中文摘要 |
在亞熱帶及熱帶地區有許多種類重要作物之繁殖是依靠種子,如糧食作物(水稻、玉米、高梁),產油作物(大豆、向日葵、芝麻),蔬菜(胡蘿蔔、芹菜、洋蔥、甜椒、番茄、茄子、甘藍、花椰菜、瓜類、豆類),飲料作物(可可、咖啡),纖維作物(棉花),及生活非必需性之作物(菸草)。這些類別的作物有許多重要病害是源自於種媒之真菌性、細菌性或濾過性病毒病原,這些病原可以降低種子產量(如Sghacelotheca cruenta,洋蔥黃萎病毒),降低作物產量(如Xanthomonas oryzae,菸草嵌紋病毒),降低作物品質(如Alternaria brassicicola),散佈病害(如Alternaria dauci, Peronosclerospora sorghi, clavibacter, michiganense),降低出土率(如Alfernaria helianthi, Diglodia maydis),荒蕪田地(如Sclerotium epivorum),令植物產生易病化(如Helminthosporium maydis),以及造成貯藏性損失(如Scptoria apiicola, Enwinia carotovora)。 |
英文摘要 |
A diversity of crops are cultivated by sowing seeds in subtropical and tropical regions. They are food crops (rice, maize, sorghum), oil crops (soybean, sunflower, sesame), vegetables (carrot, celery, onion, pepper, tomato, eggplant, cabbage, cauliflower, cucumber, beans), beverage crops (cacao, coffee), fiber crop (cotton) and luxury crop (tobacco). Many important diseases of these crops are mainly caused by either seed-borne fungal, bacterial, or viral pathogen. These seed-borne pathogens are able to reduce the yield of seed (e.g. Sphacelotheca cruenta, onion yellow dwarf virus), reduce the yield (Xanthomonas oryzae, tobacc mosaic virus), reduce the quality of crops (e.g. Alternaria brassicicola), spread the disease (e.g. Alternaria dauci, Peronosclerospora sorghi, Clavibacter michiganense), reduce the emergence (e.g. Alternaria helianthi, Diplodia maydis), fallow the land (e.g. Sclerotium cepivorum), predispose plant to other pathogens (e.g. Botryodiplodia theobromae + Calonectria rigidiuscula), and cause storage loss (e.g. Septaria apiicola, Colletotrichum piperatum, Erwinia carotovora). |