工业大麻群体结构与个体发育关系初探

Preliminary Study of Relationship between Population Structure and Ontogenesis in Hemp

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。

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.