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Evaluation Of Single Backcross And Three Way Crosses To Introduce Non Adapted Germplasm Into Adapted Spring Wheat
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Book Synopsis Evaluation of Single, Backcross and Three Way Crosses to Introduce Non-adapted Germplasm Into Adapted Spring Wheat by : Jorge Enrique Autrique
Download or read book Evaluation of Single, Backcross and Three Way Crosses to Introduce Non-adapted Germplasm Into Adapted Spring Wheat written by Jorge Enrique Autrique and published by . This book was released on 1989 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A checklist of academic theses produced with support from CIMMYT 1966-2000 by : John E. Woolston
Download or read book A checklist of academic theses produced with support from CIMMYT 1966-2000 written by John E. Woolston and published by CIMMYT. This book was released on 2000 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy Abstracts written by and published by . This book was released on 1993 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).
Book Synopsis Plant Breeding Reviews by : Jules Janick
Download or read book Plant Breeding Reviews written by Jules Janick and published by John Wiley & Sons. This book was released on 2011-01-11 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Backcross Introgression and Two-stage Testing for Conversion of Improved Tropical Germplasm to Temperate Environments by : Freeman Callaway Whitehead
Download or read book Backcross Introgression and Two-stage Testing for Conversion of Improved Tropical Germplasm to Temperate Environments written by Freeman Callaway Whitehead and published by . This book was released on 2002 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of exotic maize (Zea mays L.) germplasm, particularly of tropical and subtropical adaptation, has been suggested to increase genetic variability and grain yield of maize breeding material in temperate environments. Lack of adaptation to temperate areas and photoperiod sensitivity may mask desirable traits and reduce breeding progress. The objectives of this study included two-stage evaluation and selection of segregating families in the central U.S. Corn Belt derived from the backcross introgression of previously improved tropical CIMMYT germplasm into adapted, elite U.S. Corn Belt germplasm. The U.S. Corn Belt heterotic patterns of Stiff Stalk and non-Stiff Stalk were combined with germplasm of primarily Tuxpeno and non-Tuxpeño racial origin, respectively. Per se evaluation of 891 backcross (BClF1) families from 33 different backcrosses, component Fl crosses, and adapted recurrent populations were conducted in Iowa in 1997. Backcross populations displayed grain yields either similar to or greater than the respective Fl crosses but with significantly less grain moisture and days to mid-pollen, suggesting 25% tropical germplasm to be the preferred starting point to initiate selection. Stalk lodging of backcross populations was similar to and sometimes less than the respective adapted recurrent population check while yield was greater in more than 50% of the crosses. BC1F1 families were selected from within Stiff Stalk and non-Stiff Stalk oriented materials and testcrossed to an elite inbred of the opposite heterotic pool. Testcrosses of backcross families and testcrosses of adapted parental populations were evaluated at seven locations in Iowa and Nebraska in 1999. Grain yield, percent root and stalk lodging, and plant and ear heights of selected testcrosses were generally similar (p[Less than or equal to symbol]0.05) to their respective checks. Harvest grain moisture and days to mid-silk and mid-pollen were either similar to or greater than the checks, averaging early zone 8 for maturity. Results support backcrossing to introduce previously improved tropical germplasm to the central U.S. Corn Belt. The alignment of established U.S. Corn Belt heterotic pools with tropical racial or heterotic pools during introgression will serve to enhance genetic variation within and among pools. Previously selected tropical germplasm of known heterotic affinity may be considered a significant resource for introduction of tropical germplasm into temperate breeding programs.
Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Plenum Publishing Corporation. This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Book Synopsis Early Generation Bulk Testing to Evaluate the Introgression of Unadapted Wheat (Triticum Aestivum L.) Germplasm Into Adapted Spring Wheat by : Ana Maria Procopiuk
Download or read book Early Generation Bulk Testing to Evaluate the Introgression of Unadapted Wheat (Triticum Aestivum L.) Germplasm Into Adapted Spring Wheat written by Ana Maria Procopiuk and published by . This book was released on 1999 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis South Dakota Farm & Home Research by :
Download or read book South Dakota Farm & Home Research written by and published by . This book was released on 1991 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crosses of Spring by Winter Wheats by : Daniel Jeffrey Brotslaw
Download or read book Crosses of Spring by Winter Wheats written by Daniel Jeffrey Brotslaw and published by . This book was released on 1988 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Four Quality Factors in a Selected Winter X Spring Wheat Cross (Triticum Aestivum Vill., Host) by : Karen Sue Schumaker
Download or read book Evaluation of Four Quality Factors in a Selected Winter X Spring Wheat Cross (Triticum Aestivum Vill., Host) written by Karen Sue Schumaker and published by . This book was released on 1979 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature of the genetic variation associated with a cross involving winter and spring wheat parents for four quality factors was evaluated. Yamhill, a soft white winter wheat, and Inia 66, a hard red spring wheat, were selected as parents for this study. They represented distinctly different phenotypes for the attributes measured. Parents, F1, F2 and reciprocal backcrosses were examined for protein and lysine content, kernel hardness, and sedimentation value. Significant differences were observed between the two parents for protein content. The F1 mean was lower than the low protein parent with the F2 mean intermediate between the two parents. This latter factor plus a high narrow sense heritability estimate suggest that the genetic variation associated with protein content was largely due to genes which act in an additive manner. Backcrosses to either parent shifted the population toward the mean of the recurrent parent. Transgressive segregation was observed in the F2 for both low and high protein content suggesting that selection for this trait should be effective in early generations. Parents differed significantly for lysine content with the winter parent, Yamhill displaying lysine values approaching the highest previously reported for wheat. Intermediate F1 and F2 population means and a high narrow sense heritability estimate suggest the genes involved function in an additive manner. The backcross progeny to Yamhill had a mean value approaching that of the recurrent parent. No transgressive segregation was observed in the F2 for lysine content higher than Yamhill. It appears that lysine content in this cross is qualitatively inherited and that selection for improved lysine content above Yamhill appears limited. The genetic variation associated with kernel hardness appears to be largely additive with F1 and F2 means intermediate between the two parents and a high narrow sense heritability estimate. Transgressive segregation was observed in the F2 generation for both soft and hard kernel types. Selection for this trait should be effective in early generations. Significant differences were observed for the parental types for sedimentation value. The F1 and F2 means were below the midparent value. No transgressive segregation was observed in the F2 for either low or high sedimentation value. One backcross to the low sedimentation parent brought the population back to the low parent mean. One backcross to the high sedimentation parent shifted the population toward the recurrent parent but no individuals were recovered that approached the high parent. From this study it appears that selection for high sedimentation value types would be very difficult. Evidence provided in this study supports the concept that winter x spring crosses can provide useable genetic variation for desirable quality factors.
Book Synopsis An Evaluation of Agronomic and Quality Characteristics of Progenies of Adapted X Exotic Spring Wheat (Triticum Aestivum L.) Crosses by : Patrick James Dooley
Download or read book An Evaluation of Agronomic and Quality Characteristics of Progenies of Adapted X Exotic Spring Wheat (Triticum Aestivum L.) Crosses written by Patrick James Dooley and published by . This book was released on 1984 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Diversity Among Parents and Performance of Single and Three-way Crosses in Winter Wheat by : Xin-Tong Yang
Download or read book Genetic Diversity Among Parents and Performance of Single and Three-way Crosses in Winter Wheat written by Xin-Tong Yang and published by . This book was released on 2000 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phenotyping for Plant Breeding by : Siva Kumar Panguluri
Download or read book Phenotyping for Plant Breeding written by Siva Kumar Panguluri and published by Springer Science & Business Media. This book was released on 2013-10-09 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant phenotyping is the thorough assessment of plant traits such as growth, development, adaptation, yield, quality, tolerance, resistance, architecture, and the basic measurement of individual quantitative parameters that form the basis for understanding of traits. Genetic approaches to understand plant growth and development have always benefitted from phenotyping techniques that are simple, rapid and measurable in units. The forward genetics approach is all about understanding the trait inheritance using the phenotypic data and in most cases it is the mutant phenotypes that formed the basis for understanding of gene functions. With rapid advancement of genotyping techniques, high throughput genotyping has become a reality at costs people never imagined to be that low, but the phenotypic methods did not receive same attention. However, without quality phenotyping data the genotyping data cannot be effectively put to use in plant improvement. Therefore efforts are underway to develop high-throughput phenotyping methods in plants to keep pace with revolutionary advancement in genotyping techniques to enhance the efficiency of crop improvement programs. Keeping this in mind, we described in this book the best phenomic tools available for trait improvement in some of the world’s most important crop plants.
Book Synopsis Advances in Wheat Genetics: From Genome to Field by : Yasunari Ogihara
Download or read book Advances in Wheat Genetics: From Genome to Field written by Yasunari Ogihara and published by Springer. This book was released on 2015-09-15 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings is a collection of 46 selected papers that were presented at the 12th International Wheat Genetics Symposium (IWGS). Since the launch of the wheat genome sequencing project in 2005, the arrival of draft genome sequences has marked a new era in wheat genetics and genomics, catalyzing rapid advancement in the field. This book provides a comprehensive review of the forefront of wheat research, across various important topics such as germplasm and genetic diversity, cytogenetics and allopolyploid evolution, genome sequencing, structural and functional genomics, gene function and molecular biology, biotic stress, abiotic stress, grain quality, and classical and molecular breeding. Following an introduction, 9 parts of the book are dedicated to each of these topics. A final, 11th part entitled “Toward Sustainable Wheat Production” contains 7 excellent papers that were presented in the 12th IWGS Special Session supported by the OECD. With rapid population growth and radical climate changes, the world faces a global food crisis and is in need of another Green Revolution to boost yields of wheat and other widely grown staple crops. Although this book focuses on wheat, many of the newly developed techniques and results presented here can be applied to other plant species with large and complex genomes. As such, this volume is highly recommended for all students and researchers in wheat sciences and related plant sciences and for those who are interested in stable food production and food security.
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index, 1861-1972: Agriculture by : Xerox University Microfilms
Download or read book Comprehensive Dissertation Index, 1861-1972: Agriculture written by Xerox University Microfilms and published by . This book was released on 1973 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Abstracts International by :
Download or read book Masters Abstracts International written by and published by . This book was released on 1996 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
