Inducing Salinity Tolerance of Rosemary (Rosmarinus officinalis L.) Plants by Chitosan or Zeolite Application

Chitosan, chitosan nanoparticles and modified chitosan biomaterials, a potential tool to combat salinity stress in plants

“…Whereas, when the salt concentration of 2560 mg L − 1 and 6400 mg L − 1 applied along with 0.5 mg L − 1 and/or 0.1 mg L − 1 Cs exhibited the maximum biomass compared to 9600 mg L − 1 salinity level and no Cs treatment (Safikhan et al, 2018). The combined treatment of zeolite-Cs (8 g kg − 1 and 250 mg kg − 1 , respectively) by mixing in soil alleviated the depressing effects of salt stress by increasing plant growth, declined sodium and chloride concentration in both roots and shoots of rosemary plants (Helaly et al, 2018). In summary, the application of different concentrations of Cs under salt or non-stressed conditions improved the overall performance of plants by stimulating the growth effects of various plants.…”

“…Salt stress is a typical abiotic stress that antagonistically influences plant development and improvement. Foliar application of Cs at 250 and 500 mg L − 1 to rosemary plants reduced the chl a and b-during 2nd season, and increased during 1st season under 2922 and 5844 mg L − 1 salinity stress indicating that the application of Cs showed considerable increase in photosynthetic pigment, content, and composition of carotenoids by preventing chlorophyll from oxidation (Helaly et al, 2018). Application of 2 mg L − 1 Cs by foliar method to control and 1461 mg L − 1 NaCl treatments reduced the total chlorophyll content.…”

A review on recent advances in chitosan applications

“…Rosemary plant (Rosmarinus officinalis L) contains some flavonoids and essential oil in addition to that they also contain antimicrobial compounds and are therefore used in the manufacture of many herbal shampoos and for food flavoring. This plant needs long time for cultivation, effects of salinity may be attributable to osmotic and ionic effects as well as oxidative stress the free radicals induced by salinity disrupt normal metabolism through lipids peroxidation, protein denaturation and nucleic acids using of chitosan at 250 mg/l, showed best result under salinity stress condition on its productivity [33]. Maize is considered one of the most important cereal crop cultivated across the world but in many parts of the world the productivity of maize is limited by some environmental factors such as salt condition.…”

Alleviation of Natural Salinity Stress on Seedlings and Growth of Cowpea Plants Using Some Different Protective Treatments تفادي تأثير الإجهاد الملحي الطبيعي علي إنبات ونمو نباتات اللوبيا باستخدام بعض المعالجات المختلفة

“…Chitosan, yeast and silicon have been reviewed as important and successful plant stimulants. Chitosan is widely used in agriculture either in seed germination or foliar spraying as it is environmentally friendly (Zargar et al, 2015) and induces plants to be more resistant against unfavorable conditions, acts as germination accelerator and a growth stimulator and improves the quality and productivity of yield in many crop species (Lizárraga-Paulín et al, 2011 andHelaly et al, 2018). Meanwhile, the promising biostimulant; yeast, considers natural and safe plant growth promoting for various crops due to its natural nutrient elements.…”