Increase in irrigation water salinity from 0.8 to 3.8 dS [m.sup.-1] inhibits the absolute and relative growths in stem diameter and mean mass of fruits of West Indian cherry, in the post-grafting stage.
Potassium fertilization mitigates the deleterious effects of salt stress on the relative growth rate of rootstock diameter, total number of fruits and total fresh mass of fruits of West Indian cherry, with highest values in plants irrigated using water of lowest salinity associated with highest dose of [K.sub.2]O.
Water relations and gas exchanges of West Indian cherry under salt stress and nitrogen and phosphorus doses.
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of West Indian cherry. Revista Brasileira de Engenharia Agricola e Ambiental, v.22, p.158-163, 2018.
Absolute growth rate--[AGR.sub.DR] (A) in diameter of grafted West Indian cherry plants irrigated using saline waters --ECw and relative growth rate--[RGR.sub.DR] (B) in diameter of rootstock as a function of the interaction between irrigation water electrical conductivity (ECw) and potassium doses (B) in the period from 30 to 515 days after transplanting
Summary of the F test for the variables: relative water content (RWT), water saturation deficit (WSD), C[O.sub.2] assimilation rate (A), C[O.sub.2] internal concentration (Ci), instantaneous efficiency of carboxylation (EiCi), stomatal conductance (gs), transpiration(E), instantaneous water use efficiency (WiUE), chlorophyll a (Clo a), b (Clo b), carotenoids (carot), % cell damage (EE) in West Indian cherry
plants at 150 days after application of salinity levels.
Irrigation using water with electrical conductivity of 3.8 dS [m.sup.-1] compromises gas exchanges and photochemical efficiency of West Indian cherry
Irrigation using water with electrical conductivity up to 2.2 dS [m.sup.-1] is viable for west indian cherry cultivation; at higher levels, there is a reduction in quantum efficiency of photosystem II and plant growth.
Increment in nitrogen and/or phosphorus doses reduces the negative effects of the saline stress on the quantum efficiency of photosystem II of west indian cherry plants.
Increment of 40% in nitrogen dose increases chlorophyll a fluorescence of west indian cherry plants, but does not influence plant growth.
Initial fluorescence-Fo (A), maximum fluorescence-Fm (B), variable fluorescence-Fv (C) and quantum efficiency of PSII-Fv/Fm (D) of west indian cherry plants irrigated with saline water and fertilized with nitrogen and phosphorus doses
Absolute (AGR--mm [day.sup.-1]) and relative (RGR--mm [mm.sup.-1] [day.sup.-1]) growth rates in diameter of rootstock--DRS from 1 to 150 days (A and B) and number of leaves (C) of west indian cherry plants irrigated with saline water and fertilized with nitrogen and phosphorus at 150 days after applying the salinity levels