[目的]为红麻纤维和种子高产栽培提供技术支撑和理论依据.[方法]于2009年在广西农业科学院里建科研基地以福红991、福红952和福红航992为供试材料,设置品种、播期及密度三因素处理,考查全生育期、株高、茎粗、皮厚、皮重、种子产量等指标.[结果]对红麻生长发育及产量性状影响的顺序为:播期＞密度＞品种；5月11日播种可获得较高的纤维产量和有效种子产量；种植密度为22.5万～27.0万苗/ha时获得较高的纤维产量和有效种子产量；3个红麻品种之间的纤维和种子产量差异不显著；与纤维产量呈极显著正相关的有株高、茎粗、皮厚等8个指标,与种子产量呈极显著正相关的有株高、茎粗、株熟果数等11个指标.[结论]一定时期内,红麻适当早播可以获得较高的纤维和种子产量,但在7月左右晚播其种子产量也较理想.在红麻实际生产中,应根据目标综合考虑播期、密度及品种的协调关系.此外,在红麻新品种选育工作中可选择株高、茎粗、皮厚等指标进行重点考察.%[ Objective ]This research aimed to provide technical support and theoretical basis for high-yield cultivation of kenaf (Hibiscus cannabilus L.) fiber and seeds. [Method]At the scientific research construction base in Guangxi Academy of Agricultural Sciences in 2009, the kenaf varieties Fuhong 991, Fuhong 952, and Fuhonghang 992 were used as test materials. The three testing factors of variety, sowing date, and density were set and then repeated for 3 times to examine the whole growth period, plant height, stem diameter, skin thickness, skin weight, seed yield, and other relevant indexes. [Result]The effects of testing factors on the kenaf growth and yield traits were ordered as follows: sowing date> density > varieties. When the sowing date was set at May 11th, higher fiber and usable seed yields were obtained. When the planting density was between 225,000-270,000 seedlings/ha, higher fiber and seed yields were acquired. Differences between the fiber and seed yield of the 3 kenaf varieties were not significant. The fiber yield was significantly positively correlated with 8 kenaf indicators, such as plant height, stem diameter, skin thickness, etc., and the seed yield was significantly positively correlated with 11 kenaf indicators, such as plant height, stem diameter, ripe fruit number, etc. [Conclusion]Within a certain time frame, proper early kenaf sowing could result in higher fiber and seed yields, but when sowing occurred during the late sowing period of July, the seed yield could also be ideal. During the actual production of kenaf, the sowing date, density, and variety should be coordinated according to targeted comprehensive consideration. On the other hand, when selecting new breeding kenaf varieties, the plant height, stem diameter, skin thickness , and other relevant indicators could be selected as the main investigative indicators.
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