|Title:||水稻黃萎病抗病性之遺傳研究||Other Titles:||Inheritance of Resistance to Yellow Dwarf Disease in Rice||Authors:||林明華
|Issue Date:||1-Dec-1975||Publisher:||農業試驗所||Journal Volume:||24||Journal Issue:||3-4||Start page/Pages:||1-7||Source:||中華農業研究||Abstract:||
This study was designed to investigate the inheritance of yellow dwarf disease in rice. Two susceptible varieties, Tainung 61 and Tainan 5, were crossed with two resistant varieties, Firooz-(1) and Kabara and the F1’s were seif-polinated and backcrossed to their respective parents. Seedlings of F1, F2, BCPS and BCPR were inoculated with vector insects (Nephotettix nigropictus and N. cincticeps) for 24 hours. In the first experiment, the seedlings of 5-6 cm in height were inoculated by the mass inoculation method. In the second experiment the seedlings of 10-15 cm in height which were about at 2- or 3-leaf stage were inoculated by the individual inoculation method. Five to six weeks after inoculation, the degree of resitance to yellow dwarf disease was investigated and then the upper part of the plants near the land about 5-6 cm were cut out (ratoon). Two to three weeks later, another detail investigation was made on ratoons. It was found that the resistance of Firooz-(1) and Kabara to yellow dwarf disease was controlled by a single dominant gene.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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