种植密度、母本大小和移栽期对蔺草生长、开花及产量的影响

研究了蔺草(Juncus effusus L. var decipiens Bchen,品种:鄞蔺1号)生长、开花及产量对一些栽培措施的反应.结果表明,种植密度显著影响丛茎数(SPH)、草茎开花率(SFP)、长蔺率(LSP)、短草率(SSP)、生物学产量和经济产量,较高的种植密度使整个生育期SPH和产量显著高于低种植密度,但随着密度的增加,LSP显著下降.两种不同母本大小之间的SPH、SFP和产量没有显著差异,表明即使只有3枚草茎的移栽苗已具有感受环境因子时开花诱导的能力.随着移栽期的推迟,SFP显著增加,但对SPH、平均草茎长度(MSL)、LSP、SSP、生物学产量和经济产量没有显著影响.故建议,为减少草茎开花率,蔺草应在晚稻收割后尽早移栽.

Flowering and yield of Mat Rush (Juncus effusus L. ) in response to population density, seedling size and transplanting date

The response of Growth, flowering and yield in mat rush ( Juncus effusus L )to some cultural practices were studied Planting density significantly affected stem number per hill (SPH), stem flowering percentage (SFP), long stem percentage (LSP), short stem percentage (SSP), biomass and economic yield Higher density had significantly higher SPH at various stages and stem yield at harvest than lower density, and with an increase in planting density, LSP significantly decreased There were no significant differences in SPH, SFP and yield between two seedling size treatments, indicating that even an offset with only three stems might be large enough to respond to environmental triggers for flowering Delayed transplanting caused increased SFR, but had no significant effect on SPH, mean stem percentage (MSL), LSP, SSP, biomass and economic yield It may be suggested that mat rush should be transplanted immediately after rice is harvested so as to reduce SFP and improve stem quality