【摘要】 砂仁由北纬 2 4°37′(长泰 )北移到北纬 2 6°34′(南平 )的种群水平的果实产量分析结果表明 :北移引种砂仁种群密度与生殖株数和花序数成正比。从花发育成果实的过程 ,花序数与成果粒数的定量关系可用函数 y6=82 89- 330 6 1/y2 描述 ;在花期 ,保持单位面积有 4 0株·m-2 植株 ,其中 4 5 %为生殖株 ,壮苗和老苗的生殖株占 6 5 %左右 ,花序数在 2 8穗·m-2以上 ,可作为引种砂仁种群获较高产量的性状指标。更多还原

【Abstract】 The results of fruit yield analysis of population level of Amomum villosum moved from north latitude of 26°37′(Changtai) to north latitude of 26°34′(Nanping) show that the population density of introduced A.villosum moved northward assumes the direct proportion with reproduction tree number and inflorescence number.The quantitative relation between the inflorescence number and fruit amount may be described as y 6=82.89-330.61/y 2 during the course of development of flowers into fruits:40 trees per square metre is held on the blooming period,the reproduction trees account for 45% of the 40 trees,vigorous seedlings and decrepit seedlings account for about 65% of the reproduction trees,the inflorescence number is over 28 ears per square metre,all the above may be taken as the character indexes to obtain relatively high yield with A.villosum population introduction.更多还原