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Genotypic Differences in Yield and Yield-related Elements of Rice under Elevated Air Temperature Conditions
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 Title & Authors
Genotypic Differences in Yield and Yield-related Elements of Rice under Elevated Air Temperature Conditions
Lee, Kyu-Jong; Kim, Dong-Jin; Ban, Ho-Young; Lee, Byun-Woo;
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 Abstract
An experiment in a controlled environment was conducted to evaluate the genotypic differences of grain yield and yield-related elements of rice under elevated air temperature. Eight rice genotypes included in three maturing group (early, medium, and medium-late maturing group) were grown with 1/5,000 a Wagner pots at four plastic houses that were controlled to the temperature regimes of ambient temperature (AT), , , and throughout the rice growing season in 2011. Ripened grain ratio and 1000 grain weight showed the most susceptible and tolerant responses to elevated air temperature, respectively. The grain yield reduction was attributable to the sharp decrease of ripened grain ratio. Grain yield was significantly decreased above the treatment of and in early maturing group and the others, respectively. Highly correlation to average temperature from heading to 20 days was revealed in yield (r
 Keywords
Rice;Temperature;Yield;Yield component;Fully-filled grain;Fertility;
 Language
Korean
 Cited by
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