一、抗性砧木的情况目前市售番茄抗性砧木,其抗病性如表1。在褐色根腐病病圃中,对上述砧木的抗病性及其生产力进行比较时发现,定植后一个月左右由于嫁接缘故,生育均比自根植株差,但两个月后即比自根植株生长旺盛。自根植株两月后即开始呈现萎凋病症,但抗性砧木的根系只有微少褐变,产量比自根植株增加23—40%。 First, the situation of resistant rootstock Currently commercially available tomato resistant rootstock, its disease resistance in Table 1. In the brown root rot disease nursery garden, comparing the resistance of the rootstock and its productivity, we found that about one month after planting, the growth rate was lower than that of the self-rooted plant due to the grafting reason, but after two months, Strain growth. Wilt disease began to occur two months after the self-rooted plants, but the roots of the resistant rootstocks showed only slight browning, yielding 23-40% more yield than the self-rooted ones.