半矮化型、紧凑型、普通型桃树枝条和叶片特征比较

TL;DRAbstract

Branch and leaf characteristics of SD-9238, Compact Elberta and Ruiguang No.3, belonging to semi-dwarf type, compact type and standard type respectively, were investigated in this study. The rootstock used for grafting the scion was seedlings of wild peach [Prunus persica (L.) Batsch.]. The results showed that: (i) There was no significant difference in length of 1(superscript st) order branches. But the length of semi-dwarf type and compact type's branches were 12.5% shorter than that of standard type. There were significant differences in internode length among them, appearing semi-dwarf＜compact type＜standard type. Branch angle of compact type was the biggest and its canopy shape was flatter than the others. (ii) The vegetative bud breaks of 1(superscript st) order branches were 51.7%, 86.1% and 72.8% for semi-dwarf type, compact type and standard respectively. The differences were significant at 0.05 level. 40.7%, 78.1% and 51.3% of the break bud could grow up to branches. The exact

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