- Abdalla, M.M., 2011. Beneficial effects of diatomite on the growth, the biochemical contents and polymorphic DNA in Lupinus albus plants grown under water stress. Agriculture andBiology Journal of North American, 2: 207-220.
- Ahmad, A., Selim, M.M., Alderfasi, A.A. and Afzal, M., 2015. Effect of drought stress on mung bean (Vigna radiata L.) under arid climatic conditions of Saudi Arabia. Ecosystem and Sustainable Development X, 192: 185-193.
- Ahmed, H.H.A., Aboul-Ella Nesiem, M.R., Allam, H.A. and El-Wakil, A.F., 2016. Effect of pre-harvest chitosan foliar application on growth, yield and chemical composition of Washington navel orange trees grown in two different regions. African Journal of Biochemistry Research, 10(7): 59-69.
- Ali, E.F., El-Shehawi, A.M., Ibrahim, O.H.M., Abdul-Hafeez, E.Y., Moussa, M.M. and Hassan, F.A.S., 2021. A vital role of chitosan nanoparticles in improvisation the drought stress tolerance in Catharanthus roseus (L.) through biochemical and gene expression modulation. Plant Physiology and Biochemistry. 16(161): 166-175.
- Amiri, A., Parsa, S.R., Nezami, M. and Ganjeali, A., 2011. The effects of drought stress at different phenological stages on growth indices of chickpea (Cicer arietinum L.) in greenhouse conditions. Iranian Journal of Pulses Research. 1: 69-84.
- Arpanahi, A.A., Feizian, M., Mehdipourian, G.H. and Khojasteh, D.N., 2020. Arbuscular mycorrhizal fungi inoculation improve essential oil and physiological parameters and nutritional values of Thymus daenensis Celak and Thymus vulgaris L. under normal and drought stress conditions. European Journal of Soil Biology, 100: 103217.
- Arriola, O.C., Rocha, M.O.C., Hernandez, A.B., Brauer, J.M.E. and Jatomea, M.P., 2013. Controlled release matrices and micro/nanoparticles of chitosan with antimicrobial potential: development of new strategies for microbial control in agriculture. Journal of the Science of Food and Agriculture, 93(7): 1525-1536.
- Askary, M., Behdani, M.A., Parsa, S., Mahmoodi, S. and Jamialahmadi, M., 2018. Water stress and manure application affect the quantity and quality of essential oil of Thymus daenensis and Thymus vulgaris. Industrial Crops and Products, 111:
336-344.
- Bates, L.S., Waldren, S.P. and Teare, I.D., 1973. Rapid determination of free proline for water stress studies. Plant soil, 39: 205-207.
- Bhuiyan, T.F., Ahamed, K.U., Nahar, K., Al-Mahmud, J., Bhuyan, M.B., Anee, T.I., Fujita, M. and Hasanuzzaman, M., 2019. Mitigation of PEG-induced drought stress in rapeseed (Brassica rapa L.) by exogenous application of osmolytes. Biocatalysis and Agricultural Biotechnology, 20: 101197.
- Bradford, M.M., 1976. A rapid sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein dye binding. Analytical Biochemistry, 72(1-2): 248-254.
- Caser, M., Chitarra, W., D'Angiolillo, F., Perrone, I., Demasi, S., Lovisolo, C. and Scariot, V., 2018. Drought stress adaptation modulates plant secondary metabolite production in Salvia dolomitica Codd. Industrial Crops and Products, 129: 85-96.
- Casiglia, S., Bruno, M., Scandolera, E., Senatore, F. and Senatore, F., 2015. Influence of harvesting time on composition of the essential oil of Thymus capitatus (L.) Hoffmanns. & Link. growing wild in northern Sicily and its activity on microorganisms affecting historical art crafts. Arabian Journal of Chemistry, 12(8): 2704-2712.
- Choudhary, R.C., Kumaraswamy, R.V., Kumari, S., Sharma, S.S., Pal, A., Raliya, R., Biswas, P. and Saharan, V., 2017. Cu-chitosan nanoparticle boost defense responses and plant growth in maize
(Zea mays L.). Scientific Reports, 7: 9754.
- Dhindsa, R.S. and Motowe, W., 1981. Drought tolerance in two mosses, correlation with enzymatic defense against lipid peroxidation. Experimental Botany, 32: 79-91.
- Elansary, H.O., 2017. Green roof Petunia, Ageratum, and Mentha responses to water stress, seaweeds, and trinexapac-ethyl treatments. Acta Physiologiae Plantarum, 39: 145.
- Elansary, H.O., Abdel-Hamid, A.M.E., Yessoufou, K., Al-Mana, F.A., El-Ansary, D.O., Mahmoud, E.A. and Al-Yafrasi, M.A., 2020. Physiological and molecular characterization of water-stressed Chrysanthemum under robinin and chitosan treatment. Acta Physiologiae Plantarum, 42: 31.
- Emami Bistgani, Z., Siadat, S.A., Bakhshandeh, A., Ghasemi Pirbalouti, A. and Hashemi, M., 2017a. Interactive effects of drought stress and chitosan application on physiological characteristics and essential oil yield of Thymus daenensis Celak. The Crop Journal, 5(5): 407-415.
- Emami Bistgani, Z., Siada, S.A., Bakhshandeh, A., Ghasemi Pirbalout, A. and Hashemi, M., 2017b. Morpho physiological and phytochemical traits of (Thymus daenensis Celak.) in response to deficit irrigation and chitosan application. Acta Physiologiae Plantarum, 39: 231.
- Farouk, S. and Al-Sanoussi, A.J., 2019. The role of biostimulants in increasing barley plant growth and yield under newly cultivated sany soil. Cercetari Agronomice in Moldavia (Agronomical Research in Moldavia), 2(178): 114-125.
- Gao, S., Wang, Y., Yu, S., Huang, Y., Liu, H., Chen, W. and He, X., 2020. Effects of drought stress on growth, physiology and secondary metabolites of two Adonis species in Northeast China. Scientia Horticulturae, 259: 108795.
- Garcia-Caparros, P., Romero, M.J., Llanderal, A., Cermeno, P., Lao, M.T. and Segura, M.L., 2019. Effects of drought stress on biomass, essential oil content, nutritional parameters, and costs of production in six Lamiaceae species. Water, 11(3): 573.
- Giannopolitis, C.N. and Ries, S.K., 1977. Superoxide dismutase. I. Occurrence in higher plants. Plant Physiology, 59: 309-314.
- Gill, S.S. and Tuteja, N., 2010. Reactive oxygen species and antioxidant machinery in abiotic stress tolerance in crop plants. Plant Physiology and Biochemistry. 48: 909-930.
- González-Chavira, M.M., Herrera-Hernndez, M.G., Guzmán-Maldonado, H. and Pons-Hernández, J.L., 2018. Controlled water deficit as abiotic stress factor for enhancing the phytochemical content and adding-value of crops. Scientia Horticulturae, 234: 354-360.
- Hadwiger, L.A., 2015. Anatomy of a nonhost disease resistance response of pea to Fusarium solani: PR gene elicitation via DNase, chitosan and chromatin alterations. Frontiers in Plant Science,6: 373.
- Hafez, Y., Attia, K., Alamery, S., Ghazy, A., Al-Doss, A., Ibrahim, E., Rashwan, E., El-Maghraby, L., Awad, A. and Abdelaal, K., 2020. Beneficial effects of biochar and chitosan on antioxidative capacity, osmolytes accumulation, and anatomical characters of water-stressed barley plants. Agronomy, 10(5): 630.
- Hassan, N., Ebeed, H. and Aljaarany, A., 2020. Exogenous application of spermine and putrescine mitigate adversities of drought stress in wheat by protecting membranes and chloroplast ultra-structure. Physiology and Molecular Biology of Plants, 26: 233-245.
- Hassanzadeh, K., Hemmati, Kh. and Alizadeh, M., 2016. Effect of organic fertilizers and salicylicacid on the yield and some secondary metabolites of lemon balm (Melissa officinalis L.). Journal of Plant Production Research, 23(1): 107-130.
- He, M., He, C.Q. and Ding, N.Z., 2018. Abiotic stresses: General defenses of land plants and chances for engineering multistress tolerance. Frontiers in Plant Science, 9: 1771.
- Hidangmayum, A., Dwivedi, P., Katiyar, D. and Hemantaranjan, A., 2019. Application of chitosan on plant responses with special reference to abiotic stress. Physiology and Molecular Biology of Plants, 25: 313-326.
- Jubany-Mari, T., Munne-Bosch, S. and Alegre, L., 2010. Redox regulation of water stress responses in field-grown plants. Role of hydrogen peroxide and ascorbate. Plant Physiology and Biochemistry, 48(5): 351-358.
- Khan, W., Prithiviraj, B. and Smith, D.L., 2003. Chitosan and chitinoligomers increase phenylalanine ammonia-lyaseand tyrosine ammonia-lyase activities in soybean leaves. Journal of Plant Physiology, 160: 859-863.
- Liang, X., Zhang, L., Natarajan, S.K. and Becker, D.F., 2013. Proline mechanisms of stress survival. Antioxidants and Redox Signaling, 19: 998-1011.
- Malekpoor, F., Pirbalouti, A.G. and Salimi, A., 2016. Effect of foliar application of chitosan on morphological and physiological characteristics of basil underreduced irrigation. Research Crop, 17(2): 354-359.
- Malerba, M. and Cerana, R., 2019. Chitosan effects on plant systems. International Journal of Molecular Sciences, 17: 996.
- Malerba, M. and Cerana, R., 2018. Recent applications of chitin-and chitosan-based polymers in plants. Polymers, 11: 839-847.
- Mandoulakani, B.A., Eyvazpour, E. and Ghadimzadeh, M., 2017. The effect of drought stress on the expression of key genes involved in the biosynthesis of phenylpropanoids and essential oil components in basil (Ocimum basilicum L.). Phytochemistry, 139: 1-7.
- Mehla, N., Sindhi, V., Josula, D., Bisht, P. and Wani, S.H., 2017. An introduction to antioxidants and their roles in plant stress tolerance: 1-23. In: Khan, M.I.R. and Khan, N.A., (Eds.). Reactive Oxygen Species and Antioxidant Systems in Plants: Role and Regulation under Abiotic Stress. Springer Singapore, 329p.
- Mohammadi, H., Ghorbanpour, M. and Brestic, M., 2018. Exogenous putrescine changes redox regulations and essential oil constituents in field-grown Thymus vulgaris L. under well-watered and drought stress conditions. Industrial Crops and Products, 122: 119-132.
- Mohammadi, H., Nikjoyan, J.M., Hazrati, S. and Hashempour, H., 2020. Improvement of yield and phytochemical compounds of Thymus vulgaris through foliar application of salicylic acid under water stress. Agriculture and Forestry, 66(1): 129-142.
- Muchate, N.S., Nikalje, G.C., Rajurkar, N.S., Suprasanna, P. and Nikam, T.D., 2016. Plant salt stress: adaptive responses, tolerance mechanism and bioengineering for salt tolerance. The Botanical Review, 82(4): 371-406.
- Ninou, E., Paschalidis, K. and Mylonas, I., 2017. Essential oil responses to water stress in Greek oregano populations. Journal of Essential Oil Bearing Plants, 20: 12-23.
- Pandey, S., Fartyal, D., Agarwal, A., Shukla, T., James, D., Kaul, T., Negi, Y.K., Arora, S. and Reddy, M.K., 2017. Abiotic stress tolerance in plants: Myriad roles of ascorbate peroxidase. Frontiers Plant Science, 8(581): 1-13.
- Pavela, R., Zabka, M., Vrchotová, N. and Triska, J., 2018. Effect of foliar nutrition on the essential oil yield of thyme (Thymus vulgaris L.). Industrial Crops and Products, 112: 762-765.
- Polle, A., Otter, T. and Seifert, F., 1994. Apoplastic peroxidases and lignification in needles of Norway spruce (Picea abies L.). Plant Physiology, 106(1): 53-60.
- Rabelo, V.M., Magalhaes, P.C., Bressanin, L.A., Carvalho, D.T., Oliveira, C., Karam, D., Doriguetto, A.C., Henrique, M., Rodrigues, P. and Souza, T.C., 2019. The foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield. Scientific Report, 9(8164): 1-13.
- Rezaei Chiyaneh, E. and Pirzad, A., 2013. Effect of salicylic acid on yield, yield component and essential oil of black cumin (Nigella sativa L.) under water deficit stress. Iranian Journal of Field Crops Research, 12(3): 427-437.
- Sharma, P., Jha, A.B., Dubey, R.S. and Pessarakli, M., 2013. Reactive oxygen species, oxidative damage, and antioxidative defense mechanism in plants under stressful conditions. Journal of Botany, 2012(e217037): 1-26.
- Shehzad, M.A., Nawaz, F., Ahmad, A., Ahmad, N. and Masood, S., 2020. Protective effect of potassium and chitosan supply on growth, physiological processes and antioxidative machinery in sunflower (Helianthus annuus L.) under drought stress.Ecotoxicology and Environmental Safety, 187: 109841.
- Shukla, N., Awasthi, R.P., Rawat, L. and Kumar, J., 2012. Biochemical and physiological responses of rice (Oryza sativa L.) as influenced by Trichoderma harzianum under drought stress. Plant Physiology and Biochemistry, 54: 78-88.
- Singh, A., Jha S.K., Bagri, J. and Pandey, G.K., 2015. ABA inducible rice protein phosphatase 2C confers ABA insensitivity and abiotic stress tolerance in Arabidopsis. PLoS One, 10(4): e0125168.
- Verma, K.K., Singh, M., Gupta, R.K. and Verma, C.L., 2014. Photosynthetic gas exchange, chlorophyll fluorescence, antioxidant enzymes and growth responses of Jatropha curcas during soil flooding. Turkish Journal of Botany, 38(1): 130-140.
- Yoshimura, K., Yabute, Y., Ishikawa, T. and Shigeoka, S., 2000. Expression of spinach ascorbate peroxidase isoenzymes in response to oxidative stresses. Plant Physiology, 123: 223-233.
- Zhang, C., Shi, S., Wang, B. and Zhao, J., 2018a. Physiological and biochemical changes in different drought-tolerant alfalfa (Medicago sativa L.) varieties under PEG-induced drought stress. Acta Physiologiae Plantarum, 40(2): 25.
- Zhang, J., Jiang, H., Song, X., Jin, J. and Zhang, X., 2018b. The responses of plant leaf CO2/ H2O exchange and water use efficiency to drought: a meta-analysis. Sustainability, 10(551): 1-13.