Abstract: The correlativity between the various characters of i ndividu al plant of Amaranthns hypochondriacus and its yield was analysed by the method of Grey corr elatviiy.The result shows the main factors affecting the yield of individual pla nt and the different relativiiy among the various factors.It gives some useful r eference to the breeding of the new cultivated variety and the establishing of r easonable cultivated measure.

摘要： 通过灰色关联度分析对美国籽粒苋单株各个性状与单株产量间的相互关系进行了分析，找出了影响单株产量的主导因素，分清了各个因素间的主次关系，为选育优良新品种和制定合理栽培技术措施提供了科学依据。