工业大麻群体结构与个体发育关系初探

研究大麻群体结构与个体发育关系是提高大麻产量的重要途径之一。本文采用L9（34）正交设计进行工业大麻密度、施肥量及品种3因素综合试验，研究群体结构与个体发育及单位面积产量的关系。结果表明，个体发育与群体密度大小的矛盾比较突出，除韧皮厚之外个体农艺性状与密度呈反比关系，而单位面积产量则与密度有正相关；施肥量则与个体农艺性状和单位面积产量均成正相关；3个品种因生长习性不同而有不同的适宜群体结构。试验结果提示，生产中应根据纤用和全杆利用种植目的选择合适的品种、种植密度和较高的施肥量，才能协调个体与群体的关系，获得优质高产。

Preliminary Study of Relationship between Population Structure and Ontogenesis in Hemp

To study the relationship between population structure and ontogenesis is an important way for increasing production in hemp.An integrative test of three factors of density , fertilizer and hemp variety was carried out by adopting an orthogonal design L 9 （34 ） in this paper.The result indicated that there was an evident contradiction between ontogenesis and population density , agricultural traits of single-plant was inversely correlated to planting density except phloem thickness , but the yield per unit area was positively correlated to planting density.Agricultural traits of single -plant and yield per unit area were positively correlated with fertilizer.Three varieties had different suitability for population structure because of different growth habits.Results from above suggested that , suitable varieties , planting density and increased fertilizer should be chosen according to the production goal , which is whether for fiber or for stalk, so as to coordinate the relationship between single -plant and population , and get high quality and yield.