棘椒-甘蓝间作对甘蓝根肿病的影响

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中图分类号：S565 文献标识码：A 文章编号：0488-5368（2025）06-0032-06

Abstract：This study investigated the effects of intercropping Brassica oleracea cv. Zhonggan 15'with 25 different pepper（Capsicum annuum）varieties on the incidence of clubroot in cabbage.The results showed that intercropping with pepper varieties significantly promoted cabbage growth.Compared with the monoculture control （CK），average plant height and canopy width increased by6cmand 8cm，respectively，while both the longitudinal and transverse diameters of the leafy head increased by an average of4 cm. Intercropping reduced the average incidence of clubroot by approximately 65% ． Among the tested pepper varieties，TI S ，TL8，TL12，TL17， TL20，TL21，TL23，and TL29 were the most effective in suppressing clubroot，with both incidence and disease index recorded as O. The average head weight of cabbage in the intercropped plots reached 1.67kg ，more than twice that of the control （0.71kg ）. A comprehensive evaluation identified TL18，TL28，TL25，TL29，and TL8 as the top five pepper varieties for intercropping. In conclusion，the pepper-cabbage intercropping system effectively reduces the incidence of clubroot in cabbage，promotes growth，and increases yield.TL8（horn pepper），TL18（thread pepper）and TL28（bell pepper）are especially recommended for disease mitigation and yield improvementin cabbage cultivation.

Key words：Cabbage；Pepper；Intercropping;Clubroot

根肿病是一种由芸臺根肿菌（PlasmodiophorabrassicaeWoronin）侵染引起的世界性土传病害[1＼～2]，主要侵染甘蓝、白菜、油菜等十字花科蔬菜根部。（剩余6613字）