Effect of Onion Intercropping Systems and Faba Bean Cultivars for Controlling Root-Knot Nematodes on Faba Bean (Vicia faba L.)

Awad, Mohamed M; Abd-Allah, Ahmed, M. Mohamed; Mohamed, Ismail Abo-Baker  Elsedeak Ismail; Abdel-Baset, Sahar Hassan

doi:10.21608/agro.2025.376999.1668

Effect of Onion Intercropping Systems and Faba Bean Cultivars for Controlling Root-Knot Nematodes on Faba Bean (Vicia faba L.)

Document Type : Original Article

Authors

¹ Crop Intensification Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt

² Crop Intensification Research Department, Field Crops Res. Inst., Agric. Res. Center, Giza, Egypt

³ Food Legumes Research Department, Field Crops Res. Inst., Agric. Res. Center, Giza, Egypt

⁴ Department of Nematode Diseases Research, Plant Pathol. Res. Inst., Agric. Res. Center, Giza, Egypt

10.21608/agro.2025.376999.1668

Abstract

This study was conducted during 2022/2023 and 2023/2024seasons at the Ismailia Experimental Research Station, Agricultural Research Center, Egypt to investigate the impact of intercropping patterns [two (IP1), three (IP2), and four rows (IP3) of onion intercropped] and cultivars of faba bean [Giza 843, Giza 716, and Sakha4] on root-knot nematode, Meloidogyne spp., management, yield of both crops, land equivalent ratio (LER), and farmer's income. The pots experiment under greenhouse conditions that inoculated with M. incognita showed that Giza 716 had the highest levels of total phenol content and enzyme activities of peroxidase, polyphenol oxidase, and phenylalanine. In the field, IP3 with Giza 716 significantly reduced numbers of galls, egg masses/root system, second-stage juveniles (j2s) in soil, gall index (GI), and egg mass index (EI) compared to control. Intercropping pattern IP3 increased yield and yield components / fed of faba bean, as well as onion yield / fed. Giza 716 had the highest values of yield and yield components. On the other hand, intercropped onion with Giza 843, produced the highest onion yield / fed. For interaction, IP3 with Giza 716 produced the highest values of yield and its components of faba bean. While the highest onion yield/fed obtained by IP3 with Giza 843. The highest values of LER (1.53 and 1.50), total and net return fed-1 were produced by IP3 with Giza 716. Therefore, we can recommend intercropping four rows of onion with faba bean Giza 716 to reduce E.I of nematodes and increase yield by and gain pro-economic benefits.

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