Changes in the salinity tolerance of sweet pepper plants as affected by nitrogen form and high CO2 concentration

Two minuses can make a plus: waterlogging and elevated CO2 interactions in sweet cherry (Prunus avium) cultivars

“…García‐Sánchez et al () only found differences in the amount of proline between the leaves of control and flooded citrus trees for one of the tested rootstocks, and Yiu et al () questioned the protective role of proline, as its accumulation was found to be inversely correlated with tolerance to W in Allium fistulosum . In sweet cherry the increasing level of proline coincides with stress processes (Erturk et al , Sivritepe et al ), vanishing at eCO 2 as in other species (Piñero et al ). Notwithstanding, its portrayal as a lipid peroxidation responder was not demonstrated in this experiment because TBARS only augmented in W plants of ‘Burlat’ after the R phase.…”

“…On the one hand, unexpected floods can reduce agricultural yields, by altering development and increasing susceptibility to diseases (Voesenek and Bailey‐Serres ). On the other hand, eCO 2 , one of the causes of climate change, has been proven to ameliorate the effects of different stresses within plants (Taub et al , Wall et al , Hamilton et al , Geissler et al , Vu and Allen , Piñero et al , , Yua et al ). Thus, the study of the stressful events caused by climate change without taking into account the increase in CO 2 can only yield partial knowledge of the near‐future situation.…”

“…Therefore, if we wish to predict the future response of plants to climate change, the study of both phenomena (W and elevated CO 2 ; eCO 2 ) separately would be controversial because these two environmental negatives could make a ‘plus’. Although eCO 2 and other abiotic stressors have been widely studied (Taub et al , Wall et al , Hamilton et al , Geissler et al , Vu and Allen , Piñero et al , , Yua et al ), the combined effect of W and e[CO 2 ] has been scarcely studied (Ershova et al , Shimono et al , Arenque et al , Lawson et al , Pérez‐Jiménez et al ) and, it has recently been studied in fruit trees for the first time (Pérez‐Jiménez et al ) but never on the cultivar response.…”

Fruit quality of sweet pepper as affected by foliar Ca applications to mitigate the supply of saline water under a climate change scenario

“…Pepper ( Capsicum annuum L.) is an important, widespread agricultural crop in the Mediterranean area, not only because of its economic importance but also owing to the nutritional value of its fruits. Pepper fruits are rich in carbohydrates, proteins, vitamins, minerals, and amino acids, which have beneficial effects regarding the prevention of several disease states . However, the scarcity of good‐quality water in the semi‐arid Mediterranean basin encourages the use of low‐quality water (3–6 dS m −1 ) for crop irrigation, and sweet pepper is generally considered to be salt sensitive …”

“…Pepper fruits are rich in carbohydrates, proteins, vitamins, minerals, and amino acids, which have beneficial effects regarding the prevention of several disease states. 8 However, the scarcity of good-quality water in the semi-arid Mediterranean basin encourages the use of low-quality water (3-6 dS m −1 ) for crop irrigation, and sweet pepper is generally considered to be salt sensitive. 8 Because of pepper's economic importance at both the regional and global scale, the impact on the quality of the fruits needs to be better understood, taking into account the effect of global environmental changes on production.…”