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Books > Science & Mathematics > Biology, life sciences > Botany & plant sciences > Plant reproduction & propagation
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Physiological, Molecular, and Genetic Perspectives of Wheat Improvement (Paperback, 1st ed. 2021)
Loot Price: R6,482
Discovery Miles 64 820
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Physiological, Molecular, and Genetic Perspectives of Wheat Improvement (Paperback, 1st ed. 2021)
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World population is growing at an alarming rate and may exceed 9.7
billion by 2050, whereas agricultural productivity has been
negatively affected due to yield limiting factors such as biotic
and abiotic stresses as a result of global climate change. Wheat is
a staple crop for ~20% of the world population and its yield needs
be augmented correspondingly in order to satisfy the demands of our
increasing world population. "Green revolution", the introduction
of semi-dwarf, high yielding wheat varieties along with improved
agronomic management practices, gave rise to a substantial increase
in wheat production and self-sufficiency in developing countries
that include Mexico, India and other south Asian countries. Since
the late 1980's, however, wheat yield is at a standoff with little
fluctuation. The current trend is thus insufficient to meet the
demands of an increasing world population. Therefore, while
conventional breeding has had a great impact on wheat yield, with
climate change becoming a reality, newer molecular breeding and
management tools are needed to meet the goal of improving wheat
yield for the future. With the advance in our understanding of the
wheat genome and more importantly, the role of environmental
interactions on productivity, the idea of genomic selection has
been proposed to select for multi-genic quantitative traits early
in the breeding cycle. Accordingly genomic selection may remodel
wheat breeding with gain that is predicted to be 3 to 5 times that
of crossbreeding. Phenomics (high-throughput phenotyping) is
another fairly recent advancement using contemporary sensors for
wheat germplasm screening and as a selection tool. Lastly,
CRISPR/Cas9 ribonucleoprotein mediated genome editing technology
has been successfully utilized for efficient and specific genome
editing of hexaploid bread wheat. In summary, there has been
exciting progresses in the development of non-GM wheat plants
resistant to biotic and abiotic stress and/or wheat with improved
nutritional quality. We believe it is important to highlight these
novel research accomplishments for a broader audience, with the
hope that our readers will ultimately adopt these powerful
technologies for crops improvement in order to meet the demands of
an expanding world population.
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