关键词: 单倍体, 单倍体, 散粉率, 自交结实率, 育性

Abstract:

The paper focused on establishment of volume table with two factors for short-rotation industrial timber Pinus elliottii Engelm plantationin in Guangxi,which offers scientific bases for volume calculation and application of Pinus elliottii Engelm forestry management. 632 sample Pinus elliottii Engelm industrial timber trees were measured in 9 sub-farms of Guangxi stated Qinlian forestry farm with different site conditions, ages and density, 5 data models were conducted, the best volume increment model: V=-0.036509+0.010357D-0.000730D2-0.000498DH+0.000084D2H+0.001466H and volume table with two factors D (diameter) and H (height) for short-rotation industrial timber Pinus elliottii Engelm plantation were established. The average error and system error were 6.1%, 2.9%, respectively in model 1, its precision was eligible to be used in forestry production and application.