Germination and seedlings response of bermudagrasses under water submersion

Abstract

De Luca et al., 2008) including species choice. Due to climate changes, warm-season species, and especially bermudagrass, are becoming popular in the transition zones of Europe (Macolino et al., 2016). However, only a few studies have investigated the effect of increased rainfall intensity on early-stage growth of warm-season turf species. Heavy or total plant submersion, or waterlogging when plants are not submerged but soil pores are saturated (Bailey-Serres et al., 2012; Striker, 2012). Waterlogging and, to a greater extent, submersion, can cause several visible symptoms on plants, especially when they are prolonged, such as reduced photosynthetic activity, abscission of leaves, chlorosis, lower growth of roots and stems (Batzli and Dawson, 1997). Flooding events can be extremely harmful to plants (Bailey-Serres et al., 2012), a decrease in oxygen diffusion rate (ODR), pH, and soil redox potential, and an accumulation of toxic com-uration (Parent et al., 2008; Voesenek et al., 2006). The oxyof oxygen to plant roots that can restrict seedling emergence (Chesworth, 2008; Neira et al., 2015). Studies by Letey et al. (1966) found that at ODR of 0.15-2 cm-1 roots growth of bermudagrass (Cynodon spp.) drastically reduced, even if

Establishment of warm‐season turfgrasses in a Mediterranean transition zone under simulated waterlogging

“…The high seedling tolerance to waterlogging found in this experiment is in line with the findings of Giolo et al. (2021), who observed, in a greenhouse experiment, signs of suffering only after 6 days of complete submersion. Differences among cultivars for percentage GC observed agree with previous studies that reported differences in the speed of establishment among bermudagrass cultivars (Giolo et al., 2020; Magni et al., 2014; Patton et al., 2008).…”

“…Giolo et al. (2021) compared five cultivars of bermudagrass (Jackpot, La Paloma, Transcontinental, Yukon, and Sunbird) in the laboratory and the greenhouse and observed that seeds and seedlings were tolerant to floating or submerged conditions for up to 6–8 days. In another greenhouse study, Zhang et al.…”

“…In contrast, Hansen et al (2000) found bermudagrass to be intolerant of waterlogging conditions. Giolo et al (2021) compared five cultivars of bermudagrass (Jackpot, La Paloma, Transcontinental, Yukon, and Sunbird) in the laboratory and the greenhouse and observed that seeds and seedlings were tolerant to floating or submerged conditions for up to 6-8 days. In another greenhouse study, Zhang et al (2013) examined the germination and seedling growth of four turf species under waterlogging and found 'Texoka' buffalograss to be less tolerant than 'Stonewall' tall fescue (Festuca arundinacea).…”