Effects of arbuscular mycorrhizal fungi (AMF) on growth and photosynthesis in grafted cucumber seedlings

This investigation was carried out to examine the role of Arbuscular mycorrhizal fungi (AMF) [Funneliformis mosseae (Fm) and Glomus intraradicts (Gi)] on growth and photosynthesis in grafted cucumber seedlings.
Jingxin anvil 5 was used as stock and Zhongnong 26 cucumber was used as a scion.
Ordinary cucumber seedlings were used as control.
The effects of different AMF inoculation on growth and photosynthesis of cucumber seedlings were studied by measuring the changes of seedlings growth and photosynthetic parameters of grafted and self-rooted seedlings.
The results showed that AMF inoculum could promote the growth and photosynthesis of grafted and ordinary seedlings. Glomus intraradicts was the dominant strain that promoted the growth and photosynthesis of grafted and ordinary seedlings.
The biomass of grafted and Gi inoculation treatment was 20.2% higher than graft seedlings and was 31.5% higher than ordinary seedlings, which was significantly higher than any other treatments.
The net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO₂ concentration (Ci) and chlorophyll content of grafted and Gi inoculation treatment was 34.2, 22.0, 18.9 and 27% higher than grafted seedlings respectively.
From these results we can suggest that the graft and Glomus intraradicts inoculation combination can be used for cucumber seedling production.

VIII South-Eastern Europe Symposium on Vegetables and Potatoes

C. He, J. Wang, L. Li

cucumber seedlings, graft, AMF inoculation, growth, photosynthesis

https://doi.org/10.17660/ActaHortic.2021.1320.51