Advances in Molecular Breeding Toward Drought and Salt by Matthew A. Jenks, Paul M. Hasegawa, Shri Mohan Jain

By Matthew A. Jenks, Paul M. Hasegawa, Shri Mohan Jain

Plant rigidity because of drought and salinity are one of the significant constraints on crop creation and meals defense around the globe. Breeding courses to enhance crop yield in dry and saline environments have advanced slowly because of our constrained realizing of the underlying physiological, biochemical, developmental, and genetic mechanisms that make sure plant responses to those types of rigidity, in addition to to technical problems in combining favorable alleles to create the enhanced excessive yielding genotypes wanted for those environments. Advances in Molecular Breeding towards Drought and Salt Tolerant plants seeks to combine the latest findings approximately key organic determinants of plant rigidity tolerance with glossy crop development suggestions. This quantity is exclusive simply because is presents tremendously extensive assurance of present wisdom and services being utilized in drought and salt tolerance learn, spanning the clinical hierarchy from body structure, biochemistry, improvement, and genetics, to the latest applied sciences getting used to govern drought and salinity linked features for germplasm development. This ebook should be a useful reference for educators and researchers in agronomy and horticulture, crop breeding, molecular genetics, and biotechnology.

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1988. Kinetics of root elongation of maize in response to short-term exposure to NaCl and elevated calcium concentration. J. Exp. Bot. 39:1513–1522. R. and A. Läuchli. 1986. Ion activities in solution in relation to Na+ - Ca 2+ interactions at the plasmalemma. J. Exp. Bot. 37:321–330. , Läuchli A. and E. Epstein. 1986. Effects of NaCl and CaCl2 on ion activities in complex nutrient solutions and root growth of cotton. Plant Physiol. 81:792–797. S. Polito. 1985. Displacement of Ca2+ from the plasmalemma of root cells.

For some stress combinations, there are no or unknown mode of interactions. Therefore Mittler (2006) suggested that tolerance to a combination of stresses should be the focus of future research, particularly those where the goal is to develop transgenic crops with enhanced tolerance to natural adverse field conditions. PLANT GROWTH AND DEVELOPMENT UNDER SALINITY STRESS 25 Drought Heat Chilling Freezing Pathogen Nutrients Boron Flooding Humidity Salinity ? Drought ? Heat ? ? ? Chilling ? ?

J. Mendham. 2006. Physiological and cytological response of salt-tolerant and non-tolerant barley to salinity during germination and early growth. Aust. J. Exp. Agric. 46:555–562. K. 1990. (ed). Agricultural salinity assessment and management. ASCE manuals and reports on engineering practice No. 71. Am. Soc. , New York Tester M. and R. Davenport. 2003. Na+ tolerance and Na+ transport in higher plants. Ann. Bot. 91:503–527. , Lynch J. and A. Läuchli. 1988. Short-term effects of salinity stress on the turgor and elongation of growing barley leaves.

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