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Waterlogging Signalling and Tolerance in Plants

2010-03-10 Science
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Release : 2010-03-10
Genre : Science
Kind : eBook
Book Rating : 057/5 ( reviews)

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Book Synopsis Waterlogging Signalling and Tolerance in Plants by : Stefano Mancuso

Download or read book Waterlogging Signalling and Tolerance in Plants written by Stefano Mancuso. This book was released on 2010-03-10. Available in PDF, EPUB and Kindle. Book excerpt: In the last half century, because of the raising world population and because of the many environmental issues posed by the industrialization, the amount of arable land per person has declined from 0.32 ha in 1961–1963 to 0.21 ha in 1997–1999 and is expected to drop further to 0.16 ha by 2030 and therefore is a severe menace to food security (FAO 2006). At the same time, about 12 million ha of irrigated land in the developing world has lost its productivity due to waterlogging and salinity. Waterlogging is a major problem for plant cultivation in many regions of the world. The reasons are in part due to climatic change that leads to the increased number of precipitations of great intensity, in part to land degradation. Considering India alone, the total area suffering from waterlogging is estimated to be about 3.3 million ha (Bhattacharya 1992), the major causes of waterlogging include super- ous irrigation supplies, seepage losses from canal, impeded sub-surface drainage, and lack of proper land development. In addition, many irrigated areas are s- jected to yield decline because of waterlogging due to inadequate drainage systems. Worldwide, it has been estimated that at least one-tenth of the irrigated cropland suffers from waterlogging.

Drought Stress Tolerance in Plants, Vol 1

2016-05-25 Technology & Engineering
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Release : 2016-05-25
Genre : Technology & Engineering
Kind : eBook
Book Rating : 997/5 ( reviews)

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Book Synopsis Drought Stress Tolerance in Plants, Vol 1 by : Mohammad Anwar Hossain

Download or read book Drought Stress Tolerance in Plants, Vol 1 written by Mohammad Anwar Hossain. This book was released on 2016-05-25. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic stress adversely affects crop production worldwide, decreasing average yields for most of the crops to 50%. Among various abiotic stresses affecting agricultural production, drought stress is considered to be the main source of yield reduction around the globe. Due to an increasing world population, drought stress will lead to a serious food shortage by 2050. The situation may become worse due to predicated global climate change that may multiply the frequency and duration and severity of such abiotic stresses. Hence, there is an urgent need to improve our understanding on complex mechanisms of drought stress tolerance and to develop modern varieties that are more resilient to drought stress. Identification of the potential novel genes responsible for drought tolerance in crop plants will contribute to understanding the molecular mechanism of crop responses to drought stress. The discovery of novel genes, the analysis of their expression patterns in response to drought stress, and the determination of their potential functions in drought stress adaptation will provide the basis of effective engineering strategies to enhance crop drought stress tolerance. Although the in-depth water stress tolerance mechanisms is still unclear, it can be to some extent explained on the basis of ion homeostasis mediated by stress adaptation effectors, toxic radical scavenging, osmolyte biosynthesis, water transport, and long distance signaling response coordination. Importantly, complete elucidation of the physiological, biochemical, and molecular mechanisms for drought stress, perception, transduction, and tolerance is still a challenge to the plant biologists. The findings presented in volume 1 call attention to the physiological and biochemical modalities of drought stress that influence crop productivity, whereas volume 2 summarizes our current understanding on the molecular and genetic mechanisms of drought stress resistance in plants.

Salt Stress in Plants

2013-02-26 Science
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Release : 2013-02-26
Genre : Science
Kind : eBook
Book Rating : 081/5 ( reviews)

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Book Synopsis Salt Stress in Plants by : Parvaiz Ahmad

Download or read book Salt Stress in Plants written by Parvaiz Ahmad. This book was released on 2013-02-26. Available in PDF, EPUB and Kindle. Book excerpt: Environmental conditions and changes, irrespective of source, cause a variety of stresses, one of the most prevalent of which is salt stress. Excess amount of salt in the soil adversely affects plant growth and development, and impairs production. Nearly 20% of the world’s cultivated area and nearly half of the world’s irrigated lands are affected by salinity. Processes such as seed germination, seedling growth and vigour, vegetative growth, flowering and fruit set are adversely affected by high salt concentration, ultimately causing diminished economic yield and also quality of produce. Most plants cannot tolerate salt-stress. High salt concentrations decrease the osmotic potential of soil solution, creating a water stress in plants and severe ion toxicity. The interactions of salts with mineral nutrition may result in nutrient imbalances and deficiencies. The consequence of all these can ultimately lead to plant death as a result of growth arrest and molecular damage. To achieve salt-tolerance, the foremost task is either to prevent or alleviate the damage, or to re-establish homeostatic conditions in the new stressful environment. Barring a few exceptions, the conventional breeding techniques have been unsuccessful in transferring the salt-tolerance trait to the target species. A host of genes encoding different structural and regulatory proteins have been used over the past 5–6 years for the development of a range of abiotic stress-tolerant plants. It has been shown that using regulatory genes is a more effective approach for developing stress-tolerant plants. Thus, understanding the molecular basis will be helpful in developing selection strategies for improving salinity tolerance. This book will shed light on the effect of salt stress on plants development, proteomics, genomics, genetic engineering, and plant adaptations, among other topics. The book will cover around 25 chapters with contributors from all over the world. ​​

Plant responses to flooding

2015-01-05 Botany
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Release : 2015-01-05
Genre : Botany
Kind : eBook
Book Rating : 047/5 ( reviews)

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Book Synopsis Plant responses to flooding by : Pierdomenico Perata

Download or read book Plant responses to flooding written by Pierdomenico Perata. This book was released on 2015-01-05. Available in PDF, EPUB and Kindle. Book excerpt:

Prioritizing the Rice Biotechnology Research Agenda for Eastern India

1990 Rice
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Release : 1990
Genre : Rice
Kind : eBook
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Book Synopsis Prioritizing the Rice Biotechnology Research Agenda for Eastern India by : David A. Widawsky

Download or read book Prioritizing the Rice Biotechnology Research Agenda for Eastern India written by David A. Widawsky. This book was released on 1990. Available in PDF, EPUB and Kindle. Book excerpt:

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