The effects of different sources of potassium and calcium on yield and ionic balance of tomatoes under salinity stress in hydroponic cultivation

Most of agricultural lands in Iran are located in arid and semi-arid regions and are considered as saline soils. In order to investigate the interaction of salinity as well as potassium and calcium on the growth and yield of tomato plants, a factorial experiment was perfected in the form of randomized complete blocks, in hydroponic conditions, with three replicates per treatment. Experimental factors include salinity at three levels (0, 20, and 40 mM NaCl), potassium content form chloride, nitrate (0 and 15 mM), and calcium from chloride, and nitrate (with 0 and 10 mM) . The studied growth factors, including plant height, stem diameter, number of leaves, flowers and fruits and leaf chlorophyll decreased Received 28.03.2021/ Revised 26.05.2021/ Accepted 27.06.2021/ Published 22.10.2021 :تفایرد 08 / 01 / 1400 / :حلاصا 05 / 03 / 1400 / :شریذپ 06 / 04 / 1400 / :راشتنا 30 / 07 / 1400 [ D O I: 1 0. 52 54 7/ nb r. 8. 3. 20 6 ] [ D O R : 2 0. 10 01 .1 .2 42 36 33 0. 14 00 .8 .3 .5 .8 ] [ D ow nl oa de d fr om n br .k hu .a c. ir o n 20 21 -1 203 ]