SYNERGISTIC IMPACT OF SOIL MULCHING AND KAOLIN CONCENTRATION ON Zinnia elegans PLANTS GROWN UNDER DIFFERENT IRRIGATION LEVELS

El-Deen, Tarek M. Noor; Elbohy, Naglaa; Attia, Khalil M.; Y.O.Mokhtar, Nemat Allah

doi:10.21608/ejarc.2018.211733

Cited by 1 publication

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“…The results found corroborate with those reported by El-Deen et al (2018), who found a significant reduction in the height of zinnia plants with the increase in water deficit. However, Viana et al (2004) did not find significant differences among the treatments of 50, 75, 100 and 125% of the Class A pan evaporation for the leaf area of chrysanthemum, cv.…”

Section: Resultssupporting

confidence: 92%

“…The water requirement and the influence of different irrigation levels are known only for species traditionally cultivated as cut flower such as rose (Cavalcante Júnior et al, 2013), gerbera (Piroli et al, 2019), alstroemeria (Girardi et al, 2017) and chrysanthemum (Viana et al, 2004). The effect of irrigation levels on the production and quality of floral stems of zinnia has been evaluated in countries with arid or semi-arid climate (El-Deen et al, 2018;Heidari et al, 2016), but this is not found under other climatic conditions, which reinforces the need for studies on this ornamental crop that has a diversified and still little explored market potential. Besides that, it is known that the sowing time influences the duration of the cycle of zinnia (Gonçalves;Pedro Júnior;Castro, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Production and quality of zinnia under different growing seasons and irrigation levels

Martins

Pêgo

Cruz³

et al. 2021

Ciênc. agrotec.

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Zinnia (Zinnia elegans Jacq.) is a fast-growing and easy to cultivate plant that has flowers of different colors. This species has become an option to be introduced commercially in many countries as cut flower and its floral quality is influenced by different cultivation techniques. We evaluated the production and the quality of floral stems of zinnia (cv. Red California Giant) in response to growing seasons and irrigation levels. In a greenhouse located in Rio de Janeiro (Brazil), zinnia plants were grown in two cycles (autumn-winter and winter-spring) in pots with water replacement corresponding to 46, 64, 75 and 100% of their water requirement. Based on the stem length and diameter and on the flower diameter, there was variation in the quality of the stems produced in the growing seasons evaluated. All stems from the autumn-winter cycle were classified as A1 (high quality), while almost 9% of the stems from the winter-spring cycle were classified as A2 (medium quality). There was a linear growth trend in the production and quality of zinnia stems with the increase of the irrigation level in most cases, as well as significant effect of the growing seasons, with the best results of number of stems, fresh weight, length and diameter of the stem and flower diameter found in the autumn-winter cycle. The weather conditions of this cycle favor the production and quality of zinnia floral stems, and the replacement of 100% of the specie’s water requirement is recommended in both cultivation cycles.

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Section: Resultssupporting

confidence: 92%