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色素万寿菊是短日照作物,在长日照地区,常规方法栽培不能解决病害加重问题,依据生态习性在苗期进行短日照光周期调控处理,使开花提前,并延长花期,在阴雨季节,植株生长势仍保持健壮,表现抗病性强。以大花品种万寿菊为试材,采用遮光方法,研究了光照时间缩短后,对色素万寿菊生长开花的影响。结果表明:在二对真叶期每日光照8h光照时间超过14d,可有效避开病害发生期,实现免药耕作,提高产量效果显著。
Pigment marigold is a short-day crop. In the long-sunshine region, the conventional method can not solve the problem of aggravation of the disease. According to the ecological habitat, the short-day light cycle regulation and treatment is carried out at the seedling stage to advance the flowering and extend the flowering period. During the rainy season, The trend remains robust with strong disease resistance. With big flower variety Marigold as the test material, the method of shading was used to study the effect of shortening the illumination time on the growth and flowering of pigment marigold. The results showed that the daily illumination of 8 hours at two true leaf stages exceeded 14 days, which could effectively avoid the occurrence of disease and achieve the effect of free cultivation and high yield.