Influence of Growth and Fructification Characteristics of Mother Trees by  Tree Management in Larix olgensis Henry Seed Orchard(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Influence of Growth and Fructification Characteristics of Mother Trees by  Tree Management in Larix olgensis Henry Seed Orchard

Author(s):: ZHANG Yanhui1; FENG Jian2; ZHANG Suqing2; CAO Shigang3; (1.State-owned Dongzhou District Hada Forest Farm,Fushun,Liaoning 113015；2.Liaoning Academy of Forestry Sciences,Shenyang,Liaoning 110032；3.Benxi Manchu Autonomous County Qinghecheng Experiment Forest Farm,Benxi,Liaoning 117116)

Keywords:: tree management; seed orchard; Larix olgensis Henry; fructification

Abstract:: This study focused on the influence on growth and fructification characteristics of mother trees by tree management in Larix olgensis Henry seed orchard.The results showed that the average tree height of mother trees increased from 5.93 m to 7.52 m by the pruning,and the increment of 5 years was only 1.59 m;crown diameter compared with CK increased 1.60 m,21.28 percentage point higher growth rate;the average yield of treated mother trees was 1.71 kg,the max average yield of treated mother trees was 4.99 kg,was 1.34 times and 5.74 times of control mother trees,respectively.The best pruning of Larix olgensis Henry mother trees was moderate and severe pruning,and truncated by retained branch of 5-7.

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Last Update: 2017-04-01