刺角瓜对南方根结线虫的抗性及特征分析

采用温室盆栽人工接种鉴定技术，对刺角瓜（Cucumis metuliferus）‘CM3’品系进行了抗南方根结线虫的鉴定，并且对其根结线虫的发育进行了观察。结果表明，刺角瓜‘CM3’对南方根结线虫具有稳定的抗性，根结数量、大小与对照栽培黄瓜（C. sativus）‘9930’存在显著差异。通过南方根结线虫发育状态观察证实，南方根结线虫在侵染栽培黄瓜21 d 后就能产卵完成其生活史，而侵染刺角瓜后发育缓慢或停止，28 d 也不能完成其生活史，只有少量的能够在42 d 时发育到成虫阶段。试验结果为黄瓜抗根结线虫育种提供了有力依据。

Resistance Identification of Cucumis metuliferus to Meloidogyne incognita and Characteristic Analysis

Using artificial inoculation method in greenhouse，the resistance of horned melon （Cucumis metuliferus）‘CM3’strain against Meloidogyne incognita was evaluated，and the resistance to root-knot nematodes developmental pathology was observed. The results showed that C. metuliferus ‘CM3’had a stable resistance to M. incognita. There were some significant differences on the root knot number，size between C. metuliferus‘CM3’and C. sativus‘9930’. The observation of M. incognita developmental stage revealed that the development of J2 M. incognita was suppressed in C. metuliferus. M. incognita was able to complete their life cycle in C. sativus‘9930’within 21 d，but could not complete their life cycle in C. metuliferus within 28 d，only a small number of nematodes could develop to the adult stage in 42 d. The resistance identification of C. metuliferus to M. incognita provided a useful basis for cucumber breeding.