论文部分内容阅读
黄花梨(由浙农大育成,黄蜜与早三花杂交),杂交优势强。生产上黄花梨修剪树形以单干形和疏散分层延迟开心形较普遍,而最普遍的为疏散分层延迟开心形。疏层开心形2～3年内以短截为主,促基部多发强枝,基部有足够生长技发生后,除中心干继续保持直立延伸外,对其他枝拉开缓放培养。整体树形中心干上着生5～7个主枝,主枝上着生7～10个副主枝,成第一、二、三层侧枝。中心干延伸2.5～3m时及时封顶落头呈开心形。
Huanghua pear (made by Zhejiang Agricultural University, yellow honey and early hybrids), strong heterosis. The pruning tree on the production of Huanghua prickly stem and evacuation layered delaying happy-shaped more common, and the most common for the delamination delamination happy-shaped. Sparse layer of happy shape 2 to 3 years to mainly short stub, to promote the base of multiple strong branches, the base has sufficient growth after the technology occurs, in addition to central stem to maintain the upright extension of the other branches opened to slow down training. The whole tree center dry on the students of 5 to 7 main branches, the main branch with students 7 to 10 Vice main branches, into the first, second and third side branches. Center extension of 2.5 ~ 3m timely capped head was happy.