生长调节剂多效唑在交播草毯生产中的应用

采用不同浓度的植物生长调节剂多效唑以浸种和叶面喷施两种方式处理黑麦草,以降低黑麦草的生长速率,削弱黑麦草对暖季型草返青的不良影响。结果表明:多效唑浸种浓度与浸种时间对黑麦草的发芽并未产生明显影响,抑制效果与药剂浓度和浸泡时间正相关,但随着生长时间的延长抑制率逐步衰减;叶面喷施与浸种两种处理方式相比较,浸种方法在前期抑制效果更好,药效持续时间上单次喷药与浸种都为30~45 d,但进行两次叶面喷施的药效持续时间可以达70 d以上,抑制效率最高可达30%~40%。

Application of Growth Regulator in Overseeding Turf Production

Used growth regulator MET on the ryegrass, soaking seeds or spraying on the leaves in different density to achieve the purpose of reducing the growth rate of ryegrass and reducing the adverse effect of ryegrass on the warm-season turf grass. The results showed that the seed soaking concentration and time in MET did not produce the signiifcant effect on germination of ryegrass, the inhibition effect was positively correlated with the concentration of the reagent and the soaking time, but with the growth time increased, the inhibition rate gradually decay; soaking method was better on inhibitory effect in the early stage, single spraying and soaking were 30~45 days, but duration of spraying efifciency can reach 70 days, inhibition efifciency up to 30%~40%.