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ASPHC Baner

Vol. 20 No. 4 (2021)

Articles

FOLIAR APPLICATION OF POTASSIUM AND ZINC ENHANCES THE PRODUCTIVITY AND VOLATILE OIL CONTENT OF DAMASK ROSE (Rosa damascena Miller var. trigintipetala Dieck)

DOI: https://doi.org/10.24326/asphc.2021.4.9
Submitted: June 16, 2020
Published: 2021-08-31

Abstract

Potassium (K) levels are decreasing worldwide in agricultural soils, and K deficiency is becoming a major issue. Study on damask rose response to K application is scarce. Furthermore, despite its importance in the cell division, photosynthesis and protein synthesis, there is a lack of published reports on plant responses to zinc (Zn) application. Further research is required to understand the damask rose's response to both elements. This study investigated the effects of K and Zn foliar application on the vegetative growth, flower yield, and volatile oil content and composition of damask rose. K and Zn nutrition was applied either individually or combined as K2SO4 and ZnSO4 at 0.5 or 1.0%. Foliar application of K2SO4 and ZnSO4 was applied with a manual pump four times in each growing season, the first at the beginning of stem elongation and leaf formation, and then at two-weekly intervals. Results showed that K and/or Zn treatments significantly improved the growth characters, flower yield, relative water content (RWC), stomatal conductance, and essential oil content and composition such as linalool, nerol, citronellol, geraniol, and nonadecane. The chlorophyll content, total soluble sugars (TSS), and protein content also increased, but free amino acid content decreased, suggesting that the distribution of nitrogenous compounds (between amino acids and proteins) and their transformation were influenced by K and Zn supply. Individual applications of K or Zn increased the N, P, K, and Zn contents in damask rose leaves, relative to the control, which increased further with combined applications of K and Zn. Results suggest that foliar application of K and/or Zn could be part of the damask rose fertilization program to provide plants with the optimum level of nutrition for improving the quantity and quality of flowers and essential oil yields.

References

  1. Abd El-Baky, M.M.H., Ahmed, A.A., El-Nemr, M.A., Zaki, M.F. (2010). Effect of potassium fertilizer and foliar zinc application on yield and quality of sweet potato. Res. J. Agric. Biol. Sci., 6, 386–394.
  2. Abd El-Wahab, M.A. (2008). Effect of some trace elements on growth, yield and chemical constituents of Trachyspermum ammi L. (AJOWAN) plants under Sinai conditions. Res. J. Agric. Biol. Sci., 4, 717–724.
  3. Abdel-Hameed, El-Sayed S., Bazaid S.A., Hagag, H.A. (2016). Chemical characterization of Rosa damascena Miller var. trigintipetala Dieck essential oil and its in vitro genotoxic and cytotoxic properties. J. Essent. Oil Res., 28, 121–129.
  4. Ahmad, I., Khan, M.A., Qasim, M., Ahmad, R., Randhawa, M.A. (2010). Growth, yield and quality of Rosa hybrida L. as influenced by various micronutrients. Pak. J. Agric. Sci., 47, 5–12.
  5. Akhtar, N., Sarker, M.A.M., Akhter, H., Nadda, M.K. (2009). Effect of planting time and micronutrient as zinc chloride on the growth, yield and oil content of Mentha piperita. Bangladesh J. Sci. Ind. Res., 44, 125–130.
  6. Ali, E.F., Bazaid, S., Hassan, F. (2014). Salinity tolerance of Taif roses by gibberellic acid (GA3). Int. J. Sci. Res., 3, 184–192.
  7. Al-Yasi, H., Attia, H., Alamer, K., Hassan, F., Esmat, F., Elshazly, S., Siddiqued, K.H.M., Hessiniae, K. (2020). Impact of drought on growth, photosynthesis, osmotic adjustment, and cell wall elasticity in Damask rose. Plant Physiol. Biochem., 150, 133–139.
  8. Arough, Y.K., Sharifi, R.S., Sharifi, R.S. (2016). Bio fertilizers and zinc effects on some physiological parameters of triticale under water-limitation condition. J. Plant Interact., 11(1), 167–177. https://doi.org/10.1080/17429145.2016.1262914
  9. Baniasad, A., Khajavirad, A., Hosseini, M., Shafei, M.N., Aminzadah, S., Ghavi, M. (2015). Effect of hydro-alcoholic extract of Rosa damascena on cardiovascular responses in normotensive rat. Avicenna J. Phytomed., 5, 319–324.
  10. Barker, A.V., Pilbeam, D.I. (2007). Handbook of Plant Nutrition. Taylor & Francis, Boca Raton.
  11. Baydar, H., Baydar, N.G. (2005). The effects of harvest date, fermentation duration and Tween 20 treatment on essential oil content and composition of industrial oil rose (Rosa damascena Mill.). Ind. Crops Prod., 21, 251–255.
  12. Baydar, N.G., Baydar, H. (2013). Phenolic compounds, antiradical activity and antioxidant capacity of oil-bearing rose (Rosa damascena Mill.) extracts. Ind. Crops Prod., 41, 375–380.
  13. Benito, B., Haro, R., Amtmann, A., Cuinm, T. A., Dreyer, I. (2014). The twins K+ and Na+ in plants. J. Plant Physiol., 171, 723–731.
  14. Boskabady, M.H., Shafei, M.N., Saberi Z., Amin, S. (2014). Pharmacological effects of Rosa damascena. Iran J. Basic Med. Sci., 14, 295–307.
  15. Bradford, M.M. (1976). A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal. Biochem., 72, 248–254.
  16. Brady, N.C., Ray, R.W. (2002). The nature and properties of soils, 13th ed. Prentice Hall, New Jersey.
  17. British Pharmacopoeia (1963). Determination of Volatile Oil in Drugs. Pharmaceutical Press, London.
  18. Broadley, M.R., White, P.J., Hammond, J.P., Zelko, I., Lux, A. (2007). Zinc in plants. New Phytol., 173, 677–702.
  19. Cakmak, I. (2000). Role of zinc in protecting plant cells from reactive oxygen species. New Phytol., 146, 185–205.
  20. Cakmak, I. (2005). The role of potassium in alleviating detrimental effects of abiotic stresses in plants. J. Plant Nutr. Soil Sci., 168, 521–530.
  21. Causin, H.F. (1996). The central role of amino acids on nitrogen utilization and plant growth. J. Plant Physiol., 149, 358–362.
  22. Danyaie, A., Tabaei-Aghdaei, S.R., Jafari, A.A., Matinizadeh, M., Mousavi, A. (2011). Additive main effect and multiplicative interaction analysis of flower yield in various Rosa damascena Mill. genotypes across 8 environments in Iran. J. Food Agric. Environ., 9, 464–468.
  23. Dimkpa, C., Bindraban, P., Fugice, J., Agyin-Birikorang, S., Singh, U., Hellums, D. (2017). Composite micronutrient nanoparticles and salts decrease drought stress in soybean. Agron. Sustain. Dev., 37, 5.
  24. Dimkpa, C.O., Andrews, J., Fugice, J., Singh, U., Bindraban, P.S., Elmer, W.H., Gardea-Torresdey, J.L.,White, J.C. (2020). Facile coating of urea with low-dose ZnO nanoparticles promotes wheat performance and enhances Zn uptake under drought stress. Front. Plant Sci., 11, 168.
  25. Dimkpa, C.O., Singh, U., Bindraban, P.S., Adisa, I.O., Elmer, W.H., Gardea-Torresdey, J.L., White, J.C., (2019). Addition-omission of zinc, copper, and boron nano and bulk particles demonstrate element and size-specific response of soybean to micronutrients exposure. Sci. Total Environ., 665, 606–616.
  26. Dimkpa, C.O., Singh, U., Bindraban, P.S., Elmer, W.H., Gardea-Torresdey, J.L., White, J.C. (2018). Exposure to weathered and fresh nanoparticle and ionic Zn in soil promotes grain yield and modulates nutrient acquisition in wheat (Triticum aestivum L.). J. Agric. Food Chem., 66, 9645–9656.
  27. Dubois, M., Gilles, K.A., Hamilton, J.K., Roberts, P.A., Smith, F. (1956). Colorimetric method for determination of sugars and related substances. Anal. Chem., 28, 350–356.
  28. Fanaei, H.R., Galavi, M., Kafi, M., Ghanbari, B.A. (2009). Amelioration of water stress by potassium fertilizer in two oilseed species. Int. J. Plant Prod., 3, 41–54.
  29. Finnan, J., Burke, B. (2013). Potassium fertilization of hemp (Cannabis sativa). Ind. Crops Prod., 41, 419–422.
  30. Fuwa, K., Pulido, P., McKay, R., Vallee, B.L. (1964). Determination of zinc in biological materials by atomic absorption spectrometry. Anal. Chem., 36 (13), 2407–2411.
  31. Hansch, R., Mendel, R.R. (2009). Physiological functions of mineral micronutrients (Cu, Zn, Mn, Fe, Ni, Mo, B, Cl). Curr. Opin. Plant Biol., 12, 259–266.
  32. Hassan, F., Ali, E.F. (2018). Exogenous application of polyamines alleviates water stress-induced oxidative stress in Rosa damascena Miller var. trigintipetala Dieck. South Afr. J. Bot., 116, 96–102.
  33. Havlin, J.L., Beaton, J.D., Tisdale, S.L., Nelson, W.L. (1999). Soil fertility and fertilizers. An introduction to nutrient management, 6th ed. Prentice Hall, New Jersey.
  34. Hisamitsu, T.O., Ryuichi, O., Hidenobu, Y. (2001). Effect of zinc concentration in the solution culture on the growth and content of chlorophyll, zinc and nitrogen in corn plants (Zea mays L.). J. Trop. Agric., 36, 58–66.
  35. Hu, W., Yang, J., Meng, Y., Wang, Y., Chen, B., Zhao, W., Oosterhuis, D.M., Zhou, Z. (2015). Potassium application affects carbohydrate metabolism in the leaf subtending the cotton (Gossypium hirsutum L.) boll and its relationship with boll biomass. Field Crops Res., 179, 120–131.
  36. Hu, W., Zhao, W., Yang, J., Oosterhuis, D. M., Loka, D. A., Zhiguo Z. (2016). Relationship between potassium fertilization and nitrogen metabolism in the leaf subtending the cotton (Gossypium hirsutum L.) boll during the boll development stage. Plant Physiol. Biochem., 101, 113–123.
  37. Huang, W., Zhao, X., Liang, N., He, L., Yu, L., Zhan. Y. (2019). Phosphorus deficiency promotes the lateral root growth of Fraxinus mandshurica seedlings. J. Plant Nutr. Soil Sci., 182(4), 552–559
  38. Jabbarzadeh, Z., Khosh-Khui, M. (2005). Factors affecting tissue culture of Damask rose (Rosa damascena Mill.). Sci. Hortic., 105, 475–482.
  39. Kalaji, H.M., Oukarroum, A., Alexandrov, V., Kouzmanova, M., Brestic, M., Zivcak, M., Samborska, I.A., Cetner, M.D., Allakhverdiev, S.I., Goltsev, V. (2014). Identification of nutrient deficiency in maize and tomato plants by in vivo chlorophyll a fluorescence measurements. Plant Physiol. Biochem., 81, 16–25.
  40. Kanai, S., Moghaieb, R.E., El-Shemy, H.A., Panigrahi, R., Mohapatra, P.K., Ito, J., Nguyen, N.T., Saneoka, H., Fujita, K. (2011). Potassium deficiency affects water status and photosynthetic rate of the vegetative sink in green house tomato prior to its effects on source activity. Plant Sci., 180, 368–374.
  41. Khalid, A.K. (2013). Effect of potassium uptake on the composition of essential oil content in Calendula officinalis L. flowers. Emir. J. Food Agric., 25, 189–195.
  42. Khalid, K.A., El-Sherbeny, S.E., Shafei, A.M. (2007). Response of Ruta graveolens L. to rock phosphate and/or feldspar under biological fertilizers. Arab Univ. J. Agric. Sci., 15, 203–213.
  43. Khalifa, R.K.M., Shaaban, S.H.A., Rawia, A. (2011). Effects of foliar application of zinc sulphate and boric acid on growth, yield and chemical constituents of iris plants. Ozean J. Appl. Sci., 4, 129–144.
  44. Khan, H.R., McDonald, G.K., Rengel, Z. (2004). Zinc fertilization and water stress affects plant water relations, stomatal conductance and osmotic adjustment in chickpea (Cicer arientinum L.). Plant Soil, 267, 271–284.
  45. Khan, P., Memon, M.Y., Imtiaz, M., Depar, N., Aslam, M., Memon, M.S., Shah J.A. (2012). Determining the zinc requirements of rice genotype sarshar evolved at NIA Tandojam. Sarh J. Agric., 28, 1–7.
  46. Khetsha, Z.P, Sedibe, M.M. (2015). Effect of potassium and potting-bag size on foliar biomass and related attributes and oil composition of rose geranium (Pelargonium graveolens). South Afr. J. Plant Soil, 32(2), 113–115, https://doi.org/10.1080/02571862.2014.994143
  47. Khoshgoftarmanesh, A.H., Khademi, H., Hosseinin, F., Aghajani, R. (2008). Influence of additional micronutrient supply on growth, nutritional status and flower quality of three rose cultivars in a soilless culture. J. Plant Nutr., 31, 1543–1554.
  48. Krauss, A. (2003). Assessing soil potassium in view of contemporary crop production. In: Regional IPI-LIALUA Workshop on Balanced Fertilization in Contemporary Plant Production, Kaunas-Marijampol, Lithuania, 30 September–1 October 2003.
  49. Kumar, R., Sharma, S., Kaundal, M., Sharma, S., Thakur, M. (2016a). Response of damask rose (Rosa damascena Mill.) to foliar application of magnesium (Mg), copper (Cu) and zinc (Zn) sulphate under western Himalayas. Ind. Crops Prod., 83, 596–602.
  50. Kumar, R., Sharma, S., Kaundal, M., Sood, S., Agnihotri, V.K. (2016b). Variation in essential oil content and composition of damask rose (Rosa damascena Mill) flowers by salt application under mid hills of the western Himalayas. J. Essent. Oil-Bear Plants, 19, 297–306.
  51. Kürkçüoglu, M., Abdel-Megeed A., Başer, K.H.C. (2013). The composition of Taif rose oil. J. Essent. Oil Res., 25, 364–367.
  52. Maathuis, F.J.M., Sanders, D. (1996). Mechanisms of potassium absorption by higher plant roots. Physiol. Plant., 96, 158–168.
  53. Marschner, H. (1995). Functions of mineral nutrients: Macronutrients. In: Mineral nutrition of higher plants, Marschner, H. (ed.), 2nd ed. Academic Press, New York, pp. 299–312.
  54. Massoud, A.M., Abou-Zaid, M.Y., Bakry, M.A. (2005). Response of pea plants grown in silty clay soil to micronutrients and Rhizobium incubation. Egypt. J. Appl. Sci., 20, 329–346.
  55. Mengel, K., Kirkby, E. (1987). Principles of plant nutrition, 4th ed. International Potash Institute, Bern.
  56. Mohamadi, M., Mostafavi, A., Shamspur, T. (2011). Effect of storage on essential oil content and composition of Mill. Rosa damascena petals under different conditions. J. Essent. Oil-Bear. Plants, 14, 430–441.
  57. Mollafilabi, A., Hassan Zadeh, K., Rad, H., Aroiee, R. (2010). Effect of optimizing nitrogen and potassium application in Johnson nutrient solution on essential oil content of peppermint in hydroponics culture. Acta Hortic., 853,157–160.
  58. Mousa, G.T., El-Sallami, I.H., Ali, E.F. (2001). Response of Nigella sativa, L. to foliar application of gibberellic acid, benzyladenine, iron and zinc. Assiut J. Agric. Sci., 32, 141–156.
  59. Nasiri, Y., Najafi, N. (2015). Effects of soil and foliar applications of iron and zinc on flowering and essential oil of chamomile at greenhouse conditions. Acta Agric. Slov., 105, 33–41.
  60. Nasiri, Y., Zehtab-Salmasi, S., Nasrullahzadeh, S., Najafi, N., Ghassemi-Golezani, K. (2010). Effects of foliar application of micronutrients (Fe and Zn) on flower yield and essential oil of chamomile (Matricaria chamomilla L.). J. Med. Plants Res., 4, 1733–1737.
  61. Nelson, D.W., Sommers, L.E. (1973). Determination of total nitrogen in plant material. Agron. J., 65, 109–112.
  62. Omar, M.R., Stanislav, M., Martha, C.H. (2014). Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L. under the dry and warm climate conditions of Colombia. Agron. Colomb., 32, 255–265.
  63. Oosterhuis, D., Loka, D., Kawakami, E., Pettigrew, W. (2014). The physiology of potassium in crop production. Adv. Agron., 126, 203–234.
  64. Pal, P.K. (2013). Evaluation, genetic diversity, recent development of distillation method, challenges and opportunities of Rosa damascene: a review. J. Essent. Oil Bear. Plants, 16, 1–10. doi: 10.1080/0972060X.2013.764176
  65. Pal, P.K., Agnihotri, V.K., Gopichand, Singh, R.D. (2014). Impact of level and timing of pruning on flower yield and secondary metabolites profile of Rosa damascena under western Himalayan region. Ind. Crops Prod., 52, 219–227.
  66. Parker, D.R., Aguilera, J.J., Thomason, D.N. (1992). Zinc-phosphorus interactions in two cultivars of tomato (Lycopersicon esculentum, L.) grown in chelator-buffered nutrient solutions. Plant Soil, 143, 163–177.
  67. Pervez, H., Ashraf, M., Makhdum, M.I. (2004). Influence of potassium nutrition on gas exchange characteristics and water relations in cotton (Gossypium hirsutum L.). Photosynthetica, 42, 251–255.
  68. Pettigrew, W.T. (2003). Relationships between insufficient potassium and crop maturity in cotton. Agron. J., 95, 1323–1329.
  69. Pettigrew, W.T., Gerik, T.J. (2007). Cotton leaf photosynthesis and carbon metabolism. Adv. Agron., 94, 209–236.
  70. Potarzycki, J., Grzebisz, W. (2009). Effect of zinc foliar application on grain yield of maize and its yielding components. Plant Soil Environ., 55, 519–527.
  71. Qu, C., Liu, C., Ze, Y., Gong, X., Hong, M., Wang, L., Hong, F. (2011). Inhibition of nitrogen and photosynthetic carbon assimilation of maize seedlings by exposure to a combination of salt stress and potassium-deficient stress. Biol. Trace Elem. Res., 144, 1159–1174.
  72. Rao, B.R.R., Rajput, D.K. (2011). Response of palmarosa {Cymbopogon martini (Roxb.) Wats. var. motia Burk.} to foliar application of magnesium and micronutrients. Ind. Crops Prod., 33, 277–281.
  73. Reddy, K.R., Zhao, D. (2005). Interactive effects of elevated CO2 and potassium deficiency on photosynthesis, growth, and biomass partitioning of cotton. Field Crops Res., 94, 201–213.
  74. Rogalski, L. (1994). Influence of supplementary foliar spray nutrition with plant protection on yield of winter wheat. Acta Acad. Agric. Tech. Olsten., Agric., 57, 111–118.
  75. Ruan, J., Wu, X., Ye, Y., Hardter, R. (1998). Effect of potassium, magnesium and sulphur applied in different forms of fertilizers on free amino acid content in leaves of tea (Camellia sinensis L). J. Sci. Food Agric., 76, 389–396.
  76. Ruiz, J., Romero, L. (2002). Relationship between potassium fertilization and nitrate assimilation in leaves and fruits of cucumber (Cucumis sativus) plants. Ann. Appl. Biol., 140, 241–245.
  77. Ruiz, R. (2006). Effects of different potassium fertilizers on yield, fruit quality and nutritional status of Fairlane nectarine trees and on soil fertility. Acta Hortic., 721, 185–190.
  78. Sadasivam S., Manickam, A. (1992). Biochemical methods for agriculture sciences. Wiley Eastern, New Delhi, pp. 181–185.
  79. Saeed, A., Amin, N. (2019). Effect of phosphorus and potassium on the production and quality of cut rose cultivars. Sarhad J. Agric., 35(3), 798–805.
  80. Said-Al Ahl, H.A.H., Omer, E.A. (2009). Effect of spraying with zinc and/or iron on growth and chemical composition of coriander (Coriandrum sativum, L.) harvested at three stages of development. J. Med. Food Plants, 1, 30–46.
  81. Salim, B.B.M., Abd El-Gawad, H.G., Abou El-Yazied A. (2014). Effect of foliar spray of different potassium sources on growth, yield and mineral composition of potato (Solanum tuberosum L.). Middle East J. Appl. Sci., 4(4), 1197–1204.
  82. Salisbury, F.B., Ross, C.W. (1992). Plant growth regulators. In: Plant physiology, Salisbury, F.B., Ross, C.W. (eds), 4th ed. Wadsworth Publishing Company, Beverly, pp. 116–135.
  83. Sangakkara, U.R., Frehner, M., Nosberger, J. (2000). Effect of soil moisture and potassium fertilizer on shoot water potential, photosynthesis and partitioning of carbon in mungbean and cowpea. J. Agron. Crop Sci., 185, 201–207.
  84. Sarrwy, S.M.A., El-Sheikh, M.H., Kabeil S., Shamseldin A. (2012). Effect of foliar application of different potassium forms supported by zinc on leaf mineral contents, yield and fruit quality of ‘Balady’ mandrine trees. Middle-East J. Sci. Res., 12, 490–498.
  85. Sawan, Z.M., Hafez, S.A., Basyony, A.E. (2001). Effect of phosphorus fertilization and foliar application of chelated zinc and calcium on seed, protein and oil yields and oil properties of cotton. J. Agric. Sci., 136, 191–198.
  86. Secco, D., Whelan, J., Rouached, H., Lister. R. (2017). Nutrient stress-induced chromatin changes in plants. Curr. Opin. Plant Biol., 39, 1–7.
  87. Shiriyan, M., Rad, A. H.S., Sayfzadeh, S., Biareh, V. (2014). Influence of Fe and Zn foliar application on fruit and grain yield of Savory under different plant densities. Int. J. Plant Environ. Sci., 4, 723–727.
  88. Tan, D., Jin, J., Jiang, L., Huang, S., Liu, Z. (2012). Potassium assessment of grain producing soils in North China. Agric. Ecosyst. Environ., 148, 65–71.
  89. Taran, N., Storozhenko, V., Svietlova, N., Batsmanova, L., Shvartau, V., Kovalenko, M., (2017). Effect of zinc and copper nanoparticles on drought resistance of wheat seedlings. Nanoscale Res. Lett., 12, 60.
  90. Tsialtas, I.T., Shabala, S., Baxevanos, D., Matsi, T. (2016). Effect of potassium fertilization on leaf physiology, fiber yield and quality in cotton (Gossypium hirsutum L.) under irrigated Mediterranean conditions. Field Crops Res., 193, 94–103.
  91. Wang, H., Liu, R.L., Jin, J.Y. (2009). Effects of zinc and soil moisture on photosynthetic rate and chlorophyll fluorescence parameters of maize. Biol. Plant., 53, 191–194.
  92. Wang, N., Hua, H., Egrinya Eneji, A., Li, Z., Duan, L., Tian, X. (2012). Genotypic variations in photosynthetic and physiological adjustment to potassium deficiency in cotton (Gossypium hirsutum). J. Photochem. Photobiol. B, Biol., 110, 1–8.
  93. Waraich, E.A., Ahmad, R., Hur, R.G.M., Ehsanullah, A.A., Mahmood, N. (2011). Response of foliar application of KNO3 on yield, yield components and lint quality of cotton (Gossypium hirsutum L.). Afr. J. Agric. Res., 6, 5457–5463.
  94. Weatherley, P.E. (1950). Studies in the water relations of the cotton plant. I. The field measurements of water deficit in leaves. New Phytol., 49(1), 81–97.
  95. Yadav, D., Singh, S.P., Singh, S. (2014). Effect of foliar application of potassium compounds on yield and quality of ber (Ziziphus mauritiana Lam) cv. Banarasi Karaka. Int. J. Res. Applied Nat. Soc. Sci., 2, 89–92.
  96. Yadegari, M. (2012). Chemical composition, antioxidative and antibacterial activity of the essential oils of wild and cultivated Thymus vulgaris from Iran. Biosci. Biotechnol. Res. Asia, 9, 261–263.
  97. Yadegari, M., Shakerian, A. (2014). Effects of micronutrients foliar application on essential oils of lemon balm (Melissa officinalis L.). Adv. Environ. Biol., 8, 1063–1068.
  98. Yemm, E., Cocking, E., Ricketts, R. (1955). The determination of amino-acids with ninhydrin. Analyst, 80, 209–214.
  99. Younis, A., Riaz, A., Sajid, M., Mushtaq, N., Ahsan, M., Hameed, M., Tariq U., Nadeem M. (2013). Foliar application of macro- and micronutrients on the yield and quality of Rosa hybrida cvs. Cardinal and Whisky Mac. Afr. J. Biotechnol., 12, 702–708.
  100. Yu, Z., Zhang, W., Yu, S. (1996). The effect of potassium nutrition on absorption and distribution of nutrient, yield formation and grain quality in Winter wheat. Acta Agron. Sin., 4, 009 (in Chinese with English summary).
  101. Zhang, L., Gao, M., Li, S., Alva, A.K., Ashraf, M. (2014). Potassium fertilization mitigates the adverse effects of drought on selected Zea mays cultivars. Turk. J. Bot., 38, 713–723.
  102. Zhao, D., Oosterhuis, D.M., Bednarz, C.W. (2001). Influence of potassium deficiency on photosynthesis, chlorophyll content, and chloroplast ultrastructure of cotton plants. Photosynthetica, 39, 103–109.
  103. Zhao, X.H., Du, Q., Zhao, Y., Wang, H.J., Li, Y.J., Wang, X.G., Yu, H.Q. (2016). Effects of different potassium stress on leaf photosynthesis and chlorophyll fluorescence in maize (Zea Mays L.) at seedling stage. Agric. Sci., 7, 44–53.
  104. Zörb, C., Senbayram, M., Peiter, E. (2014). Potassium in agriculture-status and perspectives. J. Plant Physiol., 171, 656–669.

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