Worldwide, more than 2252 varieties have been released as direct mutants or
from their progenies during the past seventy years (Ahloowalia et al., 2004). Most
mutant varieties (1,603) were released in seed-propagated species, which include
1,072 cereals and 311 legumes (Maluszynski et al., 2000). Radiation has been the
most frequently used method for directly developed mutant varieties, while the use of
chemical mutagens was relatively infrequent. In several mutation-derived varieties,
the changed traits have resulted even in synergistic effect on increasing the yield and
quality of the crop and consumer acceptance (Ahloowalia et al., 2004).
Worldwide, more than 2252 varieties have been released as direct mutants orfrom their progenies during the past seventy years (Ahloowalia et al., 2004). Mostmutant varieties (1,603) were released in seed-propagated species, which include1,072 cereals and 311 legumes (Maluszynski et al., 2000). Radiation has been themost frequently used method for directly developed mutant varieties, while the use ofchemical mutagens was relatively infrequent. In several mutation-derived varieties,the changed traits have resulted even in synergistic effect on increasing the yield andquality of the crop and consumer acceptance (Ahloowalia et al., 2004).
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