Resistance of Grafted Tomato with Guozhen 1 as Stock against Root Knot Nematodes in Field

番茄嫁接砧木果砧一号对根结线虫田间抗性试验（英文）

[Objective] This study aimed to study the resistance of grafted tomato with Guozhen 1 as stock against root knot nematodes. [Method] Tomato seedlings were grafted with Guozhenl （T1） and Solanum torvum （T2） as the rootstock, respectively. Self-rooted tomato seedlings were treated as the control （CK）. The resistance of tomato against root knot nematodes was compared among the three treatments. [Result] Compared with those in the T2 and CK groups, the yield of tomato in the T1 group was increased by 17 436.75 and 31 753.65 kg/hm2 respectively, the plant height was increased by 10.55 and 14.54 cm respectively （P〈0.05）, and the stem diameter was increased by 0.56 and 1.13 cm respectively （P〈0.05）. The disease indexes of root knot nematodiasis in the three treatments were 0.55, 10.42 and 45.31, respectively, and there were significant differences among them （P〈0.05）. [Conclusion] This study will provide a theoretical basis for the control of root knot nematodes in tomato by grafting.

[目的]研究果砧一号嫁接番茄对根结线虫的抗性。[方法]采用果砧一号、托鲁巴姆嫁接番茄幼苗,并与自根苗相对比,探讨三种处理对根结线虫的抗性。[结果]采用果砧一号嫁接的番茄植株,与其它两个处理亩产量平均增长1 162.45和2 116.91 kg;株高比两对照分别增加10.55和14.54 cm,差异显著;茎粗比两对照分别提高0.56和1.13 cm,差异显著;根结线虫病情指数三处理分别为0.55、10.42和45.31,在0.05%水平上差异极显著。[结论]该研究可为番茄嫁接防治根结线虫提供理论依据。