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Position: Home > Articles > STUDIES ON THE RESISTANCE OF WILD RICES TO BACTERIAL LEAF BLIGHT Journal of Plant Protection 1988 (1) 45-48

野生稻对白叶枯病的抗性研究

作  者:
韩玉梅;赵荣杰
摘  要:
研究表明,野生稻中蕴藏着对稻病高抗广谱的抗源。在20种野生稻的62个系中,Oryza latifolia W14,O.minuta W17和W44,O.offcinalis W46,O.punctata W50对我国白叶枯病的6个菌株均表现高抗;O.nivara W19,O.rufipogon W30和O.sativa f.spontanea W39对白叶枯病强毒株Xo-ha和Xo-57严重感病;这几种野生稻的一些杂种后代对上述2个菌株也高度感病。本文还讨论了对稻瘟病和纹枯病的兼抗性。这些对我国重要稻病的主要菌系具有多抗性的野生稻,是培育水稻多抗新品种的重要抗源。
译  名:
STUDIES ON THE RESISTANCE OF WILD RICES TO BACTERIAL LEAF BLIGHT
作  者:
Han Yumei Zhao Rongjie (Institute of Plant Protection, Chinese Academy of Agricultural Sciences)
摘  要:
Sixty-two lines of 20 species of wild rices for resistance to bacterial leaf blight were tested in a screenhouse. Six strains of Xanthomonas campestris pv. oryzae Xo-1, Xo-3, Xo-4, Xo-p_1, Xo-57 and Xo-ha from China were used as inoculums. The plants of wild rices were inoculated at 80-82 days after seeding by using leaf clipping method. Of 62 lines of 20 species in wild rices, 5 lines of 4 species were resistant to the 6 strains of the pathogen. They were Oryza latifolia line W14, O. minuta lines W17 and W44, O. officinalis line W46 and O. punctata line W50. Among all lines of wild rices, 3 lines of 3 species were highly susceptible to the highly virulent strains Xo-ha and Xo-57. They were O. nivara line W19, O. rufipogon line W30 and O. sativa f. spontanea line W39. Some progenies from hybrids of these susceptible species of wild rice such as O. nivara/O. rufipogon line W22, O. nivara/ O. sativa line W24,O. sativa/ O. rufipogon line W40 and O. rufipogon / O. sativa lines W51 and W52 were also susceptible to above mentioned strains.

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