Download or read book Breeding for Nitrogen Use Efficiency in Soft Red Winter Wheat written by Katlyn L. Hitz and published by . This book was released on 2015 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Use Efficiency in Hard Red Winter Wheat written by Sonia Guadalupe Morales Osegueda and published by . This book was released on 1994 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Use Efficiency and Nitrogen Response of Wheat Varieties Commonly Grown in the Great Plains USA written by Nathaniel D. Dorsey and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing nitrogen use efficiency (NUE) and nitrogen response in winter wheat could help producers reduce input costs associated with nitrogen fertilizers and decrease the negative environmental impacts of N loss. The objectives of this research were to i) establish if there are genetic differences in NUE and other related parameters among wheat varieties commonly grown in the Great Plains, ii) determine if there are differences in N response among select varieties with a range of NUEs, and iii) determine if NUE influences N response. This information could be useful in future breeding efforts as researchers seek to develop more efficient varieties. This was approached by conducting two separate studies, a large NUE study with 25 winter wheat varieties, and a smaller N Rate study with 4 varieties that represented a range of NUEs based on the preliminary results of the NUE study. The NUE study was conducted over the course of several seasons and locations, with treatments of consisting of N Rate and variety. The experiment was laid out in a strip-plot design and replicated four times at each location. In the 2010-11 and 2011-12 seasons it was planted at the Kansas River Valley Experiment Field in Rossville, KS. In the 2012-13 season the experiment was planted at two locations, one at Silverlake and another at Ashland Bottoms, KS. The experiment was again planted at two locations in the fall of 2013, in Ashland Bottoms, KS, and Hutchinson, KS. The wheat varieties were grown with two N rates, 0 kg N ha−1 and 90 kg N ha−1. Nitrogen use efficiency was calculated as the grain yield per unit of available nitrogen (sum of soil N and fertilizer N) and ranged from 22-30 kg of grain per kg of N and was strongly influenced by variety with a p
Download or read book Breeding Wheat for Efficient Nitrogen Use in Low input and Organic Systems in the Pacific Northwest written by Julie C. Dawson and published by . This book was released on 2008 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating Methods for Improving Nitrogen Use Efficiency in Corn and Hard Red Winter Wheat written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Physiology in Wheat Breeding written by M. P. Reynolds and published by CIMMYT. This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops written by Malcolm J. Hawkesford and published by John Wiley & Sons. This book was released on 2011-09-21 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts to increase efficient nutrient use by crops are of growing importance as the global demand for food, fibre and fuel increases and competition for resources intensifies. The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops provides both a timely summary of the latest advances in the field as well as anticipating directions for future research. The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops bridges the gap between agronomic practice and molecular biology by linking underpinning molecular mechanisms to the physiological and agronomic aspects of crop yield. These chapters provide an understanding of molecular and physiological mechanisms that will allow researchers to continue to target and improve complex traits for crop improvement. Written by leading international researchers, The Molecular and Physiological Basis of Nutrient Use Efficiency in Crops will be an essential resource for the crop science community for years to come. Special Features: coalesces current knowledge in the areas of efficient acquisition and utilization of nutrients by crop plants with emphasis on modern developments addresses future directions in crop nutrition in the light of changing climate patterns including temperature and water availability bridges the gap between traditional agronomy and molecular biology with focus on underpinning molecular mechanisms and their effects on crop yield includes contributions from a leading team of global experts in both research and practical settings
Download or read book Improving Baking Quality of Soft Red Winter Wheat in Kentucky Through Breeding and Sulfur nitrogen Fertility Management written by Maria Paula Castellari and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Variety on Nitrogen Use Efficiency of Bread wheat written by J. P. Cohan and published by . This book was released on 2017 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Breeding Reviews written by Jules Janick and published by John Wiley & Sons. This book was released on 2016-08-31 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant Breeding Reviews presents state-of-the-art reviews on plant genetics and the breeding of all types of crops by both traditional means and molecular methods. Many of the crops widely grown today stem from a very narrow genetic base; understanding and preserving crop genetic resources is vital to the security of food systems worldwide. The emphasis of the series is on methodology, a fundamental understanding of crop genetics, and applications to major crops.
Download or read book Performance of Winter Wheat for Grain Yield and Nitrogen Use Efficiency Using Canopy Reflectance Indices written by Zewdie Alemayehu Abate and published by . This book was released on 2001 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Breeding in Wheat Maize and Sorghum written by Mohammad Anwar Hossain and published by CABI. This book was released on 2021-06-30 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Effect of Tillage and Anhydrous Ammonia Application on Nitrogen Use Efficiency of Hard Red Winter Wheat written by Roger Keith Teal and published by . This book was released on 2002 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen Use Efficiency Inwheat in Bread Wheat T Aestivum L written by Fabien Cormier and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a context of fertiliser reduction, breeding for enhanced nitrogen use efficiency in bread wheat is necessary. This PhD thesis resulting from private-public collaboration between the French National Institute for Agricultural Research and Biogemma aimed providing necessary tools. Analyses were conducted using a dataset of 225 commercial varieties genotyped with 24K SNP and tested in eight combinations of year, location, and nitrogen regimes. We showed that even if past selection increased nitrogen use efficiency at high and moderate nitrogen regimes, genetic progresses need to be accelerated and better balanced between traits. This could be achieved by mixing phenotypic and marker assisted selections. In this sense, we developed a method to define quantitative trait locus from genome-wide association study: 333 chromosomal regions involved in 28 NUE-related traits have been identified. The NAM-A1 gene was located in one of these regions and its natural variants were characterized. We also showed that genomic selection could be improved by pre-selecting SNP based on their significance in a multi-environmental genome-wide association study. Networks of epistasis interactions were also studied and an interesting sub-network was identified. Results and methods are discussed regarding breeding and gene discovery strategy. Further investigations and improvements are suggested.
Download or read book Stabilized Nitrogen Management for Soft Red Winter Wheat Production in Missouri written by Fanson Majani Kidwaro and published by . This book was released on 1996 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The utilization of nitrapyrin in nitrogen (N) management may be an important tool for increasing soft red winter wheat yields in Missouri. The objectives of this study were to: (1) Determine the duration of ammonium retention in the soil profile during fall and winter growth periods from anhydrous ammonia fertilizer treated with nitrapyrin(2-chloro-6-(trichloromethyl) pyridine); (2) Evaluate fall and split applications of anhydrous ammonia with or without nitrapyrin for soft red winter wheat in Missouri; and (3) Relate crop yield to NH$\sb4\sp{+}$/NO$\sb3\sp{-}$ soil ratios. Anhydrous ammonia was applied with and without nitrapyrin on a Mexico silt loam (fine montmorillonitic, udolic ochraqualf). Three days after application of anhydrous ammonia, soil samples were collected from the injection zone (IZ) and the surrounding profile up to 8 cm from the IZ. Higher levels of ammonium (NH$\sb4\sp{+}$) were retained in the soil profile in plots treated with nitrapyrin during both 1991-92 and 1992-93 sampling periods. Overall nitrate (NO$\sb3\sp{-}$) levels in the soil profile increased during the first three weeks of the study, but then decreased following wheat establishment and remained relatively low during both 1991-92 and 1992-93 sampling periods. There was a negative relationship between declining NH$\sb4\sp{+}$ levels and cumulative heat units in treatments with and without nitrapyrin during both growing periods. Nitrapyrin improved NH$\sb4\sp{+}$ retention in the soil profile during fall and winter sampling periods. There was no yield response to improved NH$\sb4\sp{+}$ retention by nitrapyrin across sites during the three year study. Yield components and harvest index (HI) were not influenced by split N treatments with or without nitrapyrin. Nitrapyrin did not increase nitrogen use efficiency (NUE), however, NUE increased with increasing spring N application. Lack of yield response to nitrapyrin clearly indicates that nitrapyrin is not an important tool to be incorporated into the N management for soft red winter wheat production in Missouri.
Download or read book Genotype Environment Management written by Kathleen G. Russell and published by . This book was released on 2017 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book In Season Prediction of Nitrogen Use Efficiency and Grain Protein in Winter Wheat Triticum Aestivum L written by Natasha Elizabeth Macnack and published by . This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
