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Direct and residual effects of plant nutrition’s and plant growth retardants, on cottonseed

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DOI: 10.4236/as.2013.412A007    4,416 Downloads   7,221 Views   Citations


Seed quality is one of the most important factors for stand establishment in cotton (Gossypium Sp.), and the use of good-quality seeds is therefore essential to obtain an optimum plant population. Conditions prevailing during seed formation can affect the quality of seed produced, and hence crop establishment in the next growing season. These conditions can affect the germination of the seeds and the ability of the seedlings to emerge from soil. Field experiments were conducted to investigate the effect of nitrogen (N), phosphorus (P), potassium (K), foliar application of zinc (Zn) and calcium (Ca), and the use of plant growth retardants (PGR) [e.g., 1, 1-dimethyl piperidinium chloride (MC); 2-chloroethyl trimethyl ammonium chloride (CC); or succinic acid 2, 2-dimethyl hydrazide (SADH)], during square initiation and boll setting stage, on growth, seed yield, seed viability, and seedling vigor of Egyptian cotton (G. barbadense). Dry matter yield, total chlorophyll concentration, K, Zn and P-uptake plant-1, were increased with the addition of K, foliar application of Zn, and different concentrations of P (576-1728 g·ha-1 of P). Seed yield plant-1 and plot-1, seed weight, seed viability, seedling vigor, and cool germination test performance increased as a result of the addition of the high N-rate (142.8 kg·ha-1 N), the high P-rate (74 kg·ha-1 P2O5), K (47 kg·ha-1 K), and from application of Zn, and Ca and the PGR. From the findings of the present study, band application of such treatments showed improved cotton-seed yield and affected the quality of seed produced, and hence crop establishment in the next growing season.

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The authors declare no conflicts of interest.

Cite this paper

Sawan, Z. (2013) Direct and residual effects of plant nutrition’s and plant growth retardants, on cottonseed. Agricultural Sciences, 4, 66-88. doi: 10.4236/as.2013.412A007.


[1] Albuquerque, M.C. de F. e and De Carvalho, N.M. (2003) Effect of the type of environmental stress on the emergence of sunflower (Helianthus annuus L.), soybean (Glycine max (L.) Merril) and maize (Zea mays L.) seeds with different levels of vigor. Seed Science and Technology, 31, 465-479.
[2] Welch, R.M. and Shuman, L. (1995) Micronutrient nutrition of plants. CRC Critical Reviews in Plant Science, 14, 49-82.
[3] Fenner, M. (1992) Environmental influences on seed size and composition. Horticultural Reviews, 13, 183-213.
[4] Borowski, E. (2001) The effect of nitrogenous compounds on the growth, photosynthesis and phosphorus uptake of sunflowers. Annales Universitatis Mariae Curie-Sklodowska. Sectio EEE, Horticultura, 9, 23-31.
[5] Reddy, A.R., Reddy, K.R., Padjung, R. and Hodges, H.F. (1996) Nitrogen nutrition and photosynthesis in leaves of Pima cotton. Journal of Plant Nutrition, 19, 755-770.
[6] Rinehardt, J.M., Edmisten, K.L., Wells, R. and Faircloth, J.C. (2004) Response of ultra-narrow and conventional spaced cotton to variable nitrogen rates. Journal of Plant Nutrition, 27, 743-755.
[7] McConnell, J.S., Baker, W.H. and Frizzell, B.S. (1996) Distribution of residual nitrate-N in longterm fertilization studies of an alfisol cropped for cotton. Journal of Environmental Quality, 25, 1389-1394.
[8] Silvertooth, J.C. and Norton, E.R. (1998) Evaluation of a feedback approach to nitrogen and Pix application. A College of Agriculture Report. Series P-112, University of Arizona, Tucson, 469-475.
[9] Bronson, K.F., Onken, A.B., Keeling, J.W., Booker, J.D. and Torbert, H.A. (2001) Nitrogen response in cotton as affected by tillage system and irrigation level. Soil Science Society of America Journal, 65, 1153-1163.
[10] Hearn, A.B. (1981) Cotton nutrition. Field Crop Abstacts, 34, 11-34.
[11] Russell, E.W. (1973) Soil condition and plant growth. The English Language Book Society and Longman, London, 448.
[12] Bisson, P., Cretenet, M. and Jallas, E. (1994) Nitrogen, phosphorus and potassium availability in the soil-physicology of the assimilation and use of these nutrients by the plant. In: Constable, G.A. and Forrester, N.W., Eds., Challenging the Future: Proceedings of the World Cotton Research Conference-1, Brisbane, 14-17 February 1994, CSIRO, Melbourne, 115-124.
[13] Rodriguez, D., Zubillaga, M.M., Ploschuck, E., Keltjens, W., Goudriaan, J. and Lavado, R. (1998) Leaf area expansion and assimilate prediction in sunflower growing under low phosphorus conditions. Plant and Soil, 202, 133-147.
[14] Sasthri, G., Thiagarajan, C.P., Srimathi, P., Malarkodi, K. and Venkatasalam, E.P. (2001) Foliar application of nutrient on the seed yield and quality characters of nonaged and aged seeds of cotton cv. MCU5. Madras Agricultural Journal, 87, 202-206.
[15] Sangakkara, U.R., Frehner, M. and Nösberger, J. (2000) Effect of soil moisture and potassium fertilizer on shoot water potential, photosynthesis and partitioning of carbon in mungbean and cowpea. Journal of Agronomy and Crop Science, 185, 201-207.
[16] Glass, A.D.M. (1989) Plant nutrition. An introduction to current concepts. Jones and Bartlett Publishers, Boston/ Portola Valley.
[17] Colomb, B., Bouniols, A. and Delpech, C. (1995) Effect of various phosphorus availabilities on radiation-use efficiency in sunflower biomass until anthesis. Journal of Plant Nutrition, 18, 1649-1658.
[18] Pettigrew, W.T. (1999) Potassium deficiency increases specific leaf weights of leaf glucose levels in field-grown cotton. Agronomy Journal, 91, 962-968.
[19] Rensing, L. and Cornelius, G. (1980) Biological membranes as components of oscillating systems. Biologische Rundschau, 18, 197-209.
[20] De la Fuente, R.K. and Leopold, A.C. (1973) A role for calcium in auxin transport. Plant Physiology, 51, 845-847.
[21] Addicott, F.T. and Lyon, J.L. (1973) Physiological ecology of abscission. In: Kozlowski, T.T., Ed., Shedding of Plant Parts, Academic Press, New York and London, 85-123.
[22] Ma, L.G. and Sun, D.Y. (1997) The involvement of calcium in the light signal transduction chain for phototropism in sunflower seedling. Biologia Plantarum, 39, 569-574.
[23] Sharma, C.P., Sharma, P.N., Bisht, S.S. and Nautiyal, B.D. (1982) Zinc deficiency induced changes in cabbage. In: Scaife, A., Ed., Proceeding of the 9th Plant Nutrition Colloquy, Commonwealth Agricultural Bureaux, Farnham House, Slough, 601-606.
[24] Sharma, P.N., Chatterjee, C., Agarwala, S.C. and Sharma, C.P. (1990) Zinc deficiency and pollen fertility in maize (Zea mays). Plant and Soil, 124, 221-225.
[25] Oosterhuis, D., Hake, K. and Burmester, C. (1991) Leaf feeding insects and mites. Cotton Physiology Today, 2, 1-7.
[26] Cothren, J.T. (1994) Use of growth regulators in cotton production. Challenging the future. In: Constable, G.A. and Forrester, N.W., Eds., Proceedings of the World Cotton Research Conference-1, CSIRO, Melbourne, 6-24.
[27] Zhao, D.L. and Oosterhuis, D.M. (2000) Pix Plus and mepiquat chloride effects on physiology, growth, and yield of field-grown cotton. Journal of Plant Growth Regulation, 19, 415-422.
[28] von Heyendorff-Scheel, R.C., Schott, P.E. and Rittig F.R. (1983) Mepiquat chloride, a plant growth regulator for cotton. Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz, 90, 585-590.
[29] Stuart, B.L., Isbell, V.R., Wendt, C.W. and Abernathy, J.R. (1984) Modification of cotton water relations and growth with mepiquat chloride. Agronomy Journal, 76, 651-655.
[30] Sawan, Z.M., Fahmy, A.H. and Yousef, S.E. (2011) Effect of potassium, zinc and phosphorus on seed yield, seed viability and seedling vigor of cotton (Gossypium barbadense L.). Archives of Agronomy and Soil Science, 57, 75-90.
[31] Kilmer, V.J. and Alexander, L.T. (1949) Methods of making mechanical analysis of soils. Soil Science, 68, 15-24.
[32] Chapman, H.D. and Pratt, P.F. (1961) Methods of analysis for soils, plants and waters. University of California, Los Angeles, 60-61, 150-179.
[33] Sawan, Z.M., Fahmy, A.H. and Yousef, S.E. (2009) Direct and residual effects of nitrogen fertilization, foliar application of potassium and plant growth retardant on Egyptian cotton growth, seed yield, seed viability and seedling vigor. Acta Ecologica Sinica, 29, 116-123.
[34] Sawan, Z.M., Gregg, B.R. and Yousef, S.E. (1998) Influence of nitrogen fertilisation and foliar-applied plant growth retardants and zinc on cotton seed yield, viability and seedling vigour. Seed Science and Technology, 26, 393-404.
[35] Sawan, Z.M., Gregg, B.R. and Yousef, S.E. (1999) Effect of phosphorus, chelated zinc and calcium on cotton seed yield, viability and seedling vigour. Seed Science and Technology, 27, 329-337.
[36] International Seed Testing Association (1976) International rules for seed testing. Seed Science and Technology, 4, 51-177.
[37] Bartlett, M.S. (1937) Some examples of statistical methods of research in agriculture and applied biology. Supplement to the Journal of the Royal Statistical Society, 4, 137-183.
[38] Bird, L.S. and Reyes, A.A. (1967) Effects of cottonseed quality on seed and seedling characteristics. Proceedings Beltwide Cotton Conferences, 199-206.
[39] Snedecor, G.W. and Cochran, W.G. (1980) Statistical methods. 7th Edition, Iowa State University Press, Ames, 305.
[40] Abdel-Malak, K.I., Radwan, F.E. and Baslious, S.I. (1997) Effect of row width, hill spacing and nitrogen levels on seed cotton yield of Giza 83 cotton cultivar. Egyptian Journal of Agricultural Research, 75, 743-752.
[41] Palomo, G.A. and Chávez, G.J.F. (1997) Response of the early cotton cultivar CIAN 95 to nitrogen fertilizer application. ITEA. Producción Vegetal, 93, 126-132.
[42] Cheema, M.S., Akhtar, M. and Nasarullah, M. (2009) Effect of foliar application of mepiquat chloride under varying nitrogen levels on seed cotton yield and yield components. Journal of Agricultural Research, 47, 381-388.
[43] Saleem, M.F., Bilal, M.F., Awais, M., Shahid, M.Q. and Anjum, S.A. (2010) Effect of nitrogen on seed cotton yield and fiber quality of cotton (Gossypium hirsutum L.). Journal of Animal and Plant Sciences, 20, 23-27.
[44] Mauney, J.R., Fry, K.E. and Guinn, G. (1978) Relationship of photosynthetic rate to growth and fruiting of cotton, soybean, sorghum and sunflower. Crop Science, 18, 259-263.
[45] Kler, D.S., Raj, D. and Dhillon, G.S. (1989) Modification of micro-environment with cotton canopy for reduced abscission and increased seed yield. Environment and Ecology, 7, 800-802.
[46] Abdel-Al, M.H. (1998) Response of Giza 85 cotton cultivar to the growth regulators Pix and Atonic. Egyptian Journal of Agricultural Research, 76, 1173-1181.
[47] Pípolo, A.E., Athayde, M.L.F., Pípolo, V.C. and Parducci, S. (1993) Comparison of different rates of chlorocholine chloride applied to herbaceous cotton. Pesquisa Agropecuária Brasileira, 28, 915-923.
[48] Sawan, Z.M. and Gregg, B.R. (1993) Influence of growth retardants and plant density on cotton yield and fiber properties. Ann. Bot. (Rome), LI, 33-42.
[49] Li, L.L., Ma, Z.B., Wang, W.L. and Tai, G.Q. (2004) Effect of spraying nitrogen and zinc at seedling stage on some physiological characteristics and yield of summer cotton. Journal of Henan Agricultural University, 38, 33-35.
[50] Basilious, S.I., Abdel Malak, K.K.I. and Abdel, K.A.E.M. (1991) Response of cotton “Giza 83” to some micronutrients as affected by time of application of nitrogen levels. Assiut Journal of Agricultural Sciences, 22, 351-366. (in Egyptian)
[51] Gomaa, M.A. (1991) Response of cotton plant to phosphatic and zinc fertilization. Moshtohor, Annals of Agricultural Science, 29, 1051-1061.
[52] Zeng, Q.F. (1996) Experimental study on the efficiency of K fertilizer applied to cotton in areas with cinnamon soil or aquic soil. China Cottons, 23, 12.
[53] Ibrahim, M.E., Bekheta, M.A., El-Moursi, A. and Gaafar, N.A. (2009) Effect of arginine, prohexadione-Ca, some macro and micro-nutrients on growth, yield and fiber quality of cotton plants. World Journal of Agricultural Sciences, 5, 863-870.
[54] Sawan, Z.M. and Sakr, R.A. (1990) Response of Egyptian cotton (Gossypium barbadense) yield to 1, 1-dimethyl piperidinium chloride (Pix). Cambridge, Journal of Agricultural Science, 114, 335-338.
[55] Carvalho, L.H., Chiavegato, E.J., Cia, E., Kndo, J.I., Sabino, J.C., Pettinelli Junior, A., Bortoletto, N. and Gallo, P. B. (1994) Plant growth regulators and pruning in the cotton crop. Bragantia, 53, 247-254.
[56] Sawan, Z.M., Maddah El-Din, M.S. and Gregg, B. (1989) Effect of nitrogen fertilisation and foliar application of calcium and micro-elements on cotton seed yield, viability and seedling vigor. Seed Science and Technology, 17, 421-431.
[57] Bartee, S.N. and Kreig, D.R. (1974) Cottonseed density: Associated physical and chemical properties of 10 cultivars. Agronomy Journal, 66, 433-435.
[58] Sawan, Z.M., Basyony, A.E., McCuistion, W.L. and ElFarra, A.A. (1993) Effect of plant population densities and application of growth retardants on cottonseed yield and quality. Journal of the American Oil Chemists’ Society, 70, 313-317.
[59] Vlasynk, P.A., Zhidkov, V.A., Ivchenkov, V.I., Kibalenko, A.P., Klimovitskaya, Z.M., Okrim, M.F. and Rudakova, E.V. (1978) Trace elements in nutrient metabolism and productivity of plants. Fiziologia Biokimya Kul’turnykh Rastenii, 10, 350-359.
[60] Guinn, G. (1984) Boll abscission in cotton. In: Gupta, U.S., Ed., Crop Physiology: Advancing Frontiers, Mohan Primlani for Oxford & IBH Publishing Co., New Delhi, 177-225.
[61] Saleem, M.F., Shakeel, A., Bilal, M.F., Shahid, M.Q. and Anjum, S.A. (2010) Effect of different phosphorus levels on earliness and yield of cotton cultivars. Soil and Environment, 29, 128-135.
[62] Alikhanova, O.I. and Tursunov, D. (1988) Efficiency of trace element fertilizers applied to cotton on reclaimed grey-brown stony soils in the Khodzha-Bakirgan massif. Agrokhimiya, 2, 72-77.
[63] Shui, J.G. and Meng, S.F. (1990) Effects of lime application on cotton yield in red soil fields. China Cottons, 26-29.
[64] Wright, S.D., Munk, D., Munier, D., Vargas, R., Weir, B., Roberts, B. and Jimenez Jr., M. (1995) Effect of aminofol/Boll-Set Plus calcium zinc on California cotton. Proceedings of Beltwide Cotton Conferences, 2, 1374-1376.
[65] Kosheleva, L.L., Bakhnova, K.V., Semenova, T.A. and Mil’Kevich, Zh.A. (1984) Effect of phosphorus nutrition on metabolism of young fiber flax plants in relation to assimilate distribution in them. Referativnyi Zhurnal, 6, 533.
[66] El-Debaby, A.S., Hammam, G.Y. and Nagib, M.A. (1995) Effect of planting date, N and P application levels on seed index, lint percentage and technological characters of Giza 80 cotton cultivar. Moshtohor, Annals of Agricultural Science, 33, 455-464.
[67] Taiz, L. and Zeiger, E. (1991) Plant physiology: Mineral nutrition. The Benjamin Cummings Publishing Co., Redwood City, 100-119.
[68] Ochiai, E.L. (1977) Bioinorganic chemistry. Allyn & Bacon, Boston, 515.
[69] Scott, M.G. and Peterson, R.L. (1979) The root endodermis in Ranunculus acris. I. Structure and ontogeny. Canadian Journal of Botany, 57, 1040-1062.
[70] Engels, C. and Marschner, H. (1995) Plant uptake and utilization of nitrogen. In: Bacan, P.E., Ed., Nitrogen Fertilization in the Environment, Marcel Dekker, Inc., New York, 41-81.
[71] Shrivastava, U.K., Tomar, S.P.S. and Singh, D. (1993) Effect of N and Zn fertilization on uptake of nutrients and dry matter production. J. Indian Soc. Cotton Improv., 18, 71-74.
[72] Perumai, N.K. (1999) Effect of different nitrogen levels on morpho-physiological characters and yield in rainfed cotton. Indian Journal of Plant Physiology, 4, 65-67.
[73] Fan, S., Yuzhang, X. and Chaojun, Z. (1999) Effects of nitrogen, phosphorus and potassium on the development of cotton bolls in summer. Acta Gossypii Sinica, 11, 24-30.
[74] Gormus, O. (2002) Effects of rate and time of potassium application on cotton yield and quality in Turkey. Journal of Agronomy and Crop Science, 188, 382-388.
[75] Hodges, H.F., Reddy, V.R. and Reddy, K.R. (1991) Mepiquat chloride and temperature effects on photosynthesis and respiration of fruiting cotton. Crop Science, 31, 1302-1308.
[76] Zhao, D.L. and Oosterhuis, D. (1999) Physiological, growth and yield responses of cotton to MepPlus and Mepiquat chloride. Proceedings of Beltwide Cotton Conferences, 1, 599-602.
[77] Legé, K.E., Cothren, J.T. and Morgan, P.W. (1997) Nitrogen fertility and leaf age effects on ethylene production of cotton in a controlled environment. Plant Growth Regulation, 22, 23-28.
[78] Wu, F.B., Wu, L.H. and Xu, F.H. (1998) Chlorophyll meter to predict nitrogen sidedress requirement for short-season cotton (Gossypium hirsutum L.). Field Crops Research, 56, 309-314.
[79] McConnell, J.S. and Mozaffari, M. (2004) Yield, petiole nitrate, and node development responses of cotton to early season nitrogen fertilization. Journal of Plant Nutrition, 27, 1183-1197.
[80] Wiatrak, P.J., Wright, D.L. and Marois, J.J. (2006) Development and yields of cotton under two tillage systems and nitrogen application following white lupine grain crop. Journal of Cotton Science, 10, 1-8.
[81] Boquet, D.J. (2005) Cotton in ultra-narrow row spacing plant density and nitrogen fertilizer rates. Agronomy Journal, 97, 279-287.
[82] Cakmak, I., Hengeler, C. and Marschner, H. (1994) Changes in phloem export of sucrose in leaves in response to phosphorus, potassium and magnesium deficiency in bean plants. Journal of Experimental Botany, 45, 1251-1257.
[83] Aneela, S., Muhammad, A. and Akhtar, M.E. (2003) Effect of potash on boll characteristics and seed cotton yield in newly developed highly resistant cotton varieties. Pakistan Journal of Biological Sciences, 6, 813-815.
[84] Pervez, H., Ashraf, M. and Makhdum, M.I. (2004) Influence of potassium rates and sources on seed cotton yield and yield components of some elite cotton cultivars. Journal of Plant Nutrition, 27, 1295-1317.
[85] Pettigrew, W.T., Meredith Jr., W.R. and Young, L.D. (2005) Potassium fertilization effects on cotton lint yield, yield components, and reniform nematode populations. Agronomy Journal, 97, 1245-1251.
[86] Wang, Z.L., Yin, Y.P. and Sun, X.Z. (1995) The effect of DPC (N, N-dimethyl piperidinium chloride) on the 14CO2-assimilation and partitioning of 14C assimilates within the cotton plants interplanted in a wheat stand. Photosynthetica, 31, 197-202.
[87] Ram, P., Mangal, P. and Pachauri, D.K. (2001) Effect of nitrogen, chlormequat chloride and FYM on growth yield and quality of cotton (Gossypium hirsutum L.). Annals of Agricultural Research, 22, 107-110.
[88] Mekki, B.B. (1999) Effect of mepiquat chloride on growth, yield and fiber properties of some Egyptian cotton cultivars. Arab Universities Journal of Agricultural Science, 7, 455-466.
[89] Kumar, K.A.K., Patil, B.C. and Chetti, M.B. (2004) Effect of plant growth regulators on biophysical, biochemical parameters and yield of hybrid cotton. Karnataka Journal of Agricultural Science, 16, 591-594.
[90] Palomo, G.A., Godoy, A.S. and Chávez, G.J.F. (1999) Reductions in nitrogen fertilizers use with new cotton cultivars: Yield, yield components and fiber quality. Agrociencia, 33, 451-455.
[91] Ali, S.A. and El-Sayed, A.E. (2001) Effect of sowing dates and nitrogen levels on growth, earliness and yield of Egyptian cotton cultivar Giza 88. Egyptian Journal of Agricultural Research, 79, 221-232.
[92] Ghourab, M.H.H., Wassel, O.M.M. and Raya, N.A.A. (2000) Response of cotton plants to foliar application of (Pottasin-P)TM under two levels of nitrogen fertilizer. Egyptian Journal of Agricultural Research, 78, 781-793.
[93] Bednarz, C.W. and Oosterhuis, D.M. (1999) Physiological changes associated with potassium deficiency in cotton. Journal of Plant Nutrition, 22, 303-313.
[94] Lamas, F.M. (2001) Comparative study of mepiquat chloride and chlormequat chloride application in cotton. Pesquisa Agropecuária Brasileira, 36, 265-272.
[95] Speed, T.R., Krieg, D.R. and Jividen, G. (1996) Relationship between cotton seedling cold tolerance and physical and chemical properties. Proceedings of Beltwide Cotton Conferences, 2, 1170-1171.
[96] Gadallah, F.M. (2000) Seed density in relation to germination and seedling quality in cotton (Gossypium barbadense L.). Alexandria Journal of Agricultural Research, 45, 119-137.
[97] Maiya, M.R., Basave Gowda, Gouda, M.S. and Khadi, B.M. (2001) Effect of size grading on recovery and quality in naturally coloured cotton. Seed Research, 29, 248-250.
[98] Vasudevan, S.N., Virupakshappa, K., Venugopal, N. and Bhaskar, S. (1997) Response of sunflower (Helianthus annuus) to phosphorus, sulphur, micronutrients and humic acid under irrigated conditions on red sandy-loam soil. Indian Journal of Agricultural Science, 67, 110-112.
[99] Lamas, F.M. and Athayde, M.L.F. (1999) Effect of mepiquat chloride and thidiazuron on some characteristics of cotton seed. Pesquisa Agropecuária Brasileira, 34, 2015-2019.
[100] Boman, R.K. and Westerman, R.L. (1994) Nitrogen and mepiquat chloride effects on the production of nonrank, irrigated, short-season cotton. Journal of Production Agriculture, 7, 70-75.
[101] Hiremath, G.M. and Hunsigi, G. (1995) Effect of nitrogen and potash levels on concentration of nitrogen and potassium in petiole of two cotton hybrids (Gossypium sp.). Karnataka Journal of Agricultural Science, 8, 99-101.
[102] Benton, J.J., Wolf, B. and Mills, H.A. (1991) Plant analysis handbook. Micro-Macro Pub., Georgia.
[103] Cakmak, I. (2000) Possible roles of zinc in protecting plant cells from damage by reactive oxygen species. New Phytologist, 146, 185-205.
[104] Ambrose, E.J. and Easty, D.M. (1977) Cell biology. The English Language Book Society and Longman, London.
[105] Mahmoud, M.H., Abdel Aziz, I. and Ashoub, M.A. (1985) The relationship between phosphorous and zinc and cotton plant. Annals Agricultural Science, 30, 1011-1030.
[106] Amberger, A. (1974) Micronutrients, dynamics in the soil and function in plant metabolism. I. Iron. Proc. Egypt. Bot Soc Workshop, 1, 81-90.
[107] More, S.D. and Agale, B.N. (1993) Phosphate balance studies in irrigated cotton. Journal of the Indian Society of Soil Science, 41, 498-500.
[108] Deshpande, R.M. and Lakhdive, B.A. (1994) Effect of plant growth substances and phosphorus levels on yield and phosphorus uptake by cotton. PKV Research Journal, 18, 118-121.
[109] Ahmad, Z., Gill, M.A., Qureshi, R.H., Aslam, M., Iqbal, J. and Nawas, S. (2000) Inter-cultivar variations of phosphorus-deficiency stress tolerance in cotton. Tropical Agricultural Research, 12, 119-127.
[110] Guinn, G. (1985) Fruiting of cotton. III. Nutritional stress and cutout. Crop Science, 25, 981-985.
[111] Mullins, G.L., Schwab, G.J. and Burmester, C.H. (1999) Cotton response to surface applications of potassium fertilizer: 10 years summary. Journal of Production Agriculture, 12, 434-440.
[112] Sawan, Z.M., Mahmoud, M.H. and El-Guibali, A.H. (2006) Response of yield, yield components, and fiber properties of Egyptian cotton (Gossypium barbadense L.) to nitrogen fertilization and foliar-applied potassium and mepiquat chloride. Journal of Cotton Science, 10, 224-234.
[113] Sawan, Z.M., Hafez, S.A., Basyony, A.E. and Alkassas, A.R. (2007) Nitrogen, potassium and plant growth retardant effects on oil content and quality of cotton seed. Grasas Y Aceites, 58, 243-251.
[114] Rathinavel, K., Dharmalingam, C. and Paneerselvam, S. (2000) Effect of micronutrient on the productivity and quality of cotton seed cv. TCB 209 (Gossypium barbadense L.). Madras Agricultural Journal, 86, 313-316.
[115] Katkar, R.N., Turkhede, A.B., Solanke, V.M., Wankhade, S.T. and Sakhare, B.A. (2002) Effect of foliar sprays of n utrients and chemicals on yield and quality of cotton under rainfed condition. Res. Crops, 3, 27-29.
[116] Sabino, N.P., Da Silva, N.M. and Kondo, J.I. (1999) Components of production and fiber quality of cotton as a function of potassium and gypsum. Empresa Brasileira de Pesquisa Agropecuáia, Embrapa Algodão, Campina Grande, 703-706.
[117] Wiatrak, P.J., Wright, D.L., Marois, J.J., Koziara, W. and Pudelko, J.A. (2005) Tillage and nitrogen application on cotton following wheat. Agronomy Journal, 97, 288-293.
[118] Wang, Y.Q., Yang, W.H., Zhou, D.Y. and Xu, H.X. (2003) Study on the relationship between the nutrients of cottonseed and germination and emergence percentage. Cotton Science, 15, 109-112.

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