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为了探讨多效唑在小麦上的应用效果,我们于1990～1992年度连续作了两年试验,主要对其拌种、叶面喷洒(不同时期、不同剂量)进行了试验,两年结果趋于一致。多效唑拌种表明,低浓度促进植株生长,株高略增加,高浓度则有降低株高的作用。拌种能增加分蘖成穗率,增加结实性和千粒重,因此能明显增产。多效唑叶面喷洒,起身至拔节期,每亩30～50克商品量,表现为促进分蘖成穗,降低株商,缩短基部节间长度,增加结实性,提高千粒重,抗倒、抗病能力加强,表现为增产。
In order to investigate the application effects of paclobutrazol on wheat, we conducted a two-year continuous trial in 1990-1992, mainly on its seed dressing and foliar spraying (different periods and different doses), and the results of the two years tended to be consistent. Paclobutrazol dressing showed that low concentrations of plant growth, plant height increased slightly, while high concentrations have the role of reducing plant height. Seed dressing can increase the rate of tillering spike, increase the seedability and grain weight, it can significantly increase production. Foliar foliar spray, rose to the jointing stage, 30-50 grams per mu of commercial products, the performance is to promote tillering ear, reduce the business, shortening the length of the base of the internode, increase seedability, improve 1000-grain weight, anti-down, , Showing a yield increase.