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After 30 days of
exposure under concentrations of 20 m Nacl in culture solution, transformed
plants increased in height a mean of 80% whereas control plants increased
only a mean of 22% over the same interval. This approach is worth trying in
rice.
In some areas rice crop suffers from floods when it is submerged under
water for up to 10 days. Rice cultivars cannot survive such prolonged
submergence. A few rice cultivars have been identified which survive
submergence for 8-10 days. Using FR13A one of the submergence tolerant
donors, improved rice cultivars with submergence tolerance have been
developed (MacKill et al 1993).
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