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Effect of dwarfing gene d18-k on cool tolerance at the booting stage of rice under the genetic background of norin-PL8

By: Contributor(s): Material type: TextTextPublication details: Mexico, DF (Mexico) CIMMYT : 2003Description: p. 34-35Subject(s): DDC classification:
  • 631.53 BOO
Summary: In rice, the most susceptible growing stage to cool temperatures is the booting stage, especially the young microspore stage (Satake 1976). The spikelet sterilities induced by cool temperatures at this stage decrease rice production. It is well known that semi dwarf varieties which contain the dwarfing gene from the Taiwanese variety, 'Dee-geo-woo-gen', viz. sd1, are widely cultivated due to their high yield potential (Thomas et al. 1980). Norin-PL8 is an extremely cool tolerant variety, which contains genes for cool tolerance derived from Silewah (Satake and Toriyama 1979; Abe et al. 1989). In this study, cool treatments with and without deep water at the booting stage were performed to examine the effects of dl8-k on the cool tolerance under the genetic background of Norin-PL8.
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library CIMMYT Publications Collection 631.53 BOO (Browse shelf(Opens below)) 1 Available L632399
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In rice, the most susceptible growing stage to cool temperatures is the booting stage, especially the young microspore stage (Satake 1976). The spikelet sterilities induced by cool temperatures at this stage decrease rice production. It is well known that semi dwarf varieties which contain the dwarfing gene from the Taiwanese variety, 'Dee-geo-woo-gen', viz. sd1, are widely cultivated due to their high yield potential (Thomas et al. 1980). Norin-PL8 is an extremely cool tolerant variety, which contains genes for cool tolerance derived from Silewah (Satake and Toriyama 1979; Abe et al. 1989). In this study, cool treatments with and without deep water at the booting stage were performed to examine the effects of dl8-k on the cool tolerance under the genetic background of Norin-PL8.

English

0309|AGRIS 0301|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Publications Collection


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