Growth and Post-Harvest Fruit Quality of West Indian Cherry Under Saline Water Irrigation and Potassium Fertilization

Abstract

The study was conducted to evaluate the growth and physicochemical quality of West Indian cherry cv. BRS 366-Jaburu, as a function of saline water irrigation and potassium fertilization. The research was conducted under greenhouse conditions in Campina Grande-PB. The experimental design was randomized blocks in a 2 x 4 factorial arrangement, which consisted of two levels of irrigation water electrical conductivity - ECw (0.8 and 3.8 dS m-1) and four levels of potassium of 50, 75, 100 and 125% of the recommendation, in which the dose of 100% was equivalent to 19.8 g of K2O per plant year-1, with three replicates and one plant per replicate. Water salinity of 3.8 dS m-1 inhibited the absolute and relative growth in diameter of the rootstock and scion of West Indian cherry plants, in the period from 100 to 465 days after transplanting. The interaction between saline levels and potassium doses was significant for hydrogen potential, soluble solids and anthocyanins levels in BRS 366-Jaburu West Indian cherry fruits, with the highest values obtained in plants fertilized with 125, 125 and 50% of the K2O recommendation and under water salinity of 3.8, 3.8 and 0.8 dS m-\ respectively. Increasing doses of K did not attenuate the effects of salt stress on the relative growth in rootstock stem diameter, fruit polar diameter and anthocyanin contents of West Indian cherry. Soluble solid contents in West Indian cherry pulp increased with application of K2O.

Exogenous application of salicylic acid on the mitigation of salt stress in Capsicum annuum L.

“…Considering the importance of using saline water for the expansion of irrigated agriculture and guarantee of food production, it is necessary to take action on strategies that minimize the deleterious effects of this abiotic stress, enabling safe agricultural production in the semi-arid region and promoting socioeconomic and environmental development (LIMA et al, 2020). In this context, research has been conducted using salicylic acid to mitigate the effects of salt stress on common bean (ARAÚJO et al, 2018), watermelon (NÓBREGA et al, 2020), basil (SILVA et al, 2019), soursop (SILVA et al, 2020b) and West Indian cherry (DANTAS et al, 2021).…”

Morphophysiology of soursop under salt stress and H2O2 application in the pre-flowering phase

“…Reduction of SD in plants was also observed by Xavier et al (2022), in a ). The inhibition of plant growth is related to changes in soil water potential caused by excess salts, which restrict water absorption, decreasing turgor pressure and plant cell activity by inhibiting cell expansion and elongation (Lima et al, 2020a;Lima et al, 2020b). H 2 O 2 concentrations showed a quadratic effect on the SD of soursop cv.…”

Post-harvest fruit quality of grafted guava grown under salt stress and salicylic acid application

“…Changes in the post-harvest quality of fruits in plants grown under salt stress conditions occur due to the action of the osmotic effect in the soil solution, reducing the flow of free energy of water and inhibiting the absorption of water and nutrients by plants, as well as photosynthetic capacity (Lima et al, 2020). The results found in the present study differ from those reported by Lima et al (2020), who evaluated the West Indian cherry crop under salt stress conditions with levels of 0.8 and 3.8 dS m -1 and found that the highest anthocyanin content in fruit pulp was found at the highest level of water salinity.…”

“…The highest level of ECw was established based on studies conducted by Bezerra et al (2019) with guava cv. Paluma, while salicylic acid (SA) concentrations used were based on a study conducted by Silva et al (2020) with soursop (Annona muricata L.) crop.…”