to screen for drought tolerance in sorghum, evaluate water use efficiency for slow wilting sorghum genotypes and determine variability in root morphology and response to drought among sorghum genotypes. Canopy temperature studies were conducted under field conditions using infrared (IR) sensors while water use efficiency and root studies were conducted under greenhouse conditions. Our results showed a distinct separation in canopy temperature among genotypes under field conditions at 2:00 pm to 6:00 pm. Midday canopy temperature depression (CTD) was positively correlated to yield (R2 = 0.19) and harvest index (R2 = 0.11). CTD was also stable for all the genotypes during the period from 1:00 pm to 7:00 pm. There was a negative correlation between CTD and crop water stress index (CWSI) (R2 = 0.34) and a positive one between canopy temperature and CWSI (R2 = 0.50). Evaluation of genotypes for water use efficiency revealed significant variability among sorghum genotypes in the amount of water used (10.48 - 13.52 kg) and transpiration efficiency (TE) (2.64 - 7.11 g kg−1) among genotypes. Slow wilting genotypes were high in TE. Rooting depth increased for some genotypes under drought stress with genotype SC1124 recording the largest increase (180%). Total root length for some genotypes increased by 11 - 113% with genotypes SC224 and SC1019 recording the greatest increase. There was a positive correlation between water used and root length (R2 = 0.21). These results show that there is potential for selection of drought tolerance in sorghum and that genotypes with the slow wilting traits are efficient in water use.

Download or read book Genetic Analysis of Stem Composition Variation in Sorghum Bicolor written by Joseph Evans and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum (Sorghum bicolor [L.] Moench) is the world's fifth most economically important cereal crop, grown worldwide as a source of food for both humans and livestock. Sorghum is a C4 grass that is well adapted to hot and arid climes and is popular for cultivation on lands of marginal quality. Recent interest in development of biofuels from lignocellulosic biomass has drawn attention to sorghum, which can be cultivated in areas not suitable for more traditional crops, and is capable of generating plant biomass in excess of 40 tons per acre. While the quantity of biomass and low water consumption make sorghum a viable candidate for biofuels growth, the biomass composition is enriched in lignin, which is problematic for enzymatic and chemical conversion techniques. The genetic basis for stem composition was analyzed in sorghum populations using a combination of genetic, genomic, and bioinformatics techniques. Utilizing acetyl bromide extraction, the variation in stem lignin content was quantified across several sorghum cultivars, confirming that lignin content varied considerably among sorghum cultivars. Previous work identifying sorghum reduced-lignin lines has involved the monolignol biosynthetic pathway; all steps in the pathway were putatively identified in the sorghum genome using sequence analysis. A bioinformatics toolkit was constructed to allow for the development of genetic markers in sorghum populations, and a database and web portal were generated to allow users to access previously developed genetic markers. Recombinant inbred lines were analyzed for stem composition using near infrared reflectance spectroscopy (NIR) and genetic maps constructed using restriction site-linked polymorphisms, revealing 34 quantitative trail loci (QTL) for stem composition variation in a BTx642 x RTx7000 population, and six QTL for stem composition variation in an SC56 x RTx7000 population. Sequencing the genome of BTx642 and RTx7000 to a depth of ~11x using Illumina sequencing revealed approximately 1.4 million single nucleotide polymorphisms (SNPs) and 1 million SNPs, respectively. These polymorphisms can be used to identify putative amino acid changes in genes within these genotypes, and can also be used for fine mapping. Plotting the density of these SNPs revealed patterns of genetic inheritance from shared ancestral lines both between the newly sequenced genotypes and relative to the reference genotype BTx623.

Download or read book Genetic Analysis of the Sorghum Bicolor Stay green Drought Tolerance Trait written by Karen Ruth Harris and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum (Sorghum bicolor [L.] Moench) is the fifth most economically important cereal grown worldwide and is a source of food, feed, fiber and fuel. Sorghum, a C4 grass and a close relative to sugarcane, is adapted to hot, dry adverse environments. Some genotypes of sorghum called stay-green have delayed leaf senescence during grain ripening under drought stress conditions which allows normal grain filling whereas most sorghum lines senesce early under post-anthesis drought. Eight sources of stay-green have been identified in the sorghum germplasm collection, most originating from Sudan and Ethiopia. The diversity of the eight sources of staygreen was analyzed using 55 simple sequence repeats (SSR) markers with genome coverage. This analysis showed that the sources of stay-green are quite diverse and can be divided into five groups based on race or working group. Three sources of stay-green have been used to identify 12 major quantitative trait loci (QTL) that modulate this trait. The origin of favorable alleles for stay-green was traced backward to ancestral lines and forward into breeding materials derived from stay-green germplasm. The analysis of the origin of favorable alleles for stay-green helped explain why subsets of stay-green QTL were identified in different studies and provided evidence that there may be more than one favorable allele in the sorghum germplasm for several of the stay-green QTL. Analysis of stay-green breeding lines from three public sorghum-breeding programs revealed that one of the main QTL identified in mapping studies was not being used in the breeding programs (0/13), most likely due to its association with an allele for lemon yellow seeds. In addition, a subset of the regions containing favorable alleles for staygreen from the genotype BTx642 were over represented in stay-green breeding lines. Nearly isogenic lines containing favorable alleles from BTx642 for Stg1, Stg2, Stg3, and Stg4 in a RTx7000 (senescent) background were characterized and each NIL was shown to exhibit a stay-green phenotype. Based in part on this information, fine-mapping of Stg1 was undertaken by crossing the Stg1 NIL to RTx7000. Overall, these results revealed the origin of favorable alleles for stay-green and the current utilization of alleles for stay-green in public breeding programs. In addition, this study identified additional stay-green sources that could be used for further QTL analysis and highlighted the genetic complexity of the stay-green trait.

Download or read book Molecular Dissection of Complex Traits written by Andrew H. Paterson and published by CRC Press. This book was released on 2019-09-17 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past 10 years, contemporary geneticists using new molecular tools have been able to resolve complex traits into individual genetic components and describe each such component in detail. Molecular Dissection of Complex Traits summarizes the state of the art in molecular analysis of complex traits (QTL mapping), placing new developments in thi

Download or read book Harnessing Genebanks High Throughput Phenotyping and Genotyping of Crop Wild Relatives and Landraces written by Andrés J. Cortés and published by Frontiers Media SA. This book was released on 2023-04-06 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Millets and Sorghum written by Jagannath V. Patil and published by John Wiley & Sons. This book was released on 2017-03-06 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millets and sorghum are extremely important crops in many developing nations and because of the ability of many of them to thrive in low-moisture situations they represent some exciting opportunities for further development to address the continuing and increasing impact of global temperature increase on the sustainability of the world’s food crops. The main focus of this thorough new book is the potential for crop improvement through new and traditional methods, with the book’s main chapters covering the following crops: sorghum, pearl millet, finger millet, foxtail milet, proso millet, little millet, barnyard millet, kodo millet, tef and fonio. Further chapters cover pests and diseases, nutritional and industrial importance, novel tools for improvement, and seed systems in millets. Millets and Sorghum provides full and comprehensive coverage of these crucially important crops, their biology, world status and potential for improvement, and is an essential purchase for crop and plant scientists, and food scientists and technologists throughout the developed and developing world. All libraries in universities and research establishment where biological and agricultural sciences are studied and taught should have copies of this important book on their shelves.

Download or read book A Study in Sorghum Bicolor written by Matthew Scott Bartek and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently designated as a bioenergy crop, Sorghum is rather unique as it can produce large quantities of cellulose or sugar which can be used to produce advanced biofuels or compounds. Sweet sorghum contains high levels of sugars and biomass sorghums consist primarily of ligno-cellulosic biomass. Improvement of both sorghum types is essential for maximizing production and conversion efficiency. Photoperiod sensitive sorghum is thought to maximize biomass production yet maturity influence on biomass production and composition is not fully understood. Utilizing sorghum for sugar production has increased efforts to develop sweet sorghums with sugar yields similar to sugarcane. Hybridization of these species has been investigated with, until recently, little success. Testing newly developed intergeneric hybrids and improvement of parents used in their creation will determine their feasibility and improve hybrid performance. Objectives of this research are multifaceted. First, analyze photoperiod sensitive sorghum in varying day length environments to determine maturity effects on plant phenotype, composition, and QTL detection. Second, analyze intergeneric sorghum x sugarcane hybrids to determine agronomic performance in relation to sugarcane. Lastly, introgress the iap allele into sweet sorghum females for use in intergeneric hybrid creation. Photoperiod sensitive sorghum RILs were evaluated in College Station and Weslaco, Texas and Puerto Rico which caused differential expression of plant maturity. Genetic control of trait expression was high for each location. Results indicate gradual induction of plant maturity increases detection of phenotypic QTL and detection of compositional QTL increases when maturity effects on plant phenotype are reduced. Intergeneric sorghum x sugarcane F1 hybrids were compared to sugarcane in Weslaco, Texas in 2011. Each hybrid expressed agronomic traits similar or better than that of the sugarcane variety. High levels of repeatability and genetic influence on trait expression were observed. Overall performance of the sugarcane variety was better than any individual hybrid tested. Introgression of iap into sweet sorghum was successful and generated seventeen new sweet sorghum female genotypes possessing the allele. Only two genotypes exhibited higher brix readings and both were later maturing than Tx3361. Height and maturity of all developed genotypes varied and desirability of developed lines was similar to Tx3361. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151262

Download or read book Genetic Diversity of Kenyan Sorghum Germ Plasm written by Kahiu Ngugi and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum bicolor (L) Moench is the fifth most important cereal crop globally and in Africa, it is the second most important after Maize. In Kenya, Sorghum is an important food security crop mainly cultivated in semi-arid agro-ecological zones on area of about 150,000 ha where annual rainfall is about 250mm . The major constraint to low yields is due to prolonged drought stress and frequent drought occurrence. In order to alleviate the low yields in the face of continuing climate change, there is need to identify germ-plasm that possesses drought tolerance genes/alleles and that can be harnessed to improve sorghum adaptation to drought stress. This study assessed the phenotypic and genotypic performance of sorghum local land-races grown in Kenya and characterized their genetic diversity under drought stress conditions. The results reported here showed that Kenyan sorghum germ-plasm is highly polymorphic and genetically diverse.The land-races can be categorized as having been selected for earliness or drought escape, drought tolerance as represented by the many newly identified stay-green genotypes and has also been selected for high yielding but drought susceptible alleles.

Download or read book Morpho agronomical and Molecular Marker Based Genetic Diversity Analyses and Quality Evaluation of Sorghum Sorghum Bicolor L Moench Genotypes written by Nemera Geleta Shargie and published by . This book was released on 2003 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: