The Propagation Of Apple Nutrition Pot Seedlings

The effect of different stroma and stem height on the propagation of apple and the effect of apple seedlings on orchard were conducted with 2 year old Gala apple trees from 2014 to 2015 in the northwest A&F university apple station orchard which located in shaanxi province LuoChuan City. The results of the study are as follows:1. The effect of different stroma results show that:The influence of different stroma on variation of plants and leaf weight have showed that, H is the largest,the next is B, C,E, F, G is the worst; In addition, the difference between A and E are not significant.The influence of different stroma on branches have showed that A, B, C, D, G, H is no significant difference, E, F is similar. The largest number is E,F, A, B, C is the second, D, G is less. For the proportion of all kinds of branches, the middle braches is largest in A, E, D, G,in F, H the vegetative branches is larger, in B is long branches, and in C short branches proportion is bigger.The influence on total length of braches, F is the largest, H, C, A, B, G is less; In A, E, G, the proportion of middle branches length is high, in B, C, D, the proportion of long branch length is larger, in F, G, the proportion of nutrition branch length is bigger.Stroma for the distribution of the underground biomass is not significant, A and G, D, E and F, has no significant difference C,andF, B and H, is also similar, H is the biggest, B, C,is significant difference F, is next, G is smallest; For the influence of the root-shoot ratio, B and C, A and C is no significant difference, H, D, F is also similar, G is biggest, E, A, F is next, H is minimal.Analyzing various discussions and considering the economic factors, the conclusions is following, if it is large scale breeding, better stroma is C(soil; fat = 3:1) and F(soil: stroma: fat = 3:0. 5:0. 5), if it is used for ornamental, B =(soil: matrix 2:2) and H( pure stroma)is better choose.2. The results of different stem height show that :the influence of different stem height on the quality of plant size, leaf, branch number, branch length and the distribution of biomass,there is no significant difference in 80 cm, 100 cm, they are better than no pruning,it is better about 45% of the plant size, leaf quality is better 10%,branch number and length 30%, and biomass allocation 10%,so the better stem height is 80 cm, 100 cm.