Download or read book Pre harvest Sprouting Resistance in White Wheats written by Debbie L. Jones and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic and Genomic Studies on Wheat Pre harvest Sprouting Resistance written by Meng Lin and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat pre-harvest sprouting (PHS), germination of physiologically matured grains in a wheat spike before harvesting, can cause significant reduction in grain yield and end-use quality. Many quantitative trait loci (QTL) for PHS resistance have been reported in different sources. To determine the genetic architecture of PHS resistance and its relationship with grain color (GC) in US hard winter wheat, a genome-wide association study (GWAS) on both PHS resistance and GC was conducted using in a panel of 185 U.S. elite breeding lines and cultivars and 90K wheat SNP arrrays. PHS resistance was assessed by evaluating sprouting rates in wheat spikes harvested from both greenhouse and field experiments. Thirteen QTLs for PHS resistance were identified on 11 chromosomes in at least two experiments, and the effects of these QTLs varied among different environments. The common QTLs for PHS resistance and GC were identified on the long arms of the chromosome 3A and 3D, indicating pleiotropic effect of the two QTLs. Significant QTLs were also detected on chromosome arms 3AS and 4AL, which were not related to GC, suggesting that it is possible to improve PHS resistance in white wheat. To identify markers closely linked to the 4AL QTL, genotyping-by-sequencing (GBS) technology was used to analyze a population of recombinant inbred lines (RILs) developed from a cross between two parents, "Tutoumai A" and "Siyang 936", contrasting in 4AL QTL. Several closely linked GBS SNP markers to the 4AL QTL were identified and some of them were coverted to KASP for marker-assisted breeding. To investigate effects of the two non-GC related QTLs on 3AS and 4AL, both QTLs were transferered from "Tutoumai A" and "AUS1408" into a susceptible US hard winter wheat breeding line, NW97S186, through marker-assisted backcrossing using the gene marker TaPHS1 for 3AS QTL and a tightly linked KASP marker we developed for 4AL QTL. The 3AS QTL (TaPHS1) significantly interacted with environments and genetic backgrounds, whereas 4AL QTL (TaMKK3-A) interacted with environments only. The two QTLs showed additive effects on PHS resistance, indicating pyramiding these two QTLs can increase PHS resistance. To improve breeding selection efficiency, genomic prediction using genome-wide markers and marker-based prediction (MBP) using selected trait-linked markers were conducted in the association panel. Among the four genomic prediction methods evaluated, the ridge regression best linear unbiased prediction (rrBLUP) provides the best prediction among the tested methods (rrBLUP, BayesB, BayesC and BayesC0). However, MBP using 11 significant SNPs identified in the association study provides a better prediction than genomic prediction. Therefore, for traits that are controlled by a few major QTLs, MBP may be more effective than genomic selection.
Download or read book Preharvest Sprouting Resistance and Grain Dormancy in White kernelled Wheats written by Andrew Hoffman Paterson and published by . This book was released on 1986 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed Dormancy Germination and Pre Harvest Sprouting written by Chengdao Li and published by Frontiers Media SA. This book was released on 2019-03-28 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pre-harvest sprouting (PHS) and late-maturity alpha-amylase (LMA) are two of the biggest grain quality defects that grain growers encounter. About 50 percent of the global wheat crop is affected by pre-harvest sprouting to various degrees. Pre-harvest sprouting is a genetically-based quality defect and results in the presence of alpha-amylase in otherwise sound mature grain. It can range from perhaps undetectable to severe damage on grain and is measured by the falling numbers or alpha-amylase activity. This is an international issue, with sprouting damage lowering the value of crops to growers, seed and grain merchants, millers, maltsters, bakers, other processors, and ultimately the consumer. As such it has attracted attention from researchers in many biological and non-biological disciplines. The 13th International Symposium on Pre-Harvest Sprouting in Cereals was held 18-20 September, 2016 in Perth to discuss current findings of grain physiology, genetic pathways, trait expression and screening methods related to pre-harvest sprouting and LMA. This event followed the previous symposium in 2012 in Canada.
Download or read book Development of Hard White Bread Wheat with Sprouting Resistance written by Pierre Hucl and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spring wheat grown in Saskatchewan has traditionally been red-grained. A shift in markets to the Pacific Rim has resulted in the need for white-grained cultivars, but white wheat germplasm has traditionally had poor pre-harvest sprouting resistance, presenting a drawback for the potential development of white wheat cultivars adapted to Saskatchewan. Seed dormancy is the main factor responsible for conferring pre-harvest sprouting tolerance to wheat grain. This report describes a project to develop hard white bread wheat cultivars with high seed dormancy levels. Standard small-plot techniques were used to evaluate hard white wheat experimental lines. Results of breeding efforts that started with testing of 280 advanced lines are presented.
Download or read book Development of Hard White Bread Wheat with Sprouting Resistance written by Hucl, Pierre and published by [Regina] : Agriculture Development Fund. This book was released on 2005 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification and Validation of Genomic Regions Associated with Pre harvest Sprouting Resistance in White grained Wheat triticum Aestivum L written by Rajender Singh and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pre harvest Sprouting in Cereals 1992 written by M. K. Walker-Simmons and published by . This book was released on 1993 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal reference for food chemists, physiologists, geneticists, and grain science researchers.
Download or read book The Encyclopedia of Seeds written by J. Derek Bewley and published by CABI. This book was released on 2006 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first scholarly reference work to cover all the major scientific themes and facets of the subject of seeds. It outlines the latest fundamental biological knowledge about seeds, together with the principles of agricultural seed processing, storage and sowing, the food and industrial uses of seeds, and the roles of seeds in history, economies and cultures. With contributions from 110 expert authors worldwide, the editors have created 560 authoritative articles, illustrated with plentiful tables, figures, black-and-white and color photographs, suggested further reading matter and 670 supplementary definitions. The contents are alphabetically arranged and cross-referenced to connect related entries.
Download or read book Identification and Validation of Genomic Regions Associated with Pre harvest Sprouting Resistance in White grained Wheat i triticum Aestivum i L written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization and Inheritance of Preharvest Sprouting Resistance in Clark s Cream White Winter Wheat Triticum Aestivum L written by Madhusudan P. Upadhyay and published by . This book was released on 1986 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Third International Symposium On Preharvest Sprouting In Cereals written by James Kruger and published by CRC Press. This book was released on 2019-06-25 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pre-harvest sprouting of cereals results in large economic losses each year for producers around the world. This volume, an outgrowth of the 1982 symposium held in Winnipeg, Canada, presents scientific research conducted internationally since 1978 and geared toward solving the problem of pre-harvest sprouting. Its multidisciplinary approach incorporates the perspectives of plant breeders, physiologists, and biochemists to provide a rounded discussion of the possible alternatives.
Download or read book Wheat written by W. Bushuk and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat provides over 20% of the calories for the world population of 5. 3 billion persons. It is widely grown in five of the six continents. It is a highly versatile food product in that it can be stored safely for long periods of time and transported in bulk over long distances. In relative terms, it is reasonably priced; over the past quarter century, the inflation-adjusted price of wheat has been declining. Modern milling and baking technology required for the transformation of wheat grain into consumable baked products is available or accessible in all countries of the world. For these reasons, and because Canada is one of world's leading wheat producing countries, it seemed appropriate to include a major symposium on wheat in the scientific and technical program of the 8th World Congress of Food Science and Technology held in Toronto, Canada during September 29-0ctober 4, 1992. In selecting the topics for the symposium on wheat, we attempted to cover a full range of subjects including economics and marketing, nutrition, grading, processing, constituent chemistry and functionality, biote- nology, and safety of genetically modified wheat varieties. The major focus was on common hard (bread) wheats; separate papers were devoted to the unique characteristics and technological properties of common soft (biscuit) and durum (pasta) wheats. Each paper was presented by an acknowledged international expert. This book provides a more permanent record of the papers presented at the symposium.
Download or read book Accelerated Breeding of Cereal Crops written by Andriy Bilichak and published by Humana. This book was released on 2022-10-22 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive collection of methods for plant breeders and researchers working in functional genomics of cereal crops. Chapters detail advances in sequencing of cereal genomes, methods of traditional plant breeding, use of machine learning for genomic selection, random and targeted mutagenesis with CRISPR/Cas9, quantitative proteomics and phenotyping in cereals. Authoritative and cutting-edge, Accelerated Breeding of Cereal Crops aims to be of interest to plant breeders, researchers, postdoctoral fellows, and students working in functional genomics for the development of the next generation of crop plants.
Download or read book Pre harvest Sprouting Tolerance in Hard White Winter Wheat written by Sudha R. Pisipati and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In many countries producers have been growing varieties of hard white winter (HWW) wheat since decades. The cause of concern is most varieties of HWW wheat are susceptible to pre-harvest sprouting (PHS) which affects grain quality. Environmental conditions like high humidity, precipitation, heavy dew and hormonal activity at physiological maturity stimulate PHS in HWW. To alleviate these conditions research was carried out at KSU. KS01HW163-4, a sprouting tolerance line was crossed with Heyne, a sprout susceptible cultivar. A total of 224 doubled haploid (DH) lines thus produced were phenotyped in the present study through experiments conducted in controlled environments. The objectives of this research were to (i) characterize and phenotype the doubled haploid lines for PHS in controlled environments; (ii) understand the impact of growth environment (high temperature and/or drought) and; (iii) impact of exogenous application of growth hormones on tolerance to pre-harvest sprouting in the parental lines of the doubled haploid population. The phenotypic data collected from this research will be ultimately combined with the genotypic data to identify DNA markers related to PHS tolerance and provide DNA markers for marker assisted selection. Based on my results of the germination percentages from the 224 DH lines, the population was distributed as susceptible, and tolerant to PHS showing a bimodal distribution and X[superscript]2 analysis indicating a complimentary gene action. From the study of the influence of environmental factors on PHS, my results confirmed a definite influence of stress on sprouting. Under optimum temperature (OT), KS01HS163-4 was tolerant to PHS, but at HT and/or drought it became susceptible to PHS. Growth under stressed conditions changed the tolerance levels to PHS. Seed dry-weight, and harvest index were also influenced negatively due to stress. Therefore multi-location tests must be conducted with variable environments to test the stability of a variety to PHS. From the study of the influence of phytohormones on PHS, the results suggest that tolerance to sprouting was seen in seeds from plants sprayed with abscisic acid (ABA) and paclobutrazol (GA-inhibitor) treatments where as those from gibberellic acid (GA) treatment showed susceptibility to sprouting.
Download or read book Pre harvest Sprouting in Cereals 1992 written by M. K. Walker-Simmons and published by . This book was released on 1993 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal reference for food chemists, physiologists, geneticists, and grain science researchers.
