Genetic Dissection Of Cold Tolerance In Sorghum Sorghum Bicolor L Moench
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A Study of the Inheritance of Flowering Stage Cold Tolerance in Sorghum Bicolor (L.) Moench
Author | : Enrique Romo Calderon |
Publisher | : |
Total Pages | : 310 |
Release | : 1989 |
Genre | : Plants |
ISBN | : |
Analysis of Cold Tolerance in Sorghum (Sorghum Bicolor (L.) Moench)
Author | : Frank Maulana |
Publisher | : |
Total Pages | : |
Release | : 2011 |
Genre | : |
ISBN | : |
Cold temperature stress is an important abiotic constraint to grain sorghum production in temperate regions. In the United States, low temperature in late spring and early fall has limited sorghum production to a narrow growing period. Deployment of cold tolerance traits may widen this window and hence contribute to increased production. The objectives of this study were (1) to determine the effect of early and mid-season cold temperature stress on growth, phenology and yield components of sorghum, and identify key traits that are most sensitive to cold stress at seedling and flowering stages, and (2) to identify new sources of cold tolerance for use in breeding programs. Series of controlled environment (greenhouse/growth chamber) and field experiments were carried out. Three sorghum genotypes of variable response, Shan Qui Red (tolerant), SRN39 (susceptible) and Pioneer 84G62 (unknown) were subjected to cold (15/13°C day/night) and normal (25/23°C day/night) temperature at seedling (Experiment I) and flowering (Experiment II) stages. The genotypes were planted in a greenhouse using a 5L polytainer pots. Each pot consisted of a single plant and each plot was represented by three pots. A split-plot design with three replications was used in both experiments with temperature regimes as main plots and genotypes as sub-plots. Three days after emergence, experiment I plants were moved to the growth chamber and subjected to the designated temperature treatments. For experiment II, the treatments were assigned at heading stage immediately before anthesis had begun. The treatments lasted 10 d in both experiments. Data were collected on seedling characteristics and leaf chlorophyll content in experiment I, days to flowering, maturity, and yield components in both experiments, and anthesis duration in experiment II. For the field experiment, 150 sorghum germplasm collections of potential cold tolerance along with tolerant and susceptible checks were evaluated for emergence and seedling traits under early planting (April 13) at soil temperature of 20.1/13.4 °C max/min. The normal temperature treatment was applied by planting at regular season (May 26) at soil temperature of 30.0/20.4°C max/min. Twenty-four genotypes selected based on field emergence and seedling vigor were further screened under controlled environment. Early-season stress significantly reduced leaf chlorophyll content, all seedling traits (height, vigor and dry weight), and also delayed flowering and maturity. But it had no effect on final leaf number, plant height and yield components. Genotypic response to early stress was significant for all traits with the susceptible checks having the lowest score for all seedling traits. Mid-season cold stress prolonged anthesis duration, delayed maturity and highly reduced all yield components. Several genotypes among the 150 had higher seedling vigor and emergence than the tolerant check, Shan Qui Red. In conclusion, reduced seedling vigor as a result of early stress had no effect on final yield provided that stand establishment was not compromised while mid season stress is damaging to yield. The wide genetic variation for the traits indicates the potential for improvement of cold tolerance in sorghum.
Genetics, Genomics and Breeding of Sorghum
Author | : Yi-Hong Wang |
Publisher | : CRC Press |
Total Pages | : 368 |
Release | : 2014-07-08 |
Genre | : Science |
ISBN | : 1482210088 |
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 chapter is authored by specialists in their fields to report the latest trends and findings. The book showcases the definitive value of sorghum as a model system to study the genetic basis of crop productivity and stress tolerance and will provide a foundation for future studies in sorghum genetics, genomics, and breeding.
The Sorghum Genome
Author | : Sujay Rakshit |
Publisher | : Springer |
Total Pages | : 289 |
Release | : 2017-01-18 |
Genre | : Science |
ISBN | : 3319477897 |
This book provides insights into the current state of sorghum genomics. It particularly focuses on the tools and strategies employed in genome sequencing and analysis, public and private genomic resources and how all this information is leading to direct outcomes for plant breeders. The advent of affordable whole genome sequencing in combination with existing cereal functional genomics data has enabled the leveraging of the significant novel diversity available in sorghum, the genome of which was fully sequenced in 2009, providing an unmatched resource for the genetic improvement of sorghum and other grass species. Cultivated grain sorghum is a food and feed cereal crop adapted to hot and dry climates, and is a staple for 500 million of the world’s poorest people. Globally, sorghum is also an important source of animal feed and forage, an emerging biofuel crop and model for C4 grasses, particularly genetically complex sugarcane.
Breeding Sorghum for Diverse End Uses
Author | : Aruna C |
Publisher | : Woodhead Publishing |
Total Pages | : 452 |
Release | : 2018-08-22 |
Genre | : Technology & Engineering |
ISBN | : 0081018800 |
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
Advances in Sorghum Research and Application: 2012 Edition
Author | : |
Publisher | : ScholarlyEditions |
Total Pages | : 20 |
Release | : 2012-12-26 |
Genre | : Science |
ISBN | : 1481638475 |
Advances in Sorghum Research and Application / 2012 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Sorghum in a compact format. The editors have built Advances in Sorghum Research and Application / 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Sorghum in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Advances in Sorghum Research and Application / 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Cold Tolerance of Sorghum [Sorghum Bicolor (L.) Moench] During Germination and Early Seedling Growth
Author | : Anne Alegre de la Soujeole |
Publisher | : |
Total Pages | : 218 |
Release | : 1985 |
Genre | : Sorghum |
ISBN | : |
Molecular Breeding in Wheat, Maize and Sorghum
Author | : Mohammad Anwar Hossain |
Publisher | : CABI |
Total Pages | : 552 |
Release | : 2021-06-30 |
Genre | : Technology & Engineering |
ISBN | : 1789245435 |
The global population is projected to reach almost 10 billion by 2050, and food and feed production will need to increase by 70%. Wheat, maize and sorghum are three key cereals which provide nutrition for the majority of the world's population. Their production is affected by various abiotic stresses which cause significant yield losses. The effects of climate change also increase the frequency and severity of such abiotic stresses. Molecular breeding technologies offer real hope for improving crop yields. Although significant progress has been made over the last few years, there is still a need to bridge the large gap between yields in the most favorable and most stressful conditions.
Genetic Enhancement of Rabi Sorghum
Author | : Sanjana Reddy |
Publisher | : Academic Press |
Total Pages | : 249 |
Release | : 2015-05-28 |
Genre | : Technology & Engineering |
ISBN | : 0128019395 |
Genetic Enhancement of Rabi Sorghum – Adapting the Indian Durras presents both the historical background and the recent research done in breeding this important world crop for more global production. Its chapters cover topics in origin and taxonomy, morphology and breeding behavior, genetics, and cytogenetics, also looking at production, nutrition, and alternate uses. The durra race is Ethiopian in origin and its introgression with wild forms permitted adaptation to drier conditions. These have migrated and adapted to the currently known crop that is cultivated in the winter season and commonly called rabi sorghums. Grown under receding soil moisture conditions, rabi sorghums have tolerance to abiotic stresses apart from biotic stresses, unlike the rainy sorghums that are grown widely in the world. However, they must be more resilient to rapid changes in climate, for example. The variability from winter sorghums is being introgressed into rainy sorghums. With the yield plateaus reached and sorghum gaining importance as a food crop, this book will be of importance to those studying durras and their breeding. - Presents both the historical background and most recent research done in breeding rabi sorghum for more global production - Provides information on the adaptation of the crop and the ways it has migrated to the currently known crop, which is cultivated in winter season and commonly called as rabi sorghum - Explores strategies for resilience as the crop must be prepared to withstand rapid and varying changes in climate