The phrase "alkali stress" is correct and usable in written English.
It can be used in contexts related to chemistry, environmental science, or agriculture, particularly when discussing the effects of alkaline conditions on plants or materials.
Example: "The researchers observed that the plants exhibited signs of alkali stress, leading to reduced growth and vitality."
Alternatives: "alkaline stress" or "alkali-induced stress".
To explain the physiological responses of apple plants to alkali stress (non-stressed control, pH 6.0 ± 0.1, versus alkali stress treatment, pH 9.0 ± 0.1), we used hydroponics culturing to study the performance of two rootstocks with contrasting degrees of alkali tolerance.
After 15 days of alkali stress treatment, the root architecture of M. rockii was also more seriously influenced by alkali stress compared with M. prunifolia.
However, there were significant differences in the contents of ABA and IAA in the roots between two apple rootstocks seedlings under alkali stress.
Plant responses to mixed salt and alkali stress are more complex than their responses to either simple salt or alkali stress (Shi and Sheng [2005]; Yang et al. [2007]) and there have been few studies of complex neutral and alkaline salt stress.
Metabolite responses to salt stress and alkali stress differ.
This result implied that salt stress and alkali stress were two distinct stress conditions; the resistance of wheat to salt stress was stronger than that to alkali stress.
A dynamic trajectory was observed in wheat metabolic profiles in response to salt and alkali stress.
Under alkali stress, Ca sharply increased in roots, however, it decreased under salt stress.
SO42− content was not affected by salt and alkali stress (Fig. 2l, p < 0.05).
The photosynthetic indices of plants exposed to salt and alkali stress were lower than those of the control plants; however, these parameters decreased sharply under alkali stress (Figs. 1c– f, p < 0.05).
Alkali stress significantly affected the TCA cycle; citric acid, aconitic acid, α-ketoglutaric acid, succinic acid, and fumaric acid were significantly increased, indicating that energy production in the TCA cycle was enhanced by alkali stress.
