水稻品種對白葉枯病耐病性試驗（I）

Tolerance of Twelve Rice Varieties against Xanthomonas Campestris pv Oryzae, Bacterial Leaf Blight Pathogen

林金樹(Chin-Shuh Lin)

《臺中區農業改良場研究彙報》 41期 (1993/12) Pp. 43-54

https://doi.org/10.6956/BTDAIS.199312.0043

摘要

選用本省過去及目前推廣水稻品種計12個，分別於民國八十年第一、二期在彰化縣大村及台中縣大里兩地，進行對水稻白葉枯病之耐病性試驗。供試水稻於孕穗末期，即劍葉展開時接種5種不同致病力菌株，觀察其致病情形。試驗結果不同品種對白葉枯病5種菌株感病性最高者，分別為台中在來1號、台中秈10號及台中秈3號，次為高雄141號及高雄選1號。對產量之影響，白葉枯病罹病面積率高及產量減少幅度大者，有台中在來1號、台中秈3號、台中秈10號及高雄選1號；罹病面積率中等，對產量影響較顯著者有台中65號、新竹64號及台農70號；罹病面積率中等而對產量影響較不顯著者則有高雄139號。白葉枯病罹病面積率雖高，但對產量影響少者有高雄141號，顯示該品種對白葉枯病具有耐病性。

關鍵字

水稻 ； 白葉枯病 ； 耐病性

並列摘要

Bacterial leaf blight (BLB) caused by Xanthomonas campestris pv. oryzae decreased yield productivity of rice. Twelve rice varieties were planted at Tatsun Changhua (lower yield productivity area), and Tali, Taichung (higher yield productivity area) in two crop seasons of 1991. At booting stage, the flag leaves of the tested varieties were inoculated with five different Taiwanese isolates of BLB by clipping method. The diseased lesion percentage, yield and yield components were measured in these experiments. Results indicated that rice variety Taichung native 1, Taichung sen 10, and Taichung sen 3 were highly susceptible to BLB, Kaohsiung sel 1 and Kaohsiung 141 as susceptible, and Taichung 65, Hsinchu 64, Tainung 70, and Kaohsiung 139 as less susceptible. There were a significant reduction of their grain yield of the rice varieties above except Kaohsiung 139 and Kaohsiung 141.

並列關鍵字

rice ； bacterial leaf blight ； tolerant resistance