种植密度对伊犁河谷移栽橡胶草农艺性状及产量的影响

Effects of Planting Density on Agronomic Traits and Yield of Transplanting Taraxacum kok-saghyz Rodin in the Ili River Valley

为研究不同种植密度对橡胶草农艺性状及产量的影响,确定伊犁河谷移栽橡胶草最佳种植密度,采用单因素随机区组试验设计,研究6种移栽密度条件下,橡胶草农艺性状和产量的表现。结果表明,随着种植密度的减小,橡胶草单株农艺性状基本呈现增加趋势,当密度达30 cm×30 cm后,增幅减小;单株产量性状也基本呈增加趋势,30 cm×30 cm、30 cm×40 cm、40 cm×40 cm处理显著高于其他高密度处理;群体产量性状以20 cm×20 cm和30 cm×30 cm处理较高。综合各农艺和产量性状,在伊犁河谷,移栽橡胶草最佳种植密度为11.1×10~4株/hm^2,株行距配置为30 cm×30 cm。

In order to study the effects of different planting densities on the agronomic characters and yield of Taraxacum kok-saghyz and determine the best planting density of transplanted koksaphyz in the Ili River Valley,the performance of agronomic characters and yield under six different transplanting densities were surveyed using randomized block design. The results showed that with the decrease of planting density,the indices of single plant agronomic characters presented increasing trends. And when the planting density was lower than 30 cm × 30 cm,the increase amplitude diminished. The yield per plant increased with the decrease of planting density,and the yields of treatments of 30 cm × 30 cm,30 cm × 40 cm and 40 cm × 40 cm were significantly higher than those of high density treatments. The population yields of 20 cm × 20 cm and 30 cm × 30 cm treatment were higher. Comprehensively considering the agronomic characters and yield,the best planting density of koksaphyz was 11. 1 × 104 plants per hectare and the optimum planting spacing was30 cm × 30 cm in the Ili River Valley.