【作者】 陈立松； 刘星辉；

【Author】 Chen Lisong and Liu Xinhui (Department of Horticulture, Fujian Agricultural University, Fuzhou350002)

【机构】 福建农业大学园艺系；

【摘要】 本文调查了芒果(Mangifer aindica L.)和杨梅(Myrica rubra Sieb,＆ Zucc．)同株不同枝龄,不同级别枝的横截面积。统计分析表明,芒果和杨梅枝横截面积等于其着生的所有低龄枝横截面积之和,因此,主干横截面积应等于其上着生的所有一年生枝条横截面积之和。本文以一维阻力模型(流动速率=驱动力／阻力)和流体连续方程为基础,讨论了芒果和杨梅各年龄级别枝横截面积相等的理论依据及这二条生物学原理的应用价值,理论价值及其局限性。更多还原

【Abstract】 Cross section areas of various age and grade branches in the same plants in Mango (Mangifera indica L. ) and candle -berry myrtle (Myrica rubra Sieb,& Zucc.) were measured. Statistical analysis showed that mango and candle - berry myrtle branch cross section area equalled the total cross section area of all branches growing out of the branch, therefore, the cross section area of trunk equalled the total cross section area of all one year branches growing out of the plant. Based on one dimensional resistant model (Flux= Driving force/Resistance) and fluid continuous equation,the applied and theoretical values and the limitations of the two biological principles were also discussed.更多还原