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为探讨在泰安地区自然条件和管理技术水平下,“Y”形栽培梨园合理的树体群体结构参数,对优质高产“Y”形试验梨园的树体和群体结构进行了调查。结果表明,“Y”形‘王秋’梨园盛果初期667 m~2产量为2 550 kg时,枝量约为3.2万条,树体枝类组成以短枝为主,占总枝量的80.1%,其余依次为中枝、长枝、发育枝。“Y”形‘秋月’梨园盛果初期667 m~2产量为2 875 kg时,667 m~2枝量约为3.4万条,树体枝类组成以短枝为主,占总枝量的75.6%,其余依次为中枝、长枝和发育枝。“Y”形‘新高’梨园盛果期667 m~2产量为3 000 kg时,枝量约为3.7万条,树体枝类组成以短枝为主,占总枝量的82%,其余依次为长枝、中枝、发育枝。
In order to explore the reasonable tree population structure parameters of “Y” shape pear orchards under the natural conditions and management techniques in Taian area, the tree structure and population structure of high quality and high yielding “Li” shape pear orchards were investigated. The results showed that when the yield of “Y” -shaped ’Wangqiu’ pear orchard was 667 m ~ 2 at the initial yield of 2 550 kg, the number of branches was about 32,000. The branches of the tree were dominated by short branches, 80.1% of the amount, followed by the middle branch, long branch, branch development. When the yield of 667 m ~ 2 was 2 875 kg, the number of 667 m ~ 2 branches was about 34,000 in the early stage of pear orchard full of fructification, The amount of 75.6%, followed by the middle branch, long branch and development branch. “Y ” shaped ’new high’ pear orchard full fruit stage 667 m ~ 2 When the output is 3 000 kg, the branch volume is about 37000, the branches of the tree are mainly short branches, accounting for 82% , Followed by the long branch, branch, branch development.