Response of Lantana camara L. subsp. camarato paclobutrazol and shading

Abstract

. 2001. Response of Lantana camara L. subsp. camara to paclobutrazol and shading. Can. J. Plant Sci. 81: 761-764. The effects of several shading materials on the response of Lantana camara L. subsp. camara to paclobutrazol were investigated in 1997 and 1998 under greenhouse conditions in Attica (37°48'20"N, 23°57'48"E), Greece. Treatments were shading (0%, 28% and 65%) and paclobutrazol (0, 20, 40, 80 and 160 mg L -1 ) drenches after pinching of the plants.As paclobutrazol concentration increased, plant growth, expressed by the growth index (GI), decreased, at all shading levels. At the same time, the number of flowers per plant increased to a maximum as paclobutrazol concentration increased to 80 mg L -1 . Concentrations above this resulted in a decrease in the number of flowers per plant, at all shading levels. The interaction between shading level and paclobutrazol concentration significantly affected the studied parameters. The growth index increased while the number of flowers per plant decreased as shading increased from 0% to 65%, at all concentration levels examined.Plants treated with paclobutrazol had greener leaves. At higher concentrations, some leaf distortion was noted. The most attractive plants (small with maximum flowering) were obtained with 80 mg L -1 paclobutrazol at 0% shading.

Physalis size reduction for potted ornamental plant use

“…The application of PBZ spray resulted in various effects in the number of fruit ( Figure 2B), reaching a maximum of 54 fruits per plant with a spray concentration of 60 mg a.i L -1 , following a reduction in the number of fruit per plant with the other concentrations. A similar effect using PBZ was reported by Matsoukis et al (2001) with Lantana camara.…”

Lantana camara L.: a weed with great light-acclimation capacity

“…Only foliar biomass in conditions of moderate shade was higher than for plants growing at full sunlight. Plants at full sunlight produced a higher number of inflorescences than the shading treatments as reported in other studies (Hampson et al 1996, Matsoukis et al 2001. High temperatures and especially high radiations act as induction stimuli for flowering (Vasconcelos et al 2009).…”

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“…However, the flowering of this species is inconsistent under local climate condition. Previous studies showed that plant growth regulator (PGR) successfully increased the flowering in some species such as Lantana camara (Matsoukis et al 2001), Lupinus varius (Karaguzel et al 2004), Citrus aurantifolia (Tripathi & Dhakal 2005) and Camelina sativa (Kumar et al 2012). However, such study has never been reported for perennial species under tropical climate condition.…”