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 J. L. Y. Petri and G.B. Leite, Budbreak induction in apple tres by erger and calcium nitrate application, Acta Horticulturae. 884(65) (2010) 511-516.DOI: https://doi.org/10.17660/actahortic.2010.884.65
 [M.A. Seif El-Yazal and M.M. Rady, Foliar-applied DormexTM or thiourea-enhanced proline and biogenic amine contents and hastened breaking bud dormancy in 'Ain Shemer', apple trees, Trees. 27 (1) (2013) 161-169.DOI: https://doi.org/10.1007/s00468-012-0785-5
 M.A. Seif El-Yazal et al., Foliar-applied dormancy-breaking chemicals change the content of nitrogenous compounds in the buds of apple (Malus sylvestris Mill. cv. Anna) trees, Journal of Horticultural Science & Biotechnology87(4) (2012) 299–304.DOI: https://doi.org/10.1080/14620316.2012.11512868
 M.A. Seif El-Yazal et al., Exogenous dormancy-breaking substances positively change endogenous phytohormones and amino acids during dormancy release in Anna, apple trees, Plant Growth Regul. 72(2014) 211-220.DOI: https://doi.org/10.1007/s10725-013-9852-1
 M.A. Seif El-Yazal, Effect of timing of mineral oil spraying on budburst and metabolic changes in Barkhar, apple trees under conditions of inadequate winter chilling in Egypt, Horticult. Int. J. 3(2) (2019a) 67‒75.DOI: https://doi.org/10.15406/hij.2019.03.00114
 M.A. Seif El-Yazal, Seasonal changes in soluble and non-soluble carbohydrates during and after dormancy release in early and late varieties of apple (Malus Sylvestris, Mill) trees, International Journal For Empirical Education and Research. 3(20) (2019b)1-18.DOI: https://doi.org/10.35935/edr/33.181
 M.A. Seif El-Yazal, Impact of chilling requirement on budburst, floral development and hormonal level in buds of early and late apple varieties (Malus sylvestris, Mill) under natural conditions, Journal of Horticulture and Plant Research. 8(2019c)1-11.DOI: https://doi.org/10.18052/www.scipress.com/jhpr.8.1
 M.A. Seif El-Yazal, Impact of Chilling Requirements on Metabolic Changes in Phenolic Compounds in Buds during and after Dormancy Releasing in early and late (Malussylvestris, Mill) Apple Varieties, International Letters of Natural Sciences. 81(2021) 13-22.DOI: https://doi.org/10.18052/www.scipress.com/ilns.81.13
 M.E. Carvajal et al., Caracterización calorimétrica de la brotación de yemas florales de manzano, Agrociencia. 34(5) (2000) 543-551.
 M.A. Seif El-Yazal et al., Foliar-applied mineral oil enhanced hormones and phenols content and hastened breaking bud dormancy in Astrachan, apple trees, International Journal for Empirical Education and Research 1 (2) (2018a) 57-73.DOI: https://doi.org/10.35935/edr/22.7357
 M.A. Seif El-Yazal et al., Changes in promoter and inhibitor substances during dormancy release in apple buds under foliar-applied dormancy-breaking agents, International Journal for Empirical Education and Research. 1 (4) (2018b)1-20.DOI: https://doi.org/10.35935/edr/24.201
 M.A. Seif El-Yazal et al., Metabolic changes in polyamines, phenylethylamine, and arginine during bud break in apple flower buds under foliar-applied dormancy-breaking, International Journal for Empirical Education and Research. 1 (2) (2018c) 1-18.DOI: https://doi.org/10.35935/edr/22.181
 M.A. Seif El-Yazal et al., Changes in metabolic processes during break dormancy in apple buds under foliar-applied garlic extract, International Journal for Empirical Education and Research. 1(4) (2018d) 36-58.DOI: https://doi.org/10.35935/edr/24.5736
 J.M.S. Parra et al., Cold compensators in apple tree Golden Glory,: development and production, Revista Mexicana Ciencias Agrícolas. 11(1) (2020) 69-82.
 M.A. Seif El-Yazal et al., Onion extract application effects on flowering behavior and yield, and a few chemical constituents of shoots throughout dormancy break in Anna, apple trees, Journal of Horticulture and Plant Research. 7(2019)1-15.DOI: https://doi.org/10.18052/www.scipress.com/jhpr.7.1
 M.A. Seif El-Yazal andS.A. Seif El-Yazal, Impact of chilling requirements on metabolic changes in nitrogenous compounds in buds during and after dormancy releasing in early and late (Malus sylvestris, Mill) apple varieties, Horticult. Int.J. 3(5) (2019)230‒238.DOI: https://doi.org/10.15406/hij.2019.03.00137
 R.V. Botelho and M.M.L. Muller, Evaluation of garlic extract on bud dormancy release of Royal Gala, apple trees, Australian Journal of Experimental Agriculture. 47 (6): (2007) 738-741.DOI: https://doi.org/10.1071/ea06135
 L.E. Quintana, Aplicación de promotores de brotación en base a la actividad metabólica de las yemas en manzano Golden Delicious, Tesis de Maestría de la Facultad de Ciencias Agrotecnologicas Universidad Autónoma Chihuahua. (2006) 103 p.DOI: https://doi.org/10.20937/rica.2019.35.esp03.04
 M.E. Morsi and M.A. seif El-Yazal, Effect of garlic and onion extract on bud break, growth, yield, berry quality and some chemical constituents of flam seedless and superior grapevines (Vitis vinifera L. ), Egypt. J. Hort. 35(1) (2008a) 1-28.DOI: https://doi.org/10.21608/fjard.2008.197477
 M.E. Morsi and M.A. seif El-Yazal, Effect of potassium nitrate, garlic and onion extracts on bud break, growth, yield and some chemical constituents of apple (Malus sylvestris, Mill) trees, Fayoum J. Agric. Res. & Dev. 22(1) (2008b) 82-93.DOI: https://doi.org/10.21608/fjard.2008.197477
 M.M. Rady and M.A. Seif El-Yazal, Response of Anna, apple dormant buds and carbohydrate metabolism during floral bud break to onion extract, Scientia Horticulturae. 155(2013) 78-84.DOI: https://doi.org/10.1016/j.scienta.2013.02.025
 M.M. Rady and M.A. Seif El-Yazal, Garlic extract as a novel strategy to hasten dormancy release in buds of Anna, apple trees, South African Journal of Botany. 92(2014) 105–111.DOI: https://doi.org/10.1016/j.sajb.2014.02.012
 M.A. Seif El-Yazal and M.M. Rady, Changes in nitrogen and polyamines during breaking bud dormancy in Anna, apple trees with foliar application some compounds, Scientia Horticulturae. 136(2012) 75-80.DOI: https://doi.org/10.1016/j.scienta.2012.01.001
 M.A. Seif El-Yazal and M.M. Rady,Exogenous onion extract hastens bud break, positively alters enzyme activity, hormone, amino acids and phenol contents, and improves fruit quality in Anna, apple trees, Scientia Horticulturae. 169(2014) 154–160.DOI: https://doi.org/10.1016/j.scienta.2014.02.016
 M.A. Seif El-Yazal andS.A. Seif El-Yazal, Impact of foliar-applied dormancy-breaking agents on flowering behavior, yield, fruit quality and some chemical constituents of Ein Shamer, apple trees, Innovare Journal of Agri. Sci. 9 (1) (2021) 16-21.DOI: https://doi.org/10.22159/ijags.2021.v9i1.40690
 A.A. El- Shewy et al., ffect of some dormancy breaking components on blooming, fruit set, yield, yield components and physical and chemical properties of fruits of some apple cultivars. A. Blooming and fruit set, Annals of Agric. Sci., Moshtohor. 37(4) (1999a) 2235 – 2246.
 A.A. El- Shewy et al.,Effect of some dormancy breaking components on blooming, fruit set, yield, yield components and physical and chemical properties of fruits of some apple cultivars. B-.Yield, yield components and physical and chemical properties of fruits, Annals of Agric. Sci., Moshtohor. 37(4) (1999b) 2247 – 2267.DOI: https://doi.org/10.21608/assjm.2019.42147
 A.A. El- Shewy et al., Effect of some dormancy breaking components on leaves and fruits chemical composition of some apple cultivars. 1. Chemical composition of leaves, Annals of Agric. Sci., Moshtohor37(4). (1999c) 2269 – 2278.
 A.A. El- Shewy et al., Effect of some dormancy breaking components on chemical composition of leaves and buds of some apple cultivars. 11. Chemical composition of vegetative and generative buds, Annals of Agric. Sci., Moshtohor. 37(4) (1999d) 2279 – 2306.
 S.A. Wilde et al., Soil and Plant Analysis For Tree Culture, 3rd Ed. Oxford IBLT Publishing Co., New Delhi.(1985) 9-100.
 A.R. Welburn and H. Lichtenthaler, Formula and program to determine total caroteniods and chlorophyll a and b of leaf extracts different solvents, In Advances in photosynthesis Research (Sybesma C.Ed.). II (1984) 9-12, Mortinus Njihoff Dr. W. Junk publishers, the Hague.
 D.Herbert et al., Determination of total carbohydrates, Methods in Microbian. 5 (B) (1971) 209-244.
 J. Jayarman, Laboratory Manual in Biochemistry, Wiley Eastern Limited New York. (1981) 61-73.
 AOAC, Association of Analytical Chemist, Official methods of analysis of AOAC International. 17th edition. Gaithersburg, MD, USA, Associationof Analytical Communities2000.
 A.I. Page et al., A I, Methods of Soil Analysis,, Part II. Chemical and Microbiological Methods. 2nd Ed. Amer. Soc. Agron., Madison, Wisconsin, USA (1982).
 K.A. Gomez and A.A. Gomez, Statistical Analysis Procedure of Agricultural Research. John Wiley and Sons, New York (1984) 25-30.
 F.B. Salisbury and C.W. Ross, The photosynthesis, transpiration compromise, In: Plant Physiology. (1992) 66 –92. Wadsworth Pub. Comp., California USA.
 V. Rajagopal and I.M. Rao, Changes in the endogenous level of auxin and gibberellin like substances in the shoot apices of N- deficient tomato plant, Aust. J. Bot. 22(1974) 429 – 435.DOI: https://doi.org/10.1071/bt9740429
 D.J. Greenwood and J. Hunt, Effect of nitrogen fertilizer on the nitrate contents of field vegetables grown in Britain, J. Sci. Food Agric. 37(1986) 373 – 383.DOI: https://doi.org/10.1002/jsfa.2740370407
 K.Mengel and E.A. Kirkby, Principal of plant nutrition, .4th Ed. International potash Institute. Pern, Switzerland. (1987) 687.
 I. Kuroi, Effects of calcium cyanamide on bud break of Kyoho, grape, J. Japan Soc.,Hort. Sci. 54(1985) 301-306.DOI: https://doi.org/10.2503/jjshs.54.301
 Y.S. Yang et al., The effect of calcium cyanamide on bud break retranslocation of accumulated 14c- assimilates and changes of nitrogen in grapevines in Taiwan, Acta.Hort. 279(1990) 409-425.DOI: https://doi.org/10.17660/actahortic.1990.279.46
 C.S. Miller and W.C. Hall, The fat of cyanamide in cotton, Agric. And Food Chemistry. 11(1963)222-225.
 J.H. Foott, The effect of hydrogen cyanamide on breaking endo-dormancy of mid-chilling apple, Acta. Hort.329(1987)268-270.DOI: https://doi.org/10.17660/actahortic.1993.329.62
 V. Luna V. et al., Levels of endogenous gibberellins, abscisic acid, Indole 3 acetic acid and naringenin during dormancy of peach flower buds, Acta Hort. 329(1993)165 -267.DOI: https://doi.org/10.17660/actahortic.1993.329.61
 S. Subha-drabandhu, Induction of bud break in apple trees that received insufficient chilling by hydrogen cyanamide, Acta Hort. 409(1995) 171-178.DOI: https://doi.org/10.17660/actahortic.1995.409.21
 E.M.A. Nashaat, Bud break, yield, fruit quality and some endogenous compounds of flame seedless grape vines and sultani fig trees in relation of dormex spray, M. Sc. Thesis, Univ. of Alexandria. (1996).
 K.G.M. Skene, A comparison of the effects of cycocell and tipping on fruit set Vitis vinefra L. Aust. J. Bio. Sci. 22(1969)1305 – 1311.DOI: https://doi.org/10.1071/bi9691305
 J. Tromp, Storage and mobilization of nitrogenous compounds in apple trees with special reference to arginine, In physiology of trees crops., Eds. L.C. Luckwill and C.V. cutting 14(1970) 3-59. Academic Press, Londone and New York.
 H.A. Boghdadi, Principles of fruit production. Dar El-Maerif, Cairo, Egypt, 3rd ed. (1964) 663-667.
 C.D. Dame et al., The influence of ripeness on the organic acids, sugars and pectin of canned Bartlett pears, Fd. Techn. Champing. 10(1956) 23-33.
 S.S. Mann and B. Singh, Some aspects on development physiology of patharankh pear, Acta. Hort. 279 (1990) 155-158.DOI: https://doi.org/10.17660/actahortic.1990.279.17
 L.W. Mapson, Vitamins in fruits. In The Biochemistry of fruits and their production, Vol. 1, Ac Hulme. Ed . Academic press. New York. (1970).
 A.P. George et al., Factors affecting fruit quality of low chill stone fruit in subtropical Australia, Acta. Hort. 279(1990) 559-564.DOI: https://doi.org/10.17660/actahortic.1990.279.62
 E.Z. Ahmed, Effect of Gibberellin, Cycocel, Calcium and Boron, fruit size and position within tree canopy on quality and mineral content of Anna apple fruits during storage, Ph. D. Thesis, Alexandria Univ. (1995).
 B.M. Gangwar, Biochemical studies on growth and ripening of guava, Indian Food Packer. 26(1972) 13-15.