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Books > Professional & Technical > Biochemical engineering > Biotechnology
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Maize Improvement - Current Advances in Yield, Quality, and Stress Tolerance under Changing Climatic Scenarios (Hardcover, 1st ed. 2023)
Loot Price: R4,914
Discovery Miles 49 140
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Maize Improvement - Current Advances in Yield, Quality, and Stress Tolerance under Changing Climatic Scenarios (Hardcover, 1st ed. 2023)
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Maize is one of the most generally grown cereal crops at global
level, followed by wheat and rice. Maize is the major crop in China
both in terms of yield and acreage. In 2012, worldwide maize
production was about 840 million tons. Maize has long been a staple
food of most of the global population (particularly in South
America and Africa) and a key nutrient resource for animal feed and
for food industrial materials. Maize belts vary from the latitude
58° north to the latitude 40° south, and maize ripens every month
of the year. Abiotic and biotic stresses are common in maize belts
worldwide. Abiotic stresses (chiefly drought, salinity, and extreme
temperatures), together with biotic stresses (primarily fungi,
viruses, and pests), negatively affect maize growth, development,
production and productivity. In the recent past, intense droughts,
waterlogging, and extreme temperatures have relentlessly affected
maize growth and yield. In China, 60% of the maize planting area is
prone to drought, and the resultant yield loss is 20%–30% per
year; in India, 25%–30% of the maize yield is lost as a result of
waterlogging each year. The biotic stresses on maize are chiefly
pathogens (fungal, bacterial, and viral), and the consequential
syndromes, like ear/stalk rot, rough dwarf disease, and northern
leaf blight, are widespread and result in grave damage. Roughly 10%
of the global maize yield is lost each year as a result of biotic
stresses. For example, the European corn borer [ECB,
Ostrinianubilalis (Hübner)] causes yield losses of up to 2000
million dollars annually in the USA alone in the northern regions
of China, the maize yield loss reaches 50% during years when maize
badly affected by northern leaf blight. In addition, abiotic and
biotic stresses time and again are present at the same time and
rigorously influence maize production. To fulfill requirements of
each maize-growing situation and to tackle the above mentions
stresses in an effective way sensibly designed multidisciplinary
strategy for developing suitable varieties for each of these
stresses has been attempted during the last decade. Genomics
is a field of supreme significance for elucidating the genetic
architecture of complex quantitative traits and characterizing
germplasm collections to achieve precise and specific manipulation
of desirable alleles/genes. Advances in genotyping technologies and
high throughput phenomics approaches have resulted in accelerated
crop improvement like genomic selection, speed breeding,
particularly in maize. Molecular breeding tools like
collaborating all omics, has led to the development of maize
genotypes having higher yields, improved quality and resilience to
biotic and abiotic stresses. Through this book, we bring into one
volume the various important aspects of maize improvement and the
recent technological advances in development of maize genotypes
with high yield, high quality and resilience to biotic and abiotic
stresses
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