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1987年从南京豌豆田中采集到表现花叶症状的病株,编号为P-59。经苋色藜单斑分离后进行鉴定,性状如下。 1.寄主范围 人工摩擦接种6科22种植物,P-59可侵染其中的8种。豌豆(Pisum sativum)接种后表现花叶,有时沿叶脉颜色变深。莴苣(Lactuca sativa)初表现脉明,后呈花叶,叶皱缩或黄化,叶脉变褐,植株矮化。百日菊(Zinnia elegans)表现为花叶。苋色藜(Chenopodium amaranticolar)及昆诺藜(C.quinoa)均为系统感染。苋色藜初出现褪绿点,后发展成枯斑,部分叶脉黄化,叶片畸形。昆诺藜上为密集的褪绿点,植株矮化畸形。千日红(Gorephrena globosa)产生大型不规则坏死斑。胡芦巴(Trigonella,foenumgraecum)及扁豆(Dolichos lablab)为隐症带毒。P-59不侵染豆科中的蚕豆、赤豆、菜
In 1987, we collected the diseased plants expressing mosaic symptoms from Nanjing Pea field and numbered P-59. After the amaranth quinoa monolayer identification, traits as follows. 1. The host range of artificial friction inoculation of 6 families and 22 kinds of plants, P-59 can infect 8 of them. Pea (Pisum sativum) showed mosaic after inoculation, sometimes darkening along the vein. Lettuce (Lactuca sativa) showed the first pulse of the pulse, followed by mosaic, leaf shrinkage or yellow, brown, dwarf veins. Zinnia elegans appears as mosaic. Chenopodium amaranticola and C. quinoa are all systemic infections. Amaranth Triptych appeared at the beginning of chlorotic spots, after the development of dead spots, some veins yellow, leaf deformities. Quinoa on the intensive chlorotic spots, plant dwarf deformities. Gorephrena globosa produces large irregular necrotic spots. Trigonella, foenumgraecum and Dolichos lablab are poisoned by the disease. P-59 does not affect beans in legumes, red beans, vegetables