Plant ideotype for high grain yield in deepwater rice
1990
Kalaya Kupkanchanakul | Tawee Kupkanchanakul | Suparb Runtan (Huntra Rice Experiment Station, Ayutthaya (Thailand))
Two field experiments were conducted under natural deepwater condition at the Huntra Rice Experiment Station, Ayutthaya, Thailand in 1988 and 1989 wet season to study growth performance and yield relationship of twenty deepwater rice cultivars. Yielding ability and agronomic characteristics differed among rice cultivars. Simple linear correlation analysis showed positive relationship between grain yield and panicle number, tiller number at maturity and harvest index but negative relationship with plant length. No strong relationship between grain yield and percent productive tiller, growth duration and dry matter production. The relationship between grain yield and panicle weight was positive in 1988 but negative in 1989.
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