TY - JA AU - Pasqualetto,P.L. AU - Fordham,I. AU - Zimmerman,R.H. TI - Gelling agent and growth regulator effects on shoot vitrification of 'Gala' apple in vitro SN - 0003-1062 U1 - 87-071395 PY - 1986/// KW - Colloids KW - Malus pumila KW - Plant growth substances KW - Tissue culture T2 - Journal of the American Society for Horticultural Science ER -