... 15,6 ta/ha vi cho y F y ' lai thuan cao nhit li 3,642 trieu ddng/ha v i cao hon so vdi ddi chiing 518.000 ddng/ha d muc phan bdn P4 v i P5 cho nang suit cao hon nhung cho lai thuin d mirc trung ... trudng bdng VNOI-2 cd xu hudng ngin lai F F y Ket qui theo ddi cho thiy chieu cao ciy ty le thuan vdi thdi gian sinh trudng, d thdi vu gieo sdm 20/4 chilu cao ciy cao nhit dat 154cm Cic thdi vu gieo ... nang suit cao hon so vdi each gieo hang tir 0,2 - 0,4 ta/ha Gieo bdng d mat 5,5 van ciy/ha cho ning 38 ' F F suit cao nhit 16,6 - 17 ta/ha, cao hon so vdi ning suit d mat gieo cdn lai F f ^ r...