6HUSSAIN A,HAQ L,HUSSAIN T.Effect of different stratification period on germination and vigour of pecan nut. Sarhad J Agric . 1988
7GOFF W D,BRASHER L R,MCGUIRE J A.Germination of unstratified pecans is affected by exposure to high tem-perature and by soaking. Scientia Horticulturae . 1992
8REHMAN N,HUSSAIN L,NISA Z U.Germination study on five different varieties of pecan nut. Pakistan J BiolSci . 1999
9Dimalla,GG,Van,Staden,J.The effect of temperature in the germination and endogenous cytokinin and gibberellin levels of pecan nuts. Zeitschrift fur Pflanzenphysiol . 1977