المراجع العربية

• أ. د. أمين عكاشة
• أ. د. فاطمة أمين خليل
• أ. د. إكرام سعد الدين
• زراعة وإنتاج البيكان : نشرة إرشادية .

المراجع الأجنبية

• Abo - Taleb, S.A.; Laz, S. I. and youssef, N. F. 1998 :- Effect of foliar sprays with zinc sulphate on growth and fruiting in some pecan cultivars. J. Agric. Sci. Mansoura Univ., 23(4)1649-1658.
• El-Sayed, M. E.; Abou Shanab I. S.; Hamouda, A. M. and Khalil, F. A. 1992:- Effect of cold stratification treatment on some endogenous compounds of some american pecan seeds and its relation to the germination pecan tage. Egytp. J. Am. Sci, 7(11).
• Khalil, F. A. ; Hamouda, A. M.; Abou Shanab I. S. and Noaman V. F., 1983 :- Influence of gibberellic acid on enhancing pecan seedling growth. Ann, Agr. Soc., Fac. Agric., Ain Shams Univ., Egypt. Vol. 28(3), pp. 1689 - 1698.
• Khalil, F. A. ; Hamouda, A. M.; Abou Shanab I. S. and El-Sayed, M. E., 1984:-Some methods to enhance seed germination of some pecan cultivars. printed by General Administration of Acrarian culture press.
• Osman, L. H. ; and Abou Shanab I. S. and El-Sayed 1993 : Effect of tap root pruning and gibberellic spray of growth of pecan seedings. Hort Res. Ins. Agric. Res. cent. ARE.
• Tawfik, S. W.1989 : Study of some factors
• affecting growth of pecan seedlings. M. Sc. Thesis, Fac. Agric., Moshtohor Zagazig Univ.
• Youssef, N. F. 1978 :- Studies on pecan propagation. M. Sc. Thesis, Fac. Agric., Ain Shams Univ.
• Youssef, N. F. 1984 : Physiological and Histological Studies in pecan. Ph.D. Thesis, Fac. Agric., Ain Shams Univ.
• Youssef, N. F.; Khalil, F. A. and Abou Shanab I. S. 1989 : Effect of ethephone and NAA on shuck dehiscence of Desirable pecan fruits in Egypt. J. Agric. Sc. Mansoura Univ. 14(3) : 1709 - 1713 .
• Youssef, N. F.; Noaman V. F. and El-Sherif, A. H.(1994) : Effect of hydrogen cyanamide of inducing early bud beak flowering and ripening of ز Desirable ز pecan trees in Egypt. J. Appl.9( 4 )1994.
• William, D. G(1989)- pecan Production in the South east .
• The Alabama cooperative Extension Service . First Edtion.