在由蔬菜种子传播的病害中,有些病原物是附着在种子外表,有些是侵入到种子内部。选用药剂作种子处理可防治种子外部的病原物,但对侵入到种子内部的病原物防治效果较差。而选用热处理的方法可兼防种子内外的病原物。热处理分为温汤浸种法和干热处理法。 1 温汤浸种法 温汤浸种是先将种子放在15～25℃的低温度水中预浸4～6小时,让种子吸收水分,使种子内外的病原 Among the diseases transmitted by vegetable seeds, some pathogens are attached to the surface of seeds and some invade inside the seeds. Selective use of seeds for seed treatment can prevent the pathogen outside the seed, but the invaded into the seed within the pathogen control effect is poor. The choice of heat treatment methods can prevent pathogens both inside and outside the seeds. Heat treatment is divided into warm soup soaking and dry heat treatment. 1 warm soup Soaking warm soup soaking seed is first placed in 15 ~ 25 ℃ low temperature water pre-soaked 4 to 6 hours, let the seeds absorb moisture, so that the pathogen inside and outside the seed