Responses of Rice Genotypes Carrying Different Dwarf Genes to Fusarium moniliforme and Gibberellic Acid
文献类型: 外文期刊
作者: Liangyong Ma (2); zhijuan Ji ; Jinsong Bao ; Xudong Zhu ; Ximing Li ; Jieyun Zhuang ; Changdeng Yang *; Yingwu Xia *
作者机构:
关键词: bakanae disease;dwarf gene;gibberellic acid;Oryza saliva l.;rice;sd1
期刊名称: Plant Production Science
ISSN: 1343-943X
年卷期: 2008 年 11 卷 1 期
页码:
收录情况: JCR(2021版)
摘要: A total of 32 rice genotypes carrying different dwarf or semi-dwarf genes were inoculated with the fungus Fusarium moniliforme Sheldon or treated with 50 mg l(-1) GA(3) in order to select resources resistant to rice bakanac disease from the dwarf materials. The length of the elongated seedlings was measured, and the percentage of death of the seedlings after transplanting to field was also counted. A significant correlation was found between the length of the seedling treated with GA(3) and disease injury by bakanae fungus. Rice materials carrying dwarf gene such as sd1 were not only sensitivity to GA(3) but also susceptive to rice bakanae disease. Materials carrying dwarf gene d1 were insensitive to GA(3) but susceptive to bakanae. On the other hand, all materials carrying d29, sd6 or sdq(L) genes showed resistance to bakanae. The present study indicated that dwarf and semi-dwarf rice materials might be useful resources for improvement of bakanae resistance in rice breeding programs.
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