Methodologies for Root Drought Studies in Rice PDF Download
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Author: H. E. Shashidhar
Publisher: Int. Rice Res. Inst.
ISBN: 9712202909
Category : Rice
Languages : en
Pages : 73
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Book Description
Author: H. E. Shashidhar
Publisher: Int. Rice Res. Inst.
ISBN: 9712202909
Category : Rice
Languages : en
Pages : 73
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Book Description
Author: International Rice Research Institute
Publisher: Int. Rice Res. Inst.
ISBN: 9711040786
Category : Crop yields
Languages : en
Pages : 422
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Book Description
Author:
Publisher: Luis B. Gómez-Luciano
ISBN:
Category :
Languages : en
Pages : 93
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Book Description
Author: G. J. D. Kirk
Publisher: Int. Rice Res. Inst.
ISBN: 9712200507
Category : Rice
Languages : en
Pages : 94
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Book Description
The rice-root-soil interface; Root growth and nitrogen uptake in rice: concepts for modeling; Genetic variation in nitrogen uptake by rice and the effects of management and soil fertility; Use of molecular markers to evaluate rice genetic variation in associative N2 fixation, N uptake, and N use efficiency; Rainfed lowland rice roots: soil and hydrological effects; Rice root traits for drought resistance and their genetic variation; Use of molecular markers to exploit rice root traits for drought tolerance.
Author: Mirza Hasanuzzaman
Publisher: Woodhead Publishing
ISBN: 0128143339
Category : Business & Economics
Languages : en
Pages : 986
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Book Description
Advances in Rice Research for Abiotic Stress Tolerance provides an important guide to recognizing, assessing and addressing the broad range of environmental factors that can inhibit rice yield. As a staple food for nearly half of the world’s population, and in light of projected population growth, improving and increasing rice yield is imperative. This book presents current research on abiotic stresses including extreme temperature variance, drought, hypoxia, salinity, heavy metal, nutrient deficiency and toxicity stresses. Going further, it identifies a variety of approaches to alleviate the damaging effects and improving the stress tolerance of rice. Advances in Rice Research for Abiotic Stress Tolerance provides an important reference for those ensuring optimal yields from this globally important food crop. Covers aspects of abiotic stress, from research, history, practical field problems faced by rice, and the possible remedies to the adverse effects of abiotic stresses Provides practical insights into a wide range of management and crop improvement practices Presents a valuable, single-volume sourcebook for rice scientists dealing with agronomy, physiology, molecular biology and biotechnology
Author: IRRI
Publisher: IRRI
ISBN:
Category : Science
Languages : en
Pages : 72
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Book Description
In this manual, we provide detailed protocols for screening rice under the major stresses affecting both rainfed and irrigated rice: submergence, salinity, drought, and the soil problems – excess iron and aluminum. We also include protocols for a new area of abiotic stress research since it is increasingly occurring in farmers’ field due to climate change: combined stresses. Results from these protocols on combined drought + salinity and submergence + salinity indicate that the effects on the rice plant are sometimes different than under individual stresses. The protocols in this manual have been developed and optimized over decades at IRRI. Numerous scientists, technical staff and students have been involved in the development and use of these protocols, and it is often their experiences that have led to improvements, all of which are highly acknowledged. Our objective with this compilation is to provide a resource for researchers around the globe who aim to improve the abiotic stress tolerance of rice as part of the effort to benefit rice farmers in both rainfed and irrigated areas affected by abiotic stresses
Author: Rachid Serraj
Publisher: World Scientific
ISBN: 9814467383
Category : Technology & Engineering
Languages : en
Pages : 409
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Book Description
The success of the Green Revolution in closing the gap between world population and food production was principally achieved by increasing crop productivity in favorable areas. However, this success has been limited in the rainfed systems, which are prone to frequent droughts and other abiotic stresses. Worldwide, drought affects approximately 23 million hectares of rainfed rice. Varieties combining improved drought resistance with high yield under favorable conditions and quality characteristics preferred by farmers are the most promising and deliverable technologies for alleviating poverty in communities dependent on rainfed rice production.This book describes some of the recent advances in the genetics and physiology of drought resistant rice varieties and the integration of highly efficient breeding and genetic analysis techniques with functional genomics. Harnessing recent scientific breakthroughs, Drought Frontiers Project (seeds.irri.org/drought) is launched as a major assault on the problem of improving drought resistance in rice. Featuring contributions from leading international experts, case studies are discussed to present perspectives on the various multidisciplinary facets of drought resistance in rice, along with the involvement of natural resource management practices and the socioeconomic implications that entail. Readers will be better informed of this highly relevant and complex topic of improving rice drought resistance in a global environment characterized by increased water scarcity./a
Author: Ricardo Aroca
Publisher: Springer Science & Business Media
ISBN: 3642326536
Category : Science
Languages : en
Pages : 460
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Book Description
This book provides a comprehensive overview of the multiple strategies that plants have developed to cope with drought, one of the most severe environmental stresses. Experts in the field present 17 chapters, each of which focuses on a basic concept as well as the latest findings. The following major aspects are covered in the book: · Morphological and anatomical adaptations · Physiological responses · Biochemical and molecular responses · Ecophysiological responses · Responses to drought under field conditions The contributions will serve as an invaluable source of information for researchers and advanced students in the fields of plant sciences, agriculture, ecophysiology, biochemistry and molecular biology.
Author: Mohammad Anwar Hossain
Publisher: John Wiley & Sons
ISBN: 1119633117
Category : Science
Languages : en
Pages : 484
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Book Description
Presents the latest knowledge of improving the stress tolerance, yield, and quality of rice crops One of the most important cereal crops, rice provides food to more than half of the world population. Various abiotic stresses—currently impacting an estimated 60% of crop yields—are projected to increase in severity and frequency due to climate change. In light of the threat of global food grain insecurity, interest in molecular rice breeding has intensified in recent years. Progress has been made, but there remains an urgent need to develop stress-tolerant, bio-fortified rice varieties that provide consistent and high-quality yields under both stress and non-stress conditions. Molecular Breeding for Rice Abiotic Stress Tolerance and Nutritional Quality is the first book to provide comprehensive and up-to-date coverage of this critical topic, containing the physiological, biochemical, and molecular information required to develop effective engineering strategies for enhancing rice yield. Authoritative and in-depth chapters examine the molecular and genetic bases of abiotic stress tolerance, discuss yield and quality improvement of rice, and explore new approaches to better utilize natural resources through modern breeding. Topics Include rice adaptation to climate change, enriching rice yields under low phosphorus and light intensity, increasing iron, zinc, vitamin and antioxidant content, and improving tolerance to salinity, drought, heat, cold, submergence, heavy metals and Ultraviolet-B radiation. This important resource: Contains the latest scientific information on a wide range of topics central to molecular breeding for rice Provides timely coverage molecular breeding for improving abiotic stress tolerance, bioavailability of essential micronutrients, and crop productivity through biotechnological methods Features detailed chapters written by internationally-recognized experts in the field Discusses recent progress and future directions in molecular breeding strategies and research Molecular Breeding for Rice Abiotic Stress Tolerance and Nutritional Quality is required reading for rice researchers, agriculturists, and agribusiness professionals, and the ideal text for instructors and students in molecular plant breeding, abiotic stress tolerance, environmental science, and plant physiology, biochemistry, molecular biology, and biotechnology.
Author: Muteb Daham Q Alrifdi
Publisher:
ISBN:
Category :
Languages : en
Pages : 180
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Book Description
Rice (Oryza sativa L.) is an important crop cultivated worldwide, and abiotic stresses limit its productivity. Different approaches were carried out to understand the mechanisms of rice defense responses against abiotic stresses, mainly drought. The NADPH-generating enzymes engaged in response to dehydration and salt stresses during the seedling stage of Nipponbare cultivar were analyzed. Enzyme activities of 6-phosphogluconate dehydrogenase (6PGDH), NADP-dependent aldehyde dehydrogenase, NADP-malic enzyme (NADP-ME) in leaves, and 6PGDH in roots were significantly increased in response to dehydration stress. NADP-ME and NADP-glutamate dehydrogenase activities in roots increased significantly in response to salt stress. These results suggest the involvement of NADPH-generating enzymes in plant responses to dehydration and salinity stresses, and the increased demands of NADPH in plants under abiotic stress can be furnished by enhanced activities of NADPH-producing enzymes. Also, a dehydration-induced protein was detected and identified as serine-hydroxymethyltransferase. This result indicates that serine-hydroxymethyltransferase can play a key role in regulating dehydration response in rice. Moreover, comparative proteomic analyses of CL163 (drought-tolerant), Cheniere (drought-sensitive), and Rex (moderately-drought-sensitive) rice varieties were performed. Drought-responsive proteome changes were profiled in leaves and roots at the seedling stage in response to drought stress imposed by polyethylene glycol (PEG-6000). Eighteen significantly differentially expressed proteins were identified by mass spectrometry. Elongate factor1 alpha and 17.9-kDa classI heat shock protein appear to have different expression patterns between CL163 and Cheniere, which may be attributable to the difference in drought response of the two rice varieties. Furthermore, a compendium of 103 drought resistance genes in rice was compiled to construct and analyze networks formed by associations between genes/proteins and to identify the most significant genes, biological processes/pathways. Genes were classified based on gene ontology and protein class into 26 groups. Forty-two genes were classified as transcription factors. Proteins encoded by the genes were localized in 8 subcellular locations and classified into three classes. Two pathways from KEGG whose genes were overrepresented in the compendium were identified. Gene expression, network presenting pairwise interactions between genes/proteins, and co-expression network were constructed. This study provides a systematic view of the crucial genes that can be contributing collectively to drought tolerance.
