[目的]通过研究不同密度下新葵18号的干物质积累、叶面积及叶面积指数、产量和含油率,分析种植密度对新葵18号生长发育及产量品质的影响.[方法]调查不同种植密度下新葵18号的生长数据,计算不同处理的干物质积累、叶面积、叶面积指数和产量,并测定含油率.[结果]种植密度对新葵18号的生长发育有着显著影响,低密度处理(4 000株/667 m2)的单株叶面积较高,高密度处理(5 500株/667 m2)的叶面积指数较高,产量、含油率和单位面积干物质积累方面以处理5 000株/667 m2的值最高.产量随密度的增大而增加,但是密度超过5 000株/667 m2后,产量则表现出减少的趋势.[结论]适宜的种植密度可以调节新葵18号个体发育,最大发挥群体效应,在新疆5 000株/667 m2是新葵18号的适宜种植密度,可以取得较高产量和品质.%[Objective]By studying the dry matter accumulation, leaf area, leaf area index, yield and oil-content of Xinkui No. 18 under different planting density, the effect of planting density on the growth, yield and quality of Xinkui No . 18 were analyzed . [Method] The study was conducted to investigate the growth data of Xinkui No . 18 and calculate dry matter accumulation ,leaf area, leaf area index and yield under different planting density,then measure its oil - content. [ Result]The result showed that planting density has obvious effect on the growth of Xinkui No.18. Low density treatment (4 000 plant/667 1112) has higher single plant leaf area. High density treatment (5 500 plant/667 m2) has higher leaf area index. Treatment 5 000 plants/667 m2 has the highest yield,oil- content and dry matter accumulation per area. With the density increase, yield increased first and then decreased.[Condusion]Appropriate density could regulate the growth of individual plant of Xinkui No. 18. In Xinjiang,5 000 plant/667 m2 is the appropriate planting density, under which high yield and quality could be obtained .
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