【摘要】 本文研究了5-8月龄华北驼绒藜(Ceratoides arborescens)植株主根直径与移栽成活率的关系。结果表明,主根直径与移栽成活率呈三次曲线相关,回归方程为y=1125.7x3-1656x2+637.7x-19.14,R2=0.97。由回归方程解出,当主根直径为0.263cm时,华北驼绒藜群体移栽植株的平均成活率达到最大值54.51%。较小主根直径的植株和较大主根直径的植株移栽成活率均较低。同时表明,在环境因素作用下,主根直径较粗的华北驼绒藜在低气温时移栽,成活率相对较高。更多还原

【Abstract】 This paper studied the five to eight months Ceratoides arborescens taproot diameter and the relationship between the transplanting survival rate.The results showed that the taproot diameter and cubic curve correlated to the transplanting survival rate,the regression equation of y=1125.7x3-1656x2+ 637.7x-19.14,R2=0.97.By the regression equation to work out,when the taproot diameter was 0.263 cm,the average survival rate of C.arborescens transplanting reached a maximum of 54.51%.Smaller root diameter of the plants and higher root diameter plants transplanting survival rate were low.Also showed that,under the effect of environmental factors,the more thick taproot diameter of under low temperature when transplanting of C.arborescens,the survival rate was relatively high.更多还原