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Seedcoat Colour And Dormancy In Wheat Triticum Aestivum L
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Book Synopsis Seedcoat Color and Dormancy in Triticum Aestivum L. by : Russell D. Freed
Download or read book Seedcoat Color and Dormancy in Triticum Aestivum L. written by Russell D. Freed and published by . This book was released on 1972 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedcoat Colour and Dormancy in Wheat, Triticum Aestivum L. by : Russell D. Freed
Download or read book Seedcoat Colour and Dormancy in Wheat, Triticum Aestivum L. written by Russell D. Freed and published by . This book was released on 1975 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seedcoat Color and Dormancy in Wheat, Triticum Aestivum L. by : Russell D. Freed
Download or read book Seedcoat Color and Dormancy in Wheat, Triticum Aestivum L. written by Russell D. Freed and published by . This book was released on 1972 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Glume Pigmentation on the Post-harvest Dormancy of Common Wheat, Triticum Aestivum L. by : Bahman Ehdaie
Download or read book The Effect of Glume Pigmentation on the Post-harvest Dormancy of Common Wheat, Triticum Aestivum L. written by Bahman Ehdaie and published by . This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Role of the Seed Coat in the Dormancy of Wheat (Triticum Aestivum) Grains by : Judith Rebecca Rathjen
Download or read book Role of the Seed Coat in the Dormancy of Wheat (Triticum Aestivum) Grains written by Judith Rebecca Rathjen and published by . This book was released on 2006 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pre-harvest sprouting (PHS) is an important economic problem which affects a significant proportion of the Australian wheat crop through quality downgrading. Grain dormancy is the most effective means of overcoming germination in the wheat spikelet at harvest maturity. It has been a consistent observation over a long period of time that dormant red-grained wheat genotypes are almost more dormant than dormant white-grained genotypes. In white-grained wheat, there are two factors which contribute to dormancy, embryo sensitivity to abscisic acid (ABA) and an interacting and unknown seed coat factor. The proposed dormancy model is that complete dormancy can only be achieved with the coordinate expression of these two factors. This primary objective of this project was to determine the role of this putative seed coat factor in grain dormancy of white-grained wheat."--Abstract.
Book Synopsis Seed Longevity and Dormancy in Wheat (Triticum Aestivum L.) by : Mian Abdur Rehman Arif
Download or read book Seed Longevity and Dormancy in Wheat (Triticum Aestivum L.) written by Mian Abdur Rehman Arif and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was undertaken to map quantitative trait loci (QTLs) and marker trait associations (MTAs) controlling seed longevity and dormancy in wheat using one bi-parental and two association mapping populations. QTL analysis of bi-parental 'International Triticeae Mapping Initiative' population reproduced in two different seasons resulted in the identification of one major and nine minor QTLs for seed longevity. There was one major QTL for dormancy observed on chromosome 4AL. The location of this QTL does not match with any of the longevity QTLs. One set of 96 winter wheat accessions (advanced gemplasm collection) and one set of 183 accessions consisting of a mixture of spring and winter wheat (genebank collection) revealed 73 and 340 MTAs for seed longevity, respectively. Of the 340 MTAs, 134 MTAs were observed after long term cold storage but the others after experimental ageing in genebank collection. The associations were distributed over all the wheat chromosomes except 4D which was not covered with markers. Results obtained after long term cold storage and experimental ageing did match only to some extent in this study which could be due to different quality of seeds produced during different seasons. However, it also can be proposed that different mechanisms are involved during deterioration in cold storage over long periods and decaying during artificial ageing treatments. For dormancy, there were 68 and 118 MTAs identified in the advanced germplasm collection and genebank collection, respectively, in addition to one major QTL on chromosome 4A in the ITMI population. Similarly, pre-harvest sprouting revealed 32 and 193 MTAs in case of advanced germplasm collection and genebank accessions, respectively. Co-linearity was found among wheat, rice and barley for loci influencing dormancy and PHS.
Book Synopsis Phenotypic and Genotypic Studies of Red Seed Coat Color in Wheat (Triticum Aestivum L.) by : Caleb Carbine Squires
Download or read book Phenotypic and Genotypic Studies of Red Seed Coat Color in Wheat (Triticum Aestivum L.) written by Caleb Carbine Squires and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological and Genetic Studies on Seed Dormancy and Preharvest Sprouting Resistance in Wheat (Triticum Aestivum L.) by : Craig F. Morris
Download or read book Physiological and Genetic Studies on Seed Dormancy and Preharvest Sprouting Resistance in Wheat (Triticum Aestivum L.) written by Craig F. Morris and published by . This book was released on 1988 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seed Dormancy and Alpha Amylase Activity in Wheat, Triticum Aestivum L by : Kåre Ringlund
Download or read book Seed Dormancy and Alpha Amylase Activity in Wheat, Triticum Aestivum L written by Kåre Ringlund and published by . This book was released on 1970 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Endogenous Germination Inhibitors in the Seed Dormancy of Wheat by : Geoffrey Graham Fraser
Download or read book Endogenous Germination Inhibitors in the Seed Dormancy of Wheat written by Geoffrey Graham Fraser and published by . This book was released on 1980 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dormancy in Wheat Grain (Triticum Aestivum L.) by : Isabelle Marjorie Verry
Download or read book Dormancy in Wheat Grain (Triticum Aestivum L.) written by Isabelle Marjorie Verry and published by . This book was released on 1978 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Loss of Seed Dormancy and the Relationship Between Dormancy and Embryo Culture in Wheat (Triticum Aestivum L.) by : Victor Louis DeMacon
Download or read book Loss of Seed Dormancy and the Relationship Between Dormancy and Embryo Culture in Wheat (Triticum Aestivum L.) written by Victor Louis DeMacon and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preharvest Field sprouting in Cereals by : N.F. Derera
Download or read book Preharvest Field sprouting in Cereals written by N.F. Derera and published by CRC Press. This book was released on 2018-01-18 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the research done on preharvest sprouting during recent years. Naturally, whenever needed, earlier findings are also considered. Both publishers and the authors hope that his publication will provide researchers and students with a convenient source of up-to-date information in this expanding field.
Book Synopsis Pre-harvest Sprouting and Seed Dormancy in Hard Red and Hard Winter Wheat (Triticum Aestivum L.) by : Andrew James McCrate
Download or read book Pre-harvest Sprouting and Seed Dormancy in Hard Red and Hard Winter Wheat (Triticum Aestivum L.) written by Andrew James McCrate and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Temperature on Seed Dormancy and Alpha-amylase Activity During Kernel Maturation and Germination in Wheat (Triticum Aestivum L.) Cultivars by : Lekkala Vijayasimha Reddy
Download or read book Effect of Temperature on Seed Dormancy and Alpha-amylase Activity During Kernel Maturation and Germination in Wheat (Triticum Aestivum L.) Cultivars written by Lekkala Vijayasimha Reddy and published by . This book was released on 1978 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effect of temperature on seed dormancy, alpha-amylase activity and kernel weight in five wheat (Triticum aestivum L.) varieties was studied. Three ripening temperature conditions - 15.5°C, 26.6 °C and "Field" were used to induce dormancy. Alpha-amylase activity and kernel weight of developing kernels was determined every ten days after anthesis until maturity. Dormancy in kernels was examined at germination temperatures of 15. 5°C, 20°C and 26. 6°C. Alpha- amylase activity during germination of kernels was determined on 1st, 2nd, 3rd and 6th day. In developing kernels alpha-amylase activity peaked at 10 to 20 days after anthesis and dropped or levelled-off as the kernels approached maturity. This was observed at both 15.5°C and 26.6° C . However, the peak was not obvious at 26.6°C because of the enzyme activity was lower at this temperature than at 15.5°C. In kernels ripened in field, the enzyme activity fluctuated apparently depending upon the changes in weather conditions, especially temperature. A faster growth of kernels and higher final dry kernel weight were noticed at 26.6°C and field temperature conditions than at 15.5°C. Significant varietal differences were observed in both alpha-amylase activity in kernels and kernel weight during the development and maturation of kernels. Kernels of all varieties, ripened at 26.6 °C, germinated as fast as non-dormant check kernels at 15.5°C but exhibited varying degrees of dormancy when germinated at 20 °C and 26.6°C. In contrast, kernels of Brevor, Tom Thumb and P.I. 178211, ripened at 15.5 °C showed a high level of dormancy as shown by their failure to germinate at 20 °C and 26.6 °C, and slow germination at 15.5° C. Kernels of Hyslop and Yamhill, ripened at 15.5°C, did not show dormancy at 15.5°C but showed some dormancy at 20°C and 26.6°C. This dormancy, however, was less than in Brevor, Tom Thumb and P.I. 178211. Field ripened kernels of Yamhill and Hyslpp when germinated at 15.5°C, did not show any dormancy; whereas, P.I. 178211, Brevor and Tom Thumb expressed different degrees of dormancy. Kernels of all varieties, ripened in the field, when germinated at 20°C or 26.6 °C, showed different degrees of dormancy except Yamhill. Yamhill did not differ significantly from the one year old non-dormant check kernels at 26.6° C . A substantial increse in alpha-amylase occurred only in germinated kernels. Although kernels of all varieties ripened at 26.6°C showed about the same weighted germination percentage at 15.5°C, germinated kernels of Yamhill, Hyslop and P.I. 178211 and had highly significant greater alpha-amylase activity than those of Brevor and Tom Thumb. In general, lower alpha-amylase activity was observed at higher germination temperatures. However, the data indicate that the enzyme activity depends to some extent on the ripening temperature conditions. Thus the results indicated that seed dormancy, alpha-amylase activity and kernel weight are determined by the genotype of a variety and influenced by the temperature during maturation and germination of kernels.
Book Synopsis Seed Dormancy, Germination and Pre-Harvest Sprouting by : Chengdao Li
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.
Book Synopsis Investigations Into the Genetics of Kernel Color and Dormancy in Wheat (Triticum Aestivum L.) by : Feroza Nisar Khan
Download or read book Investigations Into the Genetics of Kernel Color and Dormancy in Wheat (Triticum Aestivum L.) written by Feroza Nisar Khan and published by . This book was released on 1977 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: