|Title:||水稻抗黃萎病品系之育成||Other Titles:||Breeding for the Resistance to Yellow Dwarf Disease of Rice||Authors:||林明華
|Issue Date:||2-Dec-1980||Publisher:||農業試驗所||Journal Volume:||29||Journal Issue:||4||Start page/Pages:||259-264||Source:||中華農業研究||Abstract:||
Yellow dwarf is one of the major diseases of the second crop rice in Taiwan. In order to develop the disease resistant varieties, two susceptible but high yielding varieties, Tainan 5 and Tainung 61,were used as the female(recurrent) parents, and two resistant but tall varieties, Firooz-(1) and Kabara, were used as the male (donor) parents in this study. Selection for the disease resistance were made using both pedigree and backcross methods. Artificial inoculation of pathogens was made using the vector insects, leaf-hopper.
Five selected lines were found to be highly resistant to yellow dwarf disease after testing three times by artificial inoculation. All of them are from the progenies of Tainung 61 which was used as a recurrent parent. Four resistant lines (YD-15, 22, 28, and 75) carry the resistant gene transferred from Kabara, while the remaining line YD-62 carries the resistant gene transferred from Firooz-(l).
Two of the five resistant lines were selected by pedigree method and the other three by backcross method. Lines selected by pedigree method (YD-62 and 75) were found to have shorter plant height and earlies maturity than those selected by backcross method. All resistant lines were found to be higher in grain yield than that of the check variety (Tainan 5) in the first crop, but lower in the second crop due to the severe damage by brown hopper. Five yellow dwarf resistant lines together with other lines are now under further yield trials.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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