Probing into the Hedge Apprasing and Choosing Model Index through the Growth Characteristic of Diospyros vaccinioides Lindl. , Murraya paniculata (Linn) Jack and Ardisia squamulosa Presl.

To probe into the light adaptation and set up the appraisal simple model index characteristics of candidate hedge plants, this experiment uses Diospyros vaccinioides Lindl. as the example of candidate plant, comparing to commonly used shading durable hedge plants Murraya paniculata (Linn) Jack and Ardisia squamulosa Presl. Shading combination block design is used to probe into 12 characteristics ( 1.internode of former season shoot, 2.internode of new shoot, 3.growth performance of the branch, 4.count of new shoot, 5.node count of new shoot, 6.growth of new shoot, 7.growth of former season shoot , 8.growth of old shoot, 9.new node count of former season shoot, 10.count of shoot with growth, 11.total new growth, 12.total count of new node), 5 shading degree ( 0%, 30%, 50%, 80%, 90%) and species relationship of these three species of trees. The results show that, internode of new shoot, grow of new shoot, side branch counts are not obviously related with shading process. Other characteristics are related with shading and species, besides that measured in December. Especially total count of new node, count of shoot with growth and growth of farmer season shoot are all closely related with shading and species and have obvious difference. Their growth may roughly express their adaptation to light, so may be used as effective appraisal index characteristics. Three season summary is the most obvious for growth appraisal, the next is September and March. Kinds and counts of each branch of each species are closely related to their tree species so may used as reference of tree shape forming. This experiment also show that growing under shading of 30-80%, Diospyros vaccinioides Lindl. , Murraya paniculata (Linn) Jack and Ardisia squamulosa Presl are superior to non-shading and 90%shading.Three season summary mean growth value in total count of new node, count of shoot with growth and growth of farmer season shoot are Diospyros vaccinioides Lindl.: 1576.8 /plant, 230.6/plant, 6.6cm/shoot; Murraya paniculata (Linn) Jack: 71.2/plant, 29.6/plant, 13.9cm/shoot; Ardisia squamulosa Presl: 150.7/plant, 26.7/plant, 13.3cm/shoot