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Haploids in Crop Improvement I - From Fundamentals to Quantum Computing (Hardcover, 1990 ed.)
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Haploids in Crop Improvement I - From Fundamentals to Quantum Computing (Hardcover, 1990 ed.)
Series: Biotechnology in Agriculture and Forestry, 12
Expected to ship within 12 - 17 working days
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Haploid plants have the gametophytic number of chromosomes. They
are of great importance, especially in studies on the induction of
muta tions and also for the production of homozygous plants, they
are needed in large numbers. The conventional methods employed by
plant breeders for their production are cumbersome, time-consuming,
laborious and rather inefficient. Sometimes it may take years to
produce a pure line. However, with the introduction of in vitro
techniques, especially anther culture for the induction of
androgenesis, it has become increasingly evi dent that these
methods considerably accelerate the production of haploids for
plant breeding programs. During the last decade, in vitro-produced
haploids have been incor porated into breeding programs of many
agricultural crops, and positive results have been obtained
especially with rice, wheat, potato, barley, maize, asparagus,
sunflower, brassica, tobacco, etc. Among these, rice and wheat are
the best examples in which a number of improved varieties have been
released. In wheat, the breeding cycle can be shortened by three or
four generations when the pollen haploid breeding method is used
instead of conventional cross-breeding. The release of the wheat
varieties Jinghua 1 and Florin is a typical example of what can be
achieved with other crops. Taking these developments into considera
tion, the present volume, Haploids in Crop Improvement I, was
compil ed."
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