俄罗斯花楸1年生播种苗生长调查分析初报

对1年生俄罗斯花楸播种苗苗高、地径的年生长量进行调查的结果表明:1 m^2产苗量34~178株,最大苗高114.5 cm,最大地径17.36 mm,总体平均苗高为38.24 cm,地径平均为7.24 mm。初步确定俄罗斯花楸1年生播种苗最适宜密度为60株/m^2,在此密度下苗高平均为50.28 cm,地径平均为9.38 mm。苗高、地径和密度相关性显著,苗高与地径呈正相关,相关系数为0.549,苗高、地径与密度呈负相关,相关系数分别为-0.242、-0.372,密度越大,苗高、地径越小。

A Preliminary Rreport on the Investigation and Analysis of the Growth of 1-year-old Seedlings of Sorbus aucuparia

Taking the one-year-old Sorbus aucuparia as the research object,the annual growth of its seedling height and ground diameter is investigated.The results show that the seedling yield of 1 m^2 is 34~178,the maximum seedling height is 114.5 cm,the maximum ground diameter is 17.36 mm,the overall average height of seedlings is 38.24 cm,and the average ground diameter is 7.24 mm.It is preliminarily determined that the most suitable density for the 1-year-old seedlings of Sorbus aucuparia is 60 plants/m^2.Under this density,the average height of seedlings is 50.28 cm,and the average ground diameter is 9.38 mm;The seedling height,ground diameter and density are significantly correlated,seedling height and ground diameter are positively correlated,the correlation coefficient is 0.549,seedling height,ground diameter and density are negatively correlated,the correlation coefficients are-0.242,-0.372.