Effect of cucumber mycorrhiza inoculation under low and high root temperature grown on hydroponic conditions

Abstract

Cucumber is a subtropical vegetable sensitive to high and low root temperature. Additionally, mycorrhiza with beneficial effect on plant growth can increase plant tolerance to stress. This experiment was carried out as a factorial design based on CRD to study the effect of mycorrhiza density (0, 1,000 spores and 2,000 spores) on cucumber (Cucumis sativus cv. Super N3) under low (15°C), high (35°C), and optimum (25°C) temperature root zones. The result showed that low and high root zone temperatures decreased shoot and root fresh weight, chlorophyll content, and antioxidant activity compared to optimum temperature, while the phenols of shoot and NR activity increased in low and high temperature, respectively, as compared to optimum temperature. Both mycorrhiza inoculation (1,000 and 2,000 spores) increased shoot and root fresh weight while mycorrhiza with 1,000 spores increased antioxidant activity and phenol content and NR activity had no influence by mycorrhiza symbiosis. Mycorrhiza inoculation increased SPAD value at optimum temperature. FV/FM reduced by mycorrhiza with 2,000 spores at low and high temperature stress. Total phenol content increased at all temperature levels by mycorrhiza inoculation. Mycorrhiza with 1,000 spore increased antioxidant activity of leaves at all root zone temperatures. NR activity increased with both mycorrhiza inoculation at optimum temperature and decreased at high root zone temperatures. In general, our results showed that mycorrhiza symbiosis had a desirable effect on cucumber culture at low and high root zone temperatures.

Arbuscular mycorrhiza in combating abiotic stresses in vegetables: An eco-friendly approach

“…In vegetables, AM inoculation has found to increase the yield by enhanced biomass production ( Haghighi et al, 2015 , Duc et al, 2018 ). AM inoculation also plays a significant role in uptake of higher amount of nutrients, leaf water potential and stomatal conductance ( Khan et al, 2013 ).…”

“…It has also found to raise the enzymatic activity in the plants, activation of antioxidant defense mechanisms and accumulation of protecting molecules so as to reduce cell membrane damages ( Liu et al, 2016 , Caradonia et al, 2019 , Pasbani et al, 2020 ). There are several reporting of increased vegetable yield on inoculation of plants with arbuscular mycorrhiza ( Chen et al, 2013 , Liu et al, 2014 , Haghighi et al, 2015 ). Several studies claim that different vegetables inoculated with AMF grow better than non-AM fungi inoculated vegetation under the cold climatic conditions.…”

Effects of Elevated Water Temperature on Growth of Basil Using Nutrient Film Technique

“…Unlike in this study, when exposed to low or high RZTs, Korean mint (Agastache rugosa L.) exhibited significantly lower fresh and dry root weight due to temperature stress (Lam et al, 2020). In a study with cucumber cultivar Super N3, Haghighi et al (2015) found that 25 C was ideal for increasing dry root weight because lower and higher temperatures caused stress on the plants. Al-Rawahy et al (2019) found that cooled RZTs of 22 and 25 C produced significantly more leaves than the 28 C treatment or the 33 C control in cucumber 'Reema F1', once again stressing the importance of optimal temperature to produce better yield is dependent on crop and cultivar.…”

Monosporic Inoculation of Economically Important Horticultural Species with Native Endomycorrhizae under Greenhouse Conditions

“…AMF improve the absorption and translocation of mineral nutrients thanks to their ability to reach beyond the rhizosphere, which is reflected in the growth and development of the melon plants and other Cucurbitaceae [35]. Nevertheless, the TFW parameter did not show significant differences between treatments.…”