果樹及觀賞植物對Phellinus noxius之抗感病性檢定

Response of fruit trees and ornamental plants to brown root rot disease by artificial inoculation with Phellinus noxius.

安寶貞(P. J. Ann) ； 蔡志濃(J. N. Tsai) ； 王姻婷(I. T. Wang) ； 謝美如(M. L. Hsien)

《植物病理學會刊》 8卷2期 (1999/06) Pp. 61-66

https://doi.org/10.6649/PPB.199906_8(2).0003

摘要

由Phellinus noxius引起之果樹及木本園藝作物褐根病為台灣最重要之根部病害之一。將病原菌培養於麥粒(燕麥：小麥：蒸餾水(W) = 1:1:1) 上一個月，以為接種源，傷痍接種於植物幼苗之主根或莖基部，以檢定台灣101品種(含92 species)園藝作物對褐根病菌之抗感病性。結果顯示，極為感病之植物共有1 3種，包括果樹5種：枇杷、軟枝番荔枝、可可、百香果、破布子。極感病觀賞植物8種：茉莉花、黃槐、黃花夾竹桃、金露花、西洋杜鵑、聖誕紅、櫻花、黃金風鈴木，於接種六個月內全數死亡。抗(耐) 病者有蘋果、蓮霧、圓滑番荔枝、扁櫻桃等7種；而柑橘(酸橘、柳橙、苦柚)、愛文檬果(砧木為在來種)、及黑板樹則對褐根病極為抗(耐) 病，於接種一年內均無發現死亡情形。

關鍵字

褐根病 ； 褐根病菌 ； 果樹 ； 觀賞植物 ； 抗病性檢定

並列摘要

Brown root rot caused by Phellinus noxius is one of the most important root diseases of woody trees in Taiwan. Five isolates of P. noxius, with strong virulence, isolated from different host plants, were grown respectively on a wheat-oat medium at 24C for 1 month. The fungus-colonized medium were then mixed and used as inocula for artificial inoculation on the seedling (or cuttings)of 101 varieties (92 species)of horticultural woody plants. Results showed that loquat (Eriobotrya japonica), sugar apple (Annona squamosa), Cordia dichotoma, passion fruit (Passiflora edulis), coca (Theobroma cacao), Arabian jasmine (Jasminum sambac), glossyshower senna (Cassia bicapsularis), poinsettia (Euphorbia pulcherrima) , creeping sky flower (Duranta repens), Taiwan cherry (Prunus campanulata), Indian azalea (Rhododendronsimsii), yellow oleander (Thevetia peruviana), and Tabebuia chrysantha, were highly susceptible to the pathogen. All of the inoculated seedlings of the 13 species above were killed within 6 months. Whereas mango (Mangifera indica, Irwin/zai lai), citrus (Citrus reticulata (sunki), C. sinensis (liou-cheng), C. grandis (pomelo)), and blackboard tree (Alstonia scholaris)were highly resistant or tolerant. All test seedlings of the four species above were survived one year after inoculation.

並列關鍵字

brown root disease ； Phellinus noxius ； fruit trees ； ornamental woody trees ； resistance