|Issue Date:||May-1975||Publisher:||台灣省農業試驗所||Journal Issue:||32||Start page/Pages:||47-53||Source:||臺灣省農業試驗所報告||Abstract:||
大豆莖處理鐘麻、黃麻、大蒜、玉米、花生和蘿葡等農作物殘體（埋在土內7天）抽出液後有利Rhizoctonia solani之侵染，鐘麻莖處理鐘麻和白菜等作物殘體抽出液後有同樣效果。對大豆莖無毒害，且對R. solani之侵染無助之植物殘體有甘蔗，而對鐘麻莖者則有大蒜、王米、甘蔗和綿等。
Phytotoxic effects of extracts from decomposing plant residues of various crops were tested on kenaf seed germination and on infections of Rhizoctonia solani to stems of soybean and kenaf in vitro. It was found that the phytotoxic effects of extracts from plant residues were depending upon the kind of plant and the duration of decomposition concerned. Extracts from fresh plant residues of cabbage (Brassica pekinensis) , broccoli (Brassica oleracea), jute (Corchorus capsularis) , garlic (Allium scorodopraszsn), wheat (Triticum aestivum), sweet potato (Impomota bataras), cotton (Gossypium hirsutum) and soybean (Glycine max) were greatly harmful to kenaf seed germination.
Extracts of kenaf (Hibiscus cannabinus) and cabbage residues after 7 days of decompositionwere highly toxic to kenaf seed, and those of kenaf, radish (Raphanus sativus), cabbage and peanut (Araclzis hvpogaea) residues after 14 days of decomposition also showed high toxic effect.
Soybean stems treated with extracts of kenaf, jute, garlic, corn (Zea nays), peanut and radish residues, which had been buried in soil for 7 days, were greatly beneficial to the infection of R. solani. Kenaf stems treated with extracts of kenaf and cabbage residues showed the same effect. It was, however, also found that extract of sugarcane (Saccharurn of ficinarum) residue and those of garlic, corn, sugarcane and cotton residues showed neither phytotoxic effect nor predisposition to the infection of R. solani to soybean and kenaf, respectively.
|Appears in Collections:||植物病理組|
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